!@.qfd@QIE V_4.0.19 [Dec 2016] !------------------- QSAS ASCII File -------------------| ! Free width data entries separated by delimiters | ! | ! ASCII Format | ! Native C ordering, last index varies fastest | ! Blank lines are ignored | ! "!" escapes rest of line as comment | !-------------------------------------------------------| File_type = d FILE_NAME = helios_corefit.qfh ! ! Attribute_delimiter = , Data_delimiter = , ! ! START_META = CDF_Generation Number_of_entries = 2 Entry = Translated from ascii csv file using Qtran with qfh header helios_corefit.qfh Entry = qfh written by Steve Schwartz END_META = CDF_Generation ! START_META = MISSION Entry = Helios END_META = MISSION START_META = MISSION_DESCRIPTION Number_of_entries = 2 Entry = The Helios mission consisted of two spacecraft that were used to make in-situ observations of the inner heliosphere. Entry = Helios 1 was launched on December 10, 1974, and Helios 2 on January 15, 1976. The orbits of the Helios 1 and 2 spacecraft had periods of 190 and 187 days, aphelia of 0.99 and 0.98 AU, and perihelia of 0.31 and 0.29 AU, respectively. END_META = MISSION_DESCRIPTION START_META = MISSION_TIME_SPAN VALUE_TYPE = ISO_TIME_RANGE ENTRY = 1974-12-10T00:00:00Z/1985-02-18T23:59:59Z END_META = MISSION_TIME_SPAN START_META = MISSION_REFERENCES Number_of_entries = 2 Entry = Helios data archive: http://helios-data.ssl.berkeley.edu/ Entry = Paper describing plasma instrumentation and initial mission results: http://onlinelibrary.wiley.com/doi/10.1029/JA087iA01p00052/abstract END_META = MISSION_REFERENCES START_META = OBSERVATORY Entry = Helios 1 or 2 END_META = OBSERVATORY START_META = DATASET_ID Entry = Helios proton core parameters from 3D bi-Maxwellian fits END_META = DATASET_ID START_META = DATASET_DESCRIPTION Number_of_entries = 4 Entry = Plasma moments and magnetic field from Helios. Entry = Moments from 3D velocity-space fits carried out by David Stansby, Imperial College London, with help from Chadi Salem (UCL Berkeley), Tim Horbury (Imperial College), and Lorenzo Matteini (LESIA Paris) Entry = The fits were done using bi-Maxwellian distribution functions and the fit parameters characterise the proton core population of the solar wind. Entry = Original data was taken from 3D distribution function files. END_META = DATASET_DESCRIPTION START_META = CONTACT_COORDINATES Number_of_entries = 2 Entry = David Stansby END_META = CONTACT_COORDINATES START_META = ACKNOWLEDGEMENT Entry = Please acknowledge Helios instrument teams and David Stansby in any publication. END_META = ACKNOWLEDGEMENT START_META = VERSION_NUMBER Entry = Version 1.0 END_META = VERSION_NUMBER START_META = GENERATION_DATE Entry = Generated August 2017 END_META = GENERATION_DATE ! ! Data variables !!!!!!!!!!!!!!!!!! ! START_VARIABLE = time_tags_Helios VALUE_TYPE = ISO_TIME PARAMETER_TYPE = Support_Data CATDESC = UTC start time of 40.5s integration period, apparently truncated to whole seconds. UNITS = s SI_CONVERSION = 1>s DELTA_PLUS = 40.5 DELTA_MINUS = 0 SIGNIFICANT_DIGITS = 24 FILLVAL = 1900-01-01 00:00:00 FIELDNAM = Helios Time LABLAXIS = UTC END_VARIABLE = time_tags_Helios START_VARIABLE = B_inst VALUE_TYPE = INT PARAMETER_TYPE = Support_Data CATDESC = Helios magnetic field instrument. A value of 0 means no magnetic field data available, 1 means E3 magnetometer data used, 2 means E2 magnetometer data used. UNITS = Unitless SI_CONVERSION = 1>unitless SIGNIFICANT_DIGITS = 8 FILLVAL = -1 FIELDNAM = Helios B instrument LABLAXIS = B instr FRAME = scalar>na DEPEND_0 = time_tags_Helios SCALETYP = Linear DISPLAYTYPE = Time_Series END_VARIABLE = B_inst START_VARIABLE = B_rtn SIZES = 3 VALUE_TYPE = DOUBLE PARAMETER_TYPE