Data Repository
A comprehensive repository of Helios 1 and 2 mission data.
This page is a user-friendly way of navigating through the content of the entire archive, with downloadable links to the various data products, documents, and other relevant information. The information is organized by categories (experiments, data, documentation, etc.) with brief descriptions of each file along with their creation dates, files sizes and types.
User Guide
*Some description about the page*
Action Item List.pdf
This document, created by Chadi Salem (SSL/UC Berkeley), is a list of action items for the Helios data archive project. It serves as a fantastic overview of the progress that has been made in aggregating, analyzing, evaluating, documenting and archiving the available Helios 1 and 2 in-situ data.
[expand title="E1 Plasma Detectors" rel="E1" id="repo-E1"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| heliosE1.tar | All available original Helios 1 and 2 E1 experiment data. This file is very large: below the data is broken down into smaller downloadable files. | 1974- 1985 | 71G | TAR |
[expandsub1 title="Original Data" rel="E1"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| helios_1_originaldata.tar | Helios 1 spacecraft: original E1 data. | 1974 - 1985 | 44G | TAR |
| helios_1_tar-by-year/ | Folder with downloadable Helios 1 E1 data files sorted by year | 1974 - 1985 | - | Folder |
| helios_1/ | Folder with individual downloadable Helios 1 E1 data files | 1974 - 1985 | - | Folder |
| helios_2_originaldata.tar | Helios 2 spacecraft: original E1 data. | 1976 - 1980 | 27G | TAR |
| helios_2_tar-by-year/ | Folder with downloadable Helios 2 E1 data files sorted by year | 1976 - 1980 | - | Folder |
| helios_2/ | Folder with individual downloadable Helios 1 E2 data files | 1976 - 1980 | - | Folder |
[/expandsub1]
[expandsub1 title="Instrument Documentation" rel="E1"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| Stansby Helios Plasma Instruments Overview | An overview of the in-situ plasma instrumentation on board the Helios spacecraft. Information is taken from the translated technical manuals. | 2017 | 190K | |
| Stansby A New Inner Heliosphere Proton Parameter Dataset | We describe a reprocessing of the original Helios ion distribution functions to provide reliable and reproducible data to characterise the proton core population of the solar wind in the inner heliosphere. | 2018 | 1.3M | |
| Stansby Alpha particle thermodynamics in the inner heliosphere fast solar wind | In this study we aim to use the properties of alpha particles at heliocentric distances between 0.3 AU and 1 AU to study plasma processes occurring at the points of observation, and to infer processes occurring inside 0.3 AU by comparing our results to previous remote sensing observations of the plasma closer to the Sun. | 2019 | 330K | |
| E1 Bluebook BMFT-FB-W 81-015 (English) The instruments of the Plasma experiments on the HELIOS-Sun probes | This is an English translation of the original German document. The work was carried out by Imperial College London using computer translation with limited further copy editing. Four independent instruments are grouped under the name "Plasma Experiment", whose shared responsibility is the investigation of the interplanetary plasma, the so-called solar wind. | 1981 | 14M | |
| E1 Bluebook BMFT-FB-W 81-015 (German) Die Instrumente des Plasmaexperiments auf den HELIOS-Sonnensonden | Original German bluebook for experiment E1 instruments. | 1981 | 78M | |
| Schwenn Q&A about Helios E1 and E2 | This document is an email response from Schwenn, answering several detailed questions about experiments E1 and E2. The questions were composed by: Bob Wimmer-Schweingruber, Marsch, Eckart, Lars Berger, Jan Steinhagen, and Chadi Salem. | 2015 | 97K | |
| HELIOS SPASE Resource Description.pdf | This page summarizes information about the selected resource (Helios 1 Merged Plasma and Magnetic Field) and its origin based on SPASE metadata. | 2008 | 136K | |
| Schwenn The plasma experiment on Helios E1 (English).pdf | English translation of an entry, which discusses the experiment E1 instrument, in an aerospace research journal. The "plasma experiment" aboard of the solar probe HELIOS consists of four independent instruments which are designed to investigate the interplanetary plasma, the so-called solar wind. | 1975 | 927K | |
| Preparation and Evaluation of in-situ E1 Data (English - Translated).pdf | English translation of document that provides details about the original data collection and data processing. This report, which immediately adjacent BMFT-FB-W81-015 on the technical description in the report (whose understanding is assumed), describes the extraction of plasma parameters. | 1981 | 4.5M | |
| Preparation and Evaluation of in-situ E1 Data (TitlePage).pdf | Title Page of: Original German E1 instrument document that describes the extraction of plasma parameters. Provides details about the original data collection and data processing. | 1981 | 367K | |
| Preparation and Evaluation of in-situ E1 Data (part1).pdf | Report and some referenced data of: Original German E1 instrument document that describes the extraction of plasma parameters. Provides details about the original data collection and data processing. | 1981 | 32M | |
| Preparation and Evaluation of in-situ E1 Data (part2).pdf | Some referenced data of: Original German E1 instrument document that describes the extraction of plasma parameters. Provides details about the original data collection and data processing. | 1981 | 22M |
[/expandsub1]
[expandsub1 title="Programs & Routines -- Collected by Marsch" rel="E1"]
[expandsub2 title = "Fortran E1 Programs" rel="E1"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| kalibrations_daten.inc | Data Calibration | 2002 | 16K | |
| Helios_VDF.txt | Program 3-D proton (2-D electron) velocity distribution function; some indices and plot variables | 2002 | 8.0K | TXT |
| CINTI.FOR | Subroutine CINTI: to interpolate the neasured velocity distribution | 2002 | 16K | Fortran |
| INIT.FOR | German: Common block for the channels of Helios 1 | 2002 | 18K | Fortran |
| ALPHA.FOR | German; Subroutine RALFA: This subroutine uses an interpolation to separate the Alpha count rates from the Proton count rates and saves them in seperate fields | 2002 | 23K | Fortran |
| MOMENT.FOR | German; Subroutine RAND: Provides a measure of how strongly the spectrum is affected by the edge channels with a large count rate | 2002 | 80K | Fortran |
| READ.FOR | For reading the CD disk containing Helios data | 2002 | 16K | Fortran |
| READ.PRO | Programme to read the Helios ion/electron velocity distribution functions, vdfp, vdfe and the corresponding velocity components. Program for the 3-D proton (2-D electron) velocity distribution function and determination of the velocity ranges and maximum vdf value | 2002 | 11K | PRO |
| vdf.PRO | Programme to read the Helios ion/electron velocity distribution functions, vdfp, vdfe and the corresponding velocity components. Program for the 3-D proton (2-D electron) velocity distribution function and determination of the velocity ranges and maximum vdf value | 2002 | 15K | PRO |
| RUN.FOR | Main progamme to calculate ion 3-D velocity distribution functions from the Helios 1 and 2 raw data | 2002 | 34K | Fortran |
| SAV_I_RUN.FOR | Main progamme to calculate ion 3-D velocity distribution functions from the Helios 1 and 2 raw data (DUPLICATE???) | 2002 | 31K | Fortran |
| SI_PLOT.FOR | Subroutine iplot: to plot the distribution functions link with, dislin/lib | 2002 | 37K | Fortran |
| Ratio.pro | Merged analysis and plot programme: Part A: Read the Helios data file Part B: Determine a restricted array of the 3-D VDF from (12,12,32) Part C: Determine proton distribution and separate alphas Part D: Determine alpha particle distribution Part E: Calculate ion moments Part F: Plot the measured data | 2003 | 41K | PRO |
[/expandsub2]
[expandsub2 title = "Miscellaneous E1 Routines" rel="E1"]
[expandsub3 title = "IDL-VDF-02" rel="E1"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| Readme | Readme file provides details about data reading and program output: output files are generated with the program "helios_3d_table.f" | 2002 | 6.0K | TXT |
| Readme.rtf | Same as above, in RTF (rich text format) | 2005 | 6.6K | RTF |
| Untitled1.pro | Programme to read the Helios ion/electron velocity distribution functions, vdfp, vdfe and the corresponding velocity components. Program for the 3-D proton (2-D electron) velocity distribution function and determination of the velocity ranges and maximum vdf value | 2002 | 1.4K | PRO |
| dat_read_vdf.dat | Solar wind (proton) velocity components: 5 column data file(?) | 2002 | 11K | DAT |
| h2y76d018h00m00s37_hdm.0 | Data file | 2002 | 25K | |
| h2y76d105h00m00s31_hdm.1 | Data file | 2002 | 49K | |
| h2y76d105h00m01s12_hdm.0 | Data file | 2002 | 51K | |
| h2y76d105h00m01s52_hdm.1 | Data file | 2002 | 52K | |
| h2y76d105h00m02s33_hdm.0 | Data file | 2002 | 49K | |
| h2y76d105h00m03s13_hdm.1 | Data file | 2002 | 58K | |
| marsch_vdf.pro | Programme to read the Helios ion/electron velocity distribution functions, vdfp, vdfe and the corresponding velocity components. Program for the 3-D proton (2-D electron) velocity distribution function and determination of the velocity ranges and maximum vdf value | 2002 | 15K | PRO |
| read_VDF_2.pro | Programme to read the Helios ion/electron velocity stuff. VDF_2 | 2002 | 12K | PRO |
| read_VDF_3.BAK | Programme to read the Helios ion/electron velocity stuff. VDF_3 | 2002 | 13K | BAK |
| read_VDF_3.pro | Programme to read the Helios ion/electron velocity stuff. VDF_3 | 2002 | 13K | PRO |
| read_VDF_4.pro | Programme to read the Helios ion/electron velocity stuff. VDF_4 | 2002 | 21K | PRO |
| read_VDF_5.BAK | Programme to read the Helios ion/electron velocity stuff. VDF_5 | 2002 | 21K | BAK |
| read_VDF_5.pro | Programme to read the Helios ion/electron velocity stuff. VDF_5 | 2002 | 21K | PRO |
| test.pro | PRO programme test: "print, c" | 2002 | 39 | PRO |
[/expandsub3]
[expandsub3 title = "Programs from Lindau (2002)" rel="E1"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| calibration.inc | This calibration data for the individual CEM has been reassembled according to BMFT-Fb-W-81-015 pp.182 | 2002 | 20K | INC |
| kalibrations_daten.inc | Data calibration | 2002 | 16K | INC |
| helios.f | CEM calibration data see blue book (BMFT-FB-W 81-015) | 2002 | 29K | F |
| helios_3d_table2.f | Program; unsure of purpose "Email from Lindau; corrected for work with power station on pc 2002." | 2002 | 21K | F |
| type_helios_3d_table.inc | Program; unsure of purpose | 2002 | 1.5K | INC |
| types.inc | Program; unsure of purpose | 2002 | 1.8K | INC |
[/expandsub3]
[/expandsub2]
[/expandsub1]
[expandsub1 title="Other Programs" rel="E1"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| Matteini_multidata_ions_analysis.pro | Merged analysis and plot programme: A: Read the Helios data file B: Determine a restricted array of the 3-D VDF from (12,12,32) C: Determine proton distribution and separate alphas D: Determine alpha particle distribution E: Calculate ion moments F: Plot the measured datap | 2003 | 39K | PRO |
| steinhagen_example_for_chadi.py | Python script; unsure of purpose | 2016 | 214 | PY |
| steinhagen_for_chadi.py | Python script; unsure of purpose | 2016 | 18K | PY |
[/expandsub1]
[expandsub1 title="New Proton Corefit Data" rel="E1"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| core_fit_users_guide.pdf | This document describes the Helios corefit data product. This is a new data set which contains estimates of number density, velocity, and temperatures of the proton core population in the solar wind created from systematic fitting of all the original Helios 3D distribution functions. | 2017 | 521K | |
| ascii.tar.gz | Helios corefit data in Ascii format | 125M | TAR | |
| ascii/ | Folder with individual downloadable corefit data files in ASCII format | - | Folder | |
| cdf.tar.gz | Helios corefit data in CDF format | 179M | TAR | |
| cdf/ | Folder with individual downloadable corefit data files in CDF | - | Folder |
[expandsub2 title="Source Code" rel="E1"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| LICENSE | Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. | 2007 | 34K | TXT |
| config.ini.template | [data_dirs] # Directory to output fitted parameters to output_dir = | 2017 | 68 | |
| reqirements.txt | pandas numpy heliopy>=0.1b4 scipy | 2017 | 34 | TXT |
[expandsub3 title = "Guide" rel="E1"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| This document describes the Helios corefit data product. This is a new data set which contains estimates of number density, velocity, and temperatures of the proton core population in the solar wind created from systematic fitting of all the original Helios 3D distribution functions. | 2017 | 520K | ||
| Same document as above -- describes the Helios corefit data product -- in TEX format. | 2017 | 13K | TEX | |
| I3_3D_example.pdf | Corefit Data Product Users Guide - FIGURE 1: Example of distribution function data and corresponding fit. | 2017 | 39K | |
| density_comparison.pdf | Corefit Data Product Users Guide - FIGURE 2: One day comparison of merged proton number density (blue) and corefit number density (orange). | 2017 | 47K | |
| velocity_comparison.pdf | Corefit Data Product Users Guide - FIGURE 3: One day comparison of merged proton velocity (blue) and corefit proton velocity (orange) in an RTN co-ordinate system. | 2017 | 141K | |
| temperature_comparision.pdf | Corefit Data Product Users Guide - FIGURE 4: One day comparison of merged proton temperature and corefit proton temperatures. | 2017 | 114K |
[/expandsub3]
[expandsub3 title = "Fittings" rel="E1"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| config.py | 2017 | 751 | PY | |
| convert_distparams.py | 2017 | 2.3K | PY | |
| helpers.py | 2017 | 3.6K | PY | |
| proton_core_1D.py | 2017 | 4.6K | PY | |
| proton_core_3D.py | 2017 | 11K | PY | |
| save_dist_params.py | 2017 | 6.6K | PY |
[/expandsub3]
[expandsub3 title = "Visualizations" rel="E1"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| fit_stat_graphs.py | 2017 | 1.5K | PY | |
| fit_stats.py | 2017 | 1.4K | PY | |
| helpers.py | 2017 | 5.4K | PY | |
| merged_compare.py | 2017 | 4.1K | PY | |
| plot_fitted_dist.py | 2017 | 7.2K | PY |
[/expandsub3]
[expandsub3 title = "Miscellaneous" rel="E1"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| helios_corefit.qfh | 2017 | 11K | QFH | |
| move_cdf.py | 2017 | 730 | PY | |
| to_cdf.sh | 2017 | 240 | SH |
[/expandsub3]
[/expandsub2]
[expandsub2 title = "View All Files" rel="E1"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| heliosE1.tar | All available original Helios 1 and 2 E1 experiment data. This file is very large: below the data is broken down into smaller downloadable files. | 1974- 1985 | 71G | TAR |
| Title | Description/Abstract | Date | Size | Type |
| helios_1_originaldata.tar | Helios 1 spacecraft: original E1 data. | 1974 - 1985 | 44G | TAR |
| helios_1_tar-by-year/ | Folder with downloadable Helios 1 E1 data files sorted by year | 1974 - 1985 | - | Folder |
| helios_1/ | Folder with individual downloadable Helios 1 E1 data files | 1974 - 1985 | - | Folder |
| helios_2_originaldata.tar | Helios 2 spacecraft: original E1 data. | 1976 - 1980 | 27G | TAR |
| helios_2_tar-by-year/ | Folder with downloadable Helios 2 E1 data files sorted by year | 1976 - 1980 | - | Folder |
| helios_2/ | Folder with individual downloadable Helios 1 E2 data files | 1976 - 1980 | - | Folder |
| Title | Description/Abstract | Date | Size | Type |
| Helios_data_time_diffs.png | Graph that shows some issue(s) with the E1, Helios 1, magnetic field data | 2011 | 146K | PNG |
| Title | Description/Abstract | Date | Size | Type |
| Stansby Helios Plasma Instruments Overview | An overview of the in-situ plasma instrumentation on board the Helios spacecraft. Information is taken from the translated technical manuals. | 2017 | 190K | |
| Stansby A New Inner Heliosphere Proton Parameter Dataset | We describe a reprocessing of the original Helios ion distribution functions to provide reliable and reproducible data to characterise the proton core population of the solar wind in the inner heliosphere. | 2018 | 1.3M | |
| Stansby Alpha particle thermodynamics in the inner heliosphere fast solar wind | In this study we aim to use the properties of alpha particles at heliocentric distances between 0.3 AU and 1 AU to study plasma processes occurring at the points of observation, and to infer processes occurring inside 0.3 AU by comparing our results to previous remote sensing observations of the plasma closer to the Sun. | 2019 | 330K | |
| E1 Bluebook BMFT-FB-W 81-015 (English) The instruments of the Plasma experiments on the HELIOS-Sun probes | This is an English translation of the original German document. The work was carried out by Imperial College London using computer translation with limited further copy editing. Four independent instruments are grouped under the name "Plasma Experiment", whose shared responsibility is the investigation of the interplanetary plasma, the so-called solar wind. | 1981 | 14M | |
| E1 Bluebook BMFT-FB-W 81-015 (German) Die Instrumente des Plasmaexperiments auf den HELIOS-Sonnensonden | Original German bluebook for experiment E1 instruments. | 1981 | 78M | |
| Schwenn Q&A about Helios E1 and E2 | This document is an email response from Schwenn, answering several detailed questions about experiments E1 and E2. The questions were composed by: Bob Wimmer-Schweingruber, Marsch, Eckart, Lars Berger, Jan Steinhagen, and Chadi Salem. | 2015 | 97K | |
| HELIOS SPASE Resource Description.pdf | This page summarizes information about the selected resource (Helios 1 Merged Plasma and Magnetic Field) and its origin based on SPASE metadata. | 2008 | 136K | |
| Schwenn The plasma experiment on Helios E1 (English).pdf | English translation of an entry, which discusses the experiment E1 instrument, in an aerospace research journal. The "plasma experiment" aboard of the solar probe HELIOS consists of four independent instruments which are designed to investigate the interplanetary plasma, the so-called solar wind. | 1975 | 927K | |
| Preparation and Evaluation of in-situ E1 Data (English - Translated).pdf | English translation of document that provides details about the original data collection and data processing. This report, which immediately adjacent BMFT-FB-W81-015 on the technical description in the report (whose understanding is assumed), describes the extraction of plasma parameters. | 1981 | 4.5M | |
| Preparation and Evaluation of in-situ E1 Data (TitlePage).pdf | Title Page of: Original German E1 instrument document that describes the extraction of plasma parameters. Provides details about the original data collection and data processing. | 1981 | 367K | |
| Preparation and Evaluation of in-situ E1 Data (part1).pdf | Report and some referenced data of: Original German E1 instrument document that describes the extraction of plasma parameters. Provides details about the original data collection and data processing. | 1981 | 32M | |
| Preparation and Evaluation of in-situ E1 Data (part2).pdf | Some referenced data of: Original German E1 instrument document that describes the extraction of plasma parameters. Provides details about the original data collection and data processing. | 1981 | 22M | |
| Title | Description/Abstract | Date | Size | Type |
| kalibrations_daten.inc | Data Calibration | 2002 | 16K | |
| Helios_VDF.txt | Program 3-D proton (2-D electron) velocity distribution function; some indices and plot variables | 2002 | 8.0K | TXT |
| CINTI.FOR | Subroutine CINTI: to interpolate the neasured velocity distribution | 2002 | 16K | Fortran |
| INIT.FOR | German: Common block for the channels of Helios 1 | 2002 | 18K | Fortran |
| ALPHA.FOR | German; Subroutine RALFA: This subroutine uses an interpolation to separate the Alpha count rates from the Proton count rates and saves them in seperate fields | 2002 | 23K | Fortran |
| MOMENT.FOR | German; Subroutine RAND: Provides a measure of how strongly the spectrum is affected by the edge channels with a large count rate | 2002 | 80K | Fortran |
| READ.FOR | For reading the CD disk containing Helios data | 2002 | 16K | Fortran |
| READ.PRO | Programme to read the Helios ion/electron velocity distribution functions, vdfp, vdfe and the corresponding velocity components. Program for the 3-D proton (2-D electron) velocity distribution function and determination of the velocity ranges and maximum vdf value | 2002 | 11K | PRO |
| vdf.PRO | Programme to read the Helios ion/electron velocity distribution functions, vdfp, vdfe and the corresponding velocity components. Program for the 3-D proton (2-D electron) velocity distribution function and determination of the velocity ranges and maximum vdf value | 2002 | 15K | PRO |
| RUN.FOR | Main progamme to calculate ion 3-D velocity distribution functions from the Helios 1 and 2 raw data | 2002 | 34K | Fortran |
| SAV_I_RUN.FOR | Main progamme to calculate ion 3-D velocity distribution functions from the Helios 1 and 2 raw data (DUPLICATE???) | 2002 | 31K | Fortran |
| SI_PLOT.FOR | Subroutine iplot: to plot the distribution functions link with, dislin/lib | 2002 | 37K | Fortran |
| Ratio.pro | Merged analysis and plot programme: Part A: Read the Helios data file Part B: Determine a restricted array of the 3-D VDF from (12,12,32) Part C: Determine proton distribution and separate alphas Part D: Determine alpha particle distribution Part E: Calculate ion moments Part F: Plot the measured data | 2003 | 41K | PRO |
| Title | Description/Abstract | Date | Size | Type |
| Readme | Readme file provides details about data reading and program output: output files are generated with the program "helios_3d_table.f" | 2002 | 6.0K | TXT |
| Readme.rtf | Same as above, in RTF (rich text format) | 2005 | 6.6K | RTF |
| Untitled1.pro | Programme to read the Helios ion/electron velocity distribution functions, vdfp, vdfe and the corresponding velocity components. Program for the 3-D proton (2-D electron) velocity distribution function and determination of the velocity ranges and maximum vdf value | 2002 | 1.4K | PRO |
| dat_read_vdf.dat | Solar wind (proton) velocity components: 5 column data file(?) | 2002 | 11K | DAT |
| h2y76d018h00m00s37_hdm.0 | Data file | 2002 | 25K | |
| h2y76d105h00m00s31_hdm.1 | Data file | 2002 | 49K | |
| h2y76d105h00m01s12_hdm.0 | Data file | 2002 | 51K | |
| h2y76d105h00m01s52_hdm.1 | Data file | 2002 | 52K | |
| h2y76d105h00m02s33_hdm.0 | Data file | 2002 | 49K | |
| h2y76d105h00m03s13_hdm.1 | Data file | 2002 | 58K | |
| marsch_vdf.pro | Programme to read the Helios ion/electron velocity distribution functions, vdfp, vdfe and the corresponding velocity components. Program for the 3-D proton (2-D electron) velocity distribution function and determination of the velocity ranges and maximum vdf value | 2002 | 15K | PRO |
| read_VDF_2.pro | Programme to read the Helios ion/electron velocity stuff. VDF_2 | 2002 | 12K | PRO |
| read_VDF_3.BAK | Programme to read the Helios ion/electron velocity stuff. VDF_3 | 2002 | 13K | BAK |
| read_VDF_3.pro | Programme to read the Helios ion/electron velocity stuff. VDF_3 | 2002 | 13K | PRO |
| read_VDF_4.pro | Programme to read the Helios ion/electron velocity stuff. VDF_4 | 2002 | 21K | PRO |
| read_VDF_5.BAK | Programme to read the Helios ion/electron velocity stuff. VDF_5 | 2002 | 21K | BAK |
| read_VDF_5.pro | Programme to read the Helios ion/electron velocity stuff. VDF_5 | 2002 | 21K | PRO |
| test.pro | PRO programme test: "print, c" | 2002 | 39 | PRO |
| Title | Description/Abstract | Date | Size | Type |
| calibration.inc | This calibration data for the individual CEM has been reassembled according to BMFT-Fb-W-81-015 pp.182 | 2002 | 20K | INC |
| kalibrations_daten.inc | Data calibration | 2002 | 16K | INC |
| helios.f | CEM calibration data see blue book (BMFT-FB-W 81-015) | 2002 | 29K | F |
| helios_3d_table2.f | Program; unsure of purpose "Email from Lindau; corrected for work with power station on pc 2002." | 2002 | 21K | F |
| type_helios_3d_table.inc | Program; unsure of purpose | 2002 | 1.5K | INC |
| types.inc | Program; unsure of purpose | 2002 | 1.8K | INC |
| Title | Description/Abstract | Date | Size | Type |
| Matteini_multidata_ions_analysis.pro | Merged analysis and plot programme: A: Read the Helios data file B: Determine a restricted array of the 3-D VDF from (12,12,32) C: Determine proton distribution and separate alphas D: Determine alpha particle distribution E: Calculate ion moments F: Plot the measured datap | 2003 | 39K | PRO |
| steinhagen_example_for_chadi.py | Python script; unsure of purpose | 2016 | 214 | PY |
| steinhagen_for_chadi.py | Python script; unsure of purpose | 2016 | 18K | PY |
| Title | Description/Abstract | Date | Size | Type |
| core_fit_users_guide.pdf | This document describes the Helios corefit data product. This is a new data set which contains estimates of number density, velocity, and temperatures of the proton core population in the solar wind created from systematic fitting of all the original Helios 3D distribution functions. | 2017 | 521K | |
| ascii.tar.gz | Helios corefit data in Ascii format | 125M | TAR | |
| ascii/ | Folder with individual downloadable corefit data files in ASCII format | - | Folder | |
| cdf.tar.gz | Helios corefit data in CDF format | 179M | TAR | |
| cdf/ | Folder with individual downloadable corefit data files in CDF | - | Folder | |
| Title | Description/Abstract | Date | Size | Type |
| LICENSE | Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. | 2007 | 34K | TXT |
| config.ini.template | [data_dirs] # Directory to output fitted parameters to output_dir = | 2017 | 68 | |
| reqirements.txt | pandas numpy heliopy>=0.1b4 scipy | 2017 | 34 | TXT |
| Title | Description/Abstract | Date | Size | Type |
| This document describes the Helios corefit data product. This is a new data set which contains estimates of number density, velocity, and temperatures of the proton core population in the solar wind created from systematic fitting of all the original Helios 3D distribution functions. | 2017 | 520K | ||
| Same document as above -- describes the Helios corefit data product -- in TEX format. | 2017 | 13K | TEX | |
| I3_3D_example.pdf | Corefit Data Product Users Guide - FIGURE 1: Example of distribution function data and corresponding fit. | 2017 | 39K | |
| density_comparison.pdf | Corefit Data Product Users Guide - FIGURE 2: One day comparison of merged proton number density (blue) and corefit number density (orange). | 2017 | 47K | |
| velocity_comparison.pdf | Corefit Data Product Users Guide - FIGURE 3: One day comparison of merged proton velocity (blue) and corefit proton velocity (orange) in an RTN co-ordinate system. | 2017 | 141K | |
| temperature_comparision.pdf | Corefit Data Product Users Guide - FIGURE 4: One day comparison of merged proton temperature and corefit proton temperatures. | 2017 | 114K | |
| Title | Description/Abstract | Date | Size | Type |
| config.py | 2017 | 751 | PY | |
| convert_distparams.py | 2017 | 2.3K | PY | |
| helpers.py | 2017 | 3.6K | PY | |
| proton_core_1D.py | 2017 | 4.6K | PY | |
| proton_core_3D.py | 2017 | 11K | PY | |
| save_dist_params.py | 2017 | 6.6K | PY | |
| Title | Description/Abstract | Date | Size | Type |
| fit_stat_graphs.py | 2017 | 1.5K | PY | |
| fit_stats.py | 2017 | 1.4K | PY | |
| helpers.py | 2017 | 5.4K | PY | |
| merged_compare.py | 2017 | 4.1K | PY | |
| plot_fitted_dist.py | 2017 | 7.2K | PY | |
| Title | Description/Abstract | Date | Size | Type |
| helios_corefit.qfh | 2017 | 11K | QFH | |
| move_cdf.py | 2017 | 730 | PY | |
| to_cdf.sh | 2017 | 240 | SH |
[/expandsub2]
[/expandsub1]
[/expand]
[expand title="E2 Fluxgate Magnetometer for Field Fluctuations" rel="E2" id="repo-E2"]
[expandsub1 title = "Data from NSSDC" rel="E2"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| Helios1_H19740010000.dat | Ascii sample of Helios 1, 8-second averages data Jan 1974 to Dec 1976. There are 5 columns (time & 4 data columns) and 2494426 rows of data | 209M | DAT | |
| Helios2_H19760010000.dat | Ascii sample of Helios 2, 8-second averages data from Jan 1976 to Apr 1976. There are 5 columns (time & 4 data columns) and 1016640 rows of data. | 85M | DAT |
[expandsub2 title = "Binary H1 8-Sec Averages Magnetic Field Data" rel="E2"]
[expandsub3 title = "ASCII" rel="E2"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| SHA1SUM.txt | "# rehashed on 2013-09-02 06:47:28" Link to hash codes of TAR files below | 2013 | 338 | TXT |
| SPHE-00082_DD047661_10-DEC-74.dir/ | 1974 | - | Folder | |
| SPHE-00082_DD047665_08-MAR-75.dir/ | 1975 | - | Folder | |
| SPHE-00082_DD047661_10-DEC-74.tar | 1974 | 16M | TAR | |
| SPHE-00082_DD047665_08-MAR-75.tar | 1975 | 15M | TAR | |
| SPHE-00082_DD047666_16-AUG-75.tar | 1975 | 15M | TAR | |
| SPHE-00082_DD047667_11-MAR-76.tar | 1976 | 6.1M | TAR |
[/expandsub3]
[expandsub3 title = "Attrib" rel="E2"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| SHA1SUM | 338 | |||
| SPHE-00082_DD047661_10-DEC-74_att | 1974 | 1.6M | ||
| SPHE-00082_DD047665_08-MAR-75_att | 1975 | 1.7M | ||
| 1975 | 1.7M | |||
| SPHE-00082_DD047667_11-MAR-76_att | 1976 | 692K |
[/expandsub3]
[/expandsub2]
[expandsub2 title = "8-Sec Averages NSSDC" rel="E2"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| AAREADME.TXT | Helios 1 and 2 experiment E2 Triax Fluxgate Magnetometer: 8 Second Average Magnetic Field Data NSSDC ID: 74-097A-01E, 76-003A-01E The data are divided into sub-directories by spacecraft, ie: sub-directory H1 contains the Helios A data and sub-directory H2 contains the Helios B data. The filenames are defined as SS_YYDDD.dat where: SS - spacecraft identification, YY - year of data, DDD - Julian day of year, (Jan. 01 = day 1). | 1996 | 574 | TXT |
| FORMAT.DOC | Format for the ASCII version of Helios A & B 8 Second Averaged Magnetic Field Vector Data NSSDC ID: 74-097A-01E & 76-003A-01E | 1996 | 9.2K | DOC |
| H1/ | Helios 1, 8-second averages data with filenames defined as ss_yyddd.dat | 1996 | - | Folder |
| H2/ | Helios 2, 8-second averages data with filenames defined as ss_yyddd.dat | 1996 | - | Folder |
[/expandsub2]
[expandsub2 title = "40.5-Sec Averages Merged NSSDC" rel="E2"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| he1_40sec.zip | Helios 1, 40.5 second averages mag field vector data | 120M | ZIP | |
| he1_40sec_old/ | - | Folder | ||
| he2_40sec.zip | Helios 2, 40.5 second averages mag field vector data | 67M | ZIP | |
| he2_40sec/ | - | Folder |
[/expandsub2]
[/expandsub1]
[expandsub1 title = "Best Data from Cologne Nov 2016 (4Hz Data)" rel="E2"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| Data Archive for magnetic field, orbit, and plasma data in IGM data format and other formats | IGM document from 1998: written in German | 1998 | 298k | |
| HR - High Resolution 4Hz Data/ | - | Folder | ||
| IDLSAVE_4Hz_data/ | - | Folder | ||
| AVG - Various Averages given by L. Wennmacher/ | - | Folder | ||
| AVG_Organized/ | - | Folder | ||
| AVG_Organized .zip | 3.0G | ZIP |
[/expandsub1]
[expandsub1 title = "Instrument Documentation" rel="E2"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| he1_resolution.list | Provides an overview of resolutions available in the data daily files (referenced in the Wennmacher email) | 1974- 1984 | 716K | LIST |
| he2_resolution.list | Provides an overview of resolutions available in the data daily files (referenced in the Wennmacher email) | 1976- 1980 | 342K | LIST |
| E2_BlueBook_Neubauer Helios E2 E4 1981 (German - Original).pdf | Original E2 & E4 instrument bluebook written in German. | 1981 | 7.4M | |
| E2_BlueBook_Neubauer Helios E2 E4 1981 (English - Translated).pdf | English translation of original E2 & E4 instrument bluebook. Translation was done in 2017 at UC Berkeley by Tara Mellor. | 1981/ 2017 | 3.3M | |
| E2 Data Format (Wennmacher Email).txt | Correspondence from Wennmacher that describes the E2 data format | 2009 | 2.8K | TXT |
| Helios Magnetic Field Data (Experiment E2) | Description of the original E2 data/data processing by F.M. Neubauer | 2014 | 29K | |
| Q&A about Helios E2 & E4 (Neubauer Email).pdf | Neubauer anwsers several questions regarding E2 & E4 | 2015 | 111K |
[/expandsub1]
[/expand]
[expand title="E3 Fluxgate Magnetometer for Average Fields" rel="E3" id="repo-E3"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| helios1_6sec_ness.zip | Helios 1 spacecraft original E3 data | 1974- 1981 | 91M | ZIP |
| helios1_6sec_ness/ | Subdirectory with individual downloadable Helios 1 E3 data files sorted by year | 1974- 1981 | - | Folder |
| helios2_6sec_ness.zip | Helios 1 spacecraft original E3 data | 1976- 1980 | 70M | ZIP |
| helios2_6sec_ness/ | Subdirectory with individual downloadable Helios 2 E3 data files sorted by year | 1976- 1980 | - | Folder |
[expandsub1 title="Instrument Documentation" rel="E3"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| The Rome‐GSFC magnetometer E3 onboard Helios | A presentation that summarizes the E3 instrument and original data processing/data collection: by Roberto Bruno. | 2016 | 504K |
[/expandsub1]
[/expand]
[expand title="E4 Search Coil Magnetometer" rel="E4" id="repo-E4"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| E4 Data ASCII.zip | All available original Helios 1 and 2 E4 experiment data | 1974- 1976 | 119M | ZIP |
| DdW_Helios_SC_ascii | Subdirectory with individual downloadable Helios 1 & 2 E4 data files, sorted by collection period. | Folder | ||
| HELIOS SC Data Format.pdf | Document describes the original format and storgage of the E4 averages dataset. | 1981 |
[expandsub1 title="Instrument Documentation" rel="E4"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| Description of Average Tapes of Experiment E4 | Document describes the original format and storgage of the E4 averages dataset. | 1981 | 263K | |
| Dynamic range definition for SCM: preliminary report | The purpose of this study is to use the search-coil and fluxgate data to estimate the expected level of magnetic field fluctuations for the Search-Coil Magnetometer (SCM) search-coil onboard the Solar Probe Plus mission, for distances ranging from 9 solar radii (0.044 AU) to 1 AU. | 2011 | 307K | |
| Helios1-Mean.pdf | Dynamic range definition for SCM: preliminary report FIGURE 1 | 2011 | 60K | |
| Helios1-Mean vs sensitivity.pdf | Dynamic range definition for SCM: preliminary report FIGURE 2 | 2011 | 191K | |
| SCM vs Helios gains.pdf | Dynamic range definition for SCM: preliminary report FIGURE 2 with some new markings | 2011 | 154K |
[/expandsub1]
[/expand]
[expand title="E5A Solar Wind Plasma Wave" rel="E5A" id="repo-E5A"]
Experiment E5A was done by researchers at the University of Iowa, to explored the electric component of plasma waves. Visit our E5A Plasma Wave Experiment page for an abridged description or visit the University of Iowa's E5A PLASMA WAVE EXPERIMENT for more information.
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| Science Summary | Webpage that summarizes the E5A plasma wave experiment | 1974 | - | Link |
| Final Report (1986).txt | The Final Report for the University of Iowa HELIOS Solar Wind Plasma Wave Experiment [E5A] supported under contract NAS5-11279 with Goddard Space Flight Center. | 1986 | 41K | TXT |
| Helios-1 readme.txt | This document describes the structure of the CDROM and file formats for Helios 1 E5A data | 6.6K | TXT | |
| Helios-2 readme.txt | This document describes the structure of the CDROM and file formats for Helios 2 E5A data | 6.6K | TXT |
[expandsub1 title="Index" rel="E5A"]
This subsection contains two cumulative index files, for Helios 1 & 2, which list the the location of all files on the disk.
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| Helios 1 index.txt | Text file that lists the available Helios 1 E5A data files | 3.2K | TXT | |
| Helios 2 index.txt | Text file that lists the available Helios 2 E5A data files | 1.7K | TXT |
[/expandsub1]
[expandsub1 title="Data" rel="E5A"]
This section breaks up the data by spacecraft. Both Helios 1 and Helios 2 contain 4 sub-directories named average, peak, vdiff and sn for corresponding data. The data in these sub- directories are organized in to different sub-directories according to the year and the month of the data. Each sub-directory contains all available data for a 3-month interval and is named ayymm-mm for Helios-1 and byymm-mm for Helios-2. where yy is year of the century and mm-mm is one of the following: 01-03 for January through March, 04-06 for April through June, 07-09 for July through September, 10-12 for October through December.
[expandsub2 title="Helios 1" rel="E5A"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| average/ | Link redirects you to the University of Iowa's HTTP site to select average data files | Folder | ||
| peak/ | Link redirects you to the University of Iowa's HTTP site to select peak data files | Folder | ||
| sn/ | Link redirects you to the University of Iowa's HTTP site to select sn data files | Folder | ||
| vdiff/ | Link redirects you to the University of Iowa's HTTP site to select vdiff data files | Folder |
[/expandsub2]
[expandsub2 title="Helios 2" rel="E5A"]
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| average/ | ||||
| peak/ | ||||
| sn/ | ||||
| vdiff/ |
[/expandsub2]
[/expandsub1]
[expandsub1 title="Doc" rel="E5A"]
This directory contains the documentary files for Helios 1 and 2.
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| helios1.txt | This document is the Final Report for the University of Iowa HELIOS Solar Wind Plasma Wave Experiment [E5a] supported under contract NAS5-11279 with Goddard Space Flight Center. | 41K | TXT | |
| helios2.txt | 2.5K | TXT | ||
| helios_a.cal | 11K | CAL | ||
| helios_b.cal | 11K | CAL | ||
| intro.txt | 1.9K | TXT | ||
| orbits.jpg | 35K | JPG |
[/expandsub1]
[/expand]
[expand title="E9 Zodiacal Light Photometer" id="repo-E9"]
| Title | Description | Date | Size | Type |
|---|---|---|---|---|
| Photometer_data_UCSD.zip | Available Helios 1 and 2 E9 data. Data was obtained from UCSD. | 422M | ZIP | |
| aa_meta.doc | 65K | DOC | ||
| ar/ | Subdirectory with Helios E9 individual data files. Can be a little slow to open. | - | Folder | |
| az/ | Subdirectory with Helios E9 individual data files. Can be a little slow to open. | - | Folder | |
| br/ | Subdirectory with Helios E9 individual data files. Can be a little slow to open. | - | Folder | |
| bz/ | Subdirectory with Helios E9 individual data files. Can be a little slow to open. | - | Folder | |
| herdisk | 465K | |||
| herdisk.exe | 601K | |||
| ihosread.f | 8.6K | |||
| pandora | 481K | |||
| pandora.exe | 625K |
[/expand]
[expand title = "All Other Experiments (E5B - E8, and E10)" id="repo-AOE"]
We do not have any data on this site for E5B, E5C, E6, E7, or E8. As we find and obtain the available files (data & documentation), they will be uploaded and documented on the respective experiment's page.
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| Raumfahrtsforschung E5B Electric Field Experiment (English) | Original instrument paper for experiment E5b, written in English. E5b is designed to measure electric fields in the frequency range of 0 to 200 kHz with high frequency resolution. It comprises three tunable plasma wave receivers, a fixed tuned (wide band) receiver, and a waveform sampler. These components are describes in details and block diagrams are presented. Finally the experiment operations and individual commands are discussed. | 1975 | 1.8M | |
| Raumfahrtsforschung E5C Radio Astronomy Experiment (English) | Original instrument paper for experiment E5C, written in English. The NASA Goddard Space Flight Center radio astronomy experiment, E5C, has sixteen observing frequencies over the range of 26.5 to 3000 kHz. The antenna consists of two extendible 15-m booms, forming an electric dipole, two high-impedance preamplifiers located at the root of the booms, and the 16-channel radiometer. Important informations about propagation conditions, such as absorption, scattering and refraction, are expected from observations of radio emission regionsat distances between 1 and 0.3 AU. | 1975 | 2.0M | |
| Raumfahrtsforschung E6 Cosmic-Ray Particles (German) | Original instrument paper for experiment E6, written in German. The University of Kiel Experiment on board the solar probe HEL/OS (Experiment No. 6) measures high energy charged cosmic ray particles of solar, planetary and galactic origin in interplanetary space. Within the Earth orbit the interplanetary space will be investigated down to distances of 0.3 AU from the Sun. | 1975 | 4.3M | |
| Raumfahrtsforschung E7 Cosmic Ray Instrument (English) | Original instrument paper for experiment E7, written in English. This paper describes the design and performance of a cosmicray particle experiment, E7. Both sets of missions use several solid-state detector telescopes to measure protons from ~ 100 KeV to ~ 800 MeV per nucleon. Additionally, E7 includes a proportional counter to monitor the solar X-ray activity. | 1975 | 2.0M | |
| Raumfahrtsforschung E8 Low Energy Electron and Proton Detector (German) | Original instrument paper for experiment E8, written in German. The purpose of E8 is to investigate the origin of low-energy electrons and protons and their distribution mechanism. E8 is comprised of three separate units: the magneto-spectrometer, the analog electronics unit, and the digital electronics unit. The design is described in detail and first flight results are presented. | 1975 | 3.3M | |
| Raumfahrtsforschung E10 Micrometeroid (Dust) Detector and Analyzer (German) | Original instrument paper for experiment E10, written in German. The micrometeoroid experiment aims to measure mass, speed, direction, chemical composition, and charge of cosmic dust particles. They are detected by the plasma produced upon impact on a solid target. The mounting of the experiment sensors to the spacecraft is shown. The measuring principle of the experiment is explained by discussing the schematic cross section of its sensors. Special attention is given to the interpretation of the quantities measured, which is needed to derive the informations on the micrometeoroids mentioned above. Also the sensitivity range of the experiment is shown. | 1975 | 2.0M |
[/expand]
[expand title = "Helios Cologne Mini-Workshop 2016" id="repo-workshop"]
A Mini-Workshop was held at Cologne University in June of 2016 to discuss the 1970's Helios space missions. At this workshop a lot of important, previously unavailable, information was presented and discussed. The following talks/presentations were collected from the mini-workshop by Lex Wennmacher.
| Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|
| HeliosMiniWorkshop Agenda | Agenda for the 2016 Cologne MiniWorkshop -- schedule of talks. | 2016 | 75K | |
| HeliosMiniWorkshop Participants.docx | List of Cologne MiniWorkshop participants. | 2016 | 52K | DOCX |
| HeliosMiniWorkshop Participants.pdf | List of Cologne MiniWorkshop participants. | 2016 | 64K |
[expandsub1 title="Monday Talks"]
| Author | Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|---|
| Thierry Dudok de Wit | Solar Probe Plus: a mission to touch the Sun... | Presentation on Solar Probe Plus mission and relevance of the Helios 1 & 2 mission data. | 2016 | 21M | |
| Milan Maksimovi | Solar Orbiter Exploring the Sun-Heliosphere Connection | Presentation on Solar Orbiter spacecraft and mission. | 2016 | 9.0M | |
| F M Neubauer | The Technical University of Braunschweig (TU-BS) Magnetometer Experiment E2 (Fluxgate) Onboard Helios 1 and 2 | The objective of this presentation is to provide information on the Helios fluxgate magnetometer E2 data. Written information unfortunately partly incomplete because of accidental losses of printed documentation. Thus some of the information is available in print and some from memory only. | 2016 | 6.8M | |
| F M Neubauer | The Helios Mission | Agenda: Historical remarks, Experiments, Orbital Information, Spacecraft, Conclusions. Note that some of the information used is not available in written documentation any more and I had to rely on my memory and sometimes of others. | 2016 | 4.0M | |
| Chadi Salem | The Legacy of HELIOS: Why is Helios Important Now and Creation of a Universal Archive at NASA | This presentation provides a brief summary of the Helios Mission, talks about the relevance to Parker Solar Probe (PSP) and Solar Orbiter, and describes some preliminary work done on a NASA funded project to aggregate, analyze, document, and archive the Helios Mission data. | 2016 | 4.2M | |
| Lex Wennmacher | E2 data history, format, and availability | This talk provides a historic overview and technical details pertaining to the current state of the Helios Mission E2 Data. | 2016 | 2.9M |
[/expandsub1]
[expandsub1 title="Tuesday Talks"]
| Author | Title | Description/Abstract | Date | Size | Type |
|---|---|---|---|---|---|
| Supratik Banerjee | Compressible MHD Turbulence: A Source of Heating in the Fast Solar Wind | This presentation begins with a slide about the anomalous temperature profile of the solar wind, follwed by slides discussing a heating source and plasma turbulence. | 2016 | 644K | |
| Roberto Bruno | The Rome‐GSFC magnetometer E3 onboard Helios | This document gives an overview of the Rome-GSFC magnetic field experiment, E3, and the corresponding available data. | 2016 | 504K | |
| Thierry Dudok de Wit | HELIOS Search Coil E4: open questions | A technical presentation that analyzes the available E4 data, beginning with a comparison of E2 and E4 data readings. Several graphs are used to visuallize the E4 data. | 2016 | 8.3M | |
| Lorenzo Matteini | Alfvénic fluctuations, velocity spikes, and predicting observations close to the Sun | How Helios still surprises us after 40 years! Helios data still offer us new results and unique view of inner Heliosphere. Velocity enhancements up to 1000km/s at 0.3AU. Short-living, high-resolution magnetic field show spikes of few seconds Consequence on particle measurements, VDFs are not trivial to fit during large B rotations Solar origin of spikes? Signatures of velocity shears in the corona? Intermittent SW acceleration? | 2016 | 3.8M | |
| F M Neubauer | The Technical University of Braunschweig (TU-BS) Magnetometer Experiment E4 (Search-Coil) Onboard Helios 1 and 2 | The objective of this presentation is to provide information for use of Helios search-coil magnetometer E4 data. Written information unfortunately partly incomplete because of accidental losses of printed documentation. Thus some of the information is available in print and some from memory only. | 2016 | 11M | |
Anne Schreiner & Joachim Saur | Dissipation Model for Solar Wind Turbulence at Electron Scales | Under the assumption of critically balanced turbulence and KAW damping: Good agreement of model and observations at electron scales, KAW damping leads to ’quasi’ exponentially shaped dissipation range, Dissipation length is related to the electron gyroradius, Dissipation length is independent of the energy cascade rate. | 2016 | 722K | |
| Jan Steinhagen | Revisiting HELIOS: The Magnetic Field Data | This document discusses the Helios Mission magnetic field data (E1 - E4) and summarizes some of the problems/anomolies with the available data. | 2016 | 4.3M | |
| Lex Wennmacher | E4 data availability | Documents the availability and format of the E4 data. Includes several plots showing the available data and more importantly gaps in the E4 data. | 2016 | 848K | |
| Lex Wennmacher | E4 data | High quality PDF (large size for a PDF, is a little sluggish when opened) containing several graphs/plots of the available E4 data. | 2016 | 66M | |
| Lex Wennmacher | Helios Spice kernels | The need for precise and continous Helios 1 & 2 orbit data arose in 2010 No high prescision orbit information, for the Helios spacecrafts, is available Low-precision daily position information for Helios 1 and 2, is available from (NSSDC) I then started a small project to reconstruct the Helios 1 & 2 orbits from this information As format of the resulting product I chose Spice SPK kernels | 2016 | 1.2M |
[/expandsub1]
[expandsub1 title="Wednesday Talks"]
This day facilitated conversations on the state of the Helios mission data: (1) A summary of the talks from the previous two days, and (2) a discussion of the archiving process for the entire in-situ Helios data set and an exhaustive action item list on how to move forward.
[/expandsub1]
[/expand]
[expand title = "Helios Orbits"]
[/expand]
[expand title = "Miscellaneous Files" id="repo-misc"]
This section contains documents that: (1) may be useful to multiple experiments, (2) not apply to any experiment in particular, (3) are in the process of being organized and (4) may be redundant copies if any of the previous cases apply.
| Title | Description | Date | Size | Type |
|---|---|---|---|---|
| 10 Jahre Helios.pdf | 1984 | 110M | ||
| Salem, Imperial College Presentation: The Legacy of the Inner Heliospheric Mission HELIOS | 2016 | 7.7M | ||
| Marsch_Helios informal talk.pdf | 2016 | 3.0M |
[expandsub1 title="Original Instrument Papers"]
The following is a collection of the original Helios experiments' instrument papers. All documents are titled Raumfahrtsforshung followed by a descriptor of what they cover - the German word Raumfahrtsforshung translates to Space Research. These documents contain images of the experiment instruments before the spacecrafts were launched!
| Title | Description | Date | Size | Type |
|---|---|---|---|---|
| Raumfahrtsforschung Typenblätter Helios.pdf | 1975 | 2.6M | ||
| Raumfahrtforschung Helios-Sonde.pdf | 1975 | 2.4M | ||
| Raumfahrtsforschung E1.pdf | 1975 | 5.6M | ||
| Raumfahrtsforschung E2.pdf | 1975 | 4.5M | ||
| Raumfahrtsforschung E3.pdf | 1975 | 2.5M | ||
| Raumfahrtsforschung E4.pdf | 1975 | 3.3M | ||
| Raumfahrtsforschung E5a.pdf | 1975 | 2.0M | ||
| Raumfahrtsforschung E5b.pdf | 1975 | 1.8M | ||
| Raumfahrtsforschung E5c.pdf | 1975 | 2.0M | ||
| Raumfahrtsforschung E6.pdf | 1975 | 4.3M | ||
| Raumfahrtsforschung E7.pdf | 1975 | 2.0M | ||
| Raumfahrtsforschung E8.pdf | 1975 | 2.0M | ||
| Raumfahrtsforschung E9.pdf | 1975 | 2.8M | ||
| Raumfahrtsforschung E10.pdf | 1975 | 1.2M |
[/expandsub1]
[expandsub1 title="University of Köln IGM Scans"]
The following are miscellaneous scans of Helios mission documents courtesy of the University of Cologne (Köln).
| Title | Description | Date | Size | Type |
|---|---|---|---|---|
| Barnstorf_1980.pdf | German documentation about E2 and E4 from the IGM at TU-BS | 1980 | 84M | |
| Beinroth_1982.pdf | German documentation from the IGM at TU-BS | 1982 | 89M | |
| Bordrechner_Helios_E2_und_E4.pdf | 1976 | 2.3M | ||
| Dehmel-Aufbau_und_Betrieb.pdf | 1977 | 37M | ||
| Dehmel-Elektronik_des_Induktionsspulenmagnetometers.pdf | 1975 | 3.9M | ||
| Dehmel-Induktionsspulenmagnetometer.pdf | 1975 | 3.4M | ||
| Dehmel.pdf | 1975 | 5.5M | ||
| Dehmel_Magnetometer_E4.pdf | 1975 | 2.6M | ||
| Denskat-Untersuchung_von_alfvenischen_Fluktuationen_im_Sonnenwind.pdf | 1975 | 70M | ||
| Forschungsbericht_W_81-039.pdf | 1981 | 48M | ||
| Helios-Interplanetary_Experience.pdf | A summarization of the GSOC experience gained in the cooperative US/German interplanetary project HELIOS. | 1977 | 77M | |
| Musmann+Maier_Förstersondenexperiment_E2_in_Helios_A_und_B.pdf | German documentation | 1972 | 53M |
[/expandsub1]
[expandsub1 title="Science Papers"]
This section contains scientific papers about the Helios mission/experiments and scientific papers that use the Helios mission data. These documents range from the 1970's to the 1990's.
[expandsub2 title="Dissertations"]
| Title | Description | Date | Size | Type |
|---|---|---|---|---|
| Beobachtungen und Analyse plasmaphysikalischer Prozesse im Sonnenwind unter spezieller Ber�cksichtigung von a-Teilchen und schweren Ionen von Shuhui Liu.pdf | Observations and analysis of plasma physical processes in the solar wind with special consideration of a-particles and heavy ions by Shuhui Liu | 1994 | 43M | |
| Die Struktur magnetischer Wolken im Sonnenwind Volker Bothmer.pdf | The structure of magnetic clouds in the solar wind by Volker Bothmer | 1993 | 54M | |
| Hatzky_diss_v2.pdf | Angular distributions of high-energy charged particles and the scattering properties of the interplanetary medium by Roman Hatzky | 1996 | 2.6M | |
| Kevin Ivory- Suprathermische Elektronen im Sonnenwind als Indikatoren au�ergew�hnlicher Magnetfeldstrukturen der inneren Heliosph�re.pdf | Suprathermic electrons in the solar wind as indicators of extraordinary magnetic field structures in the inner heliosphere by Kevin Ivory | 1999 | 32M | |
| Kinetische Plasmaprozesse und Welle-Teilchen-Wechselwirkung von Ionen im schnellen Sonnenwind ( von Michael Heuer).pdf | Kinetic plasma processes and wave-particle interaction of ions in the fast solar wind by Michael Heuer | 2005 | 35M | |
| Stromschichten im Interplanetaren Plasma von Henning Barnstorf.pdf | Current layers in the interplanetary plasma by Henning Barnstorf | 1980 | 38M | |
| Untersuchung der Nichtgyrotropie und der Ausbreitung von elektromagnetischen Wellen von Hern�n F. Astudillo Parra.pdf | Study of the non-gyrotropy and the propagation of electromagnetic waves by Hern n F. Astudillo Parra | 1994 | 33M | |
| Untersuchung von alfvenischen Fluktuationen im Sonnenwind (von Kurt Ulrich Denskat).pdf | Investigation of Alfvenic fluctuations in the solar wind by Kurt Ulrich Denskat | 1982 | 37M | |
| Zusammenh�nge zwischen raum-zeitlichen Strukturen im Sonnenwind und seinen Quellgebieten in der Korona- Kirsten Marina Thieme.pdf | Relationships between spatio-temporal structures in the solar wind and its source areas in the Korona by Kirsten Marina Thieme | 1990 | 43M |
[/expandsub2]
[expandsub2 title="Preliminary Results - Journal of Geophysics"]
[/expandsub2]
[expandsub2 title="Papers using Helios Data"]
These scientific papers used the Helios mission datasets.
[/expandsub2]
[/expandsub1]
[/expand]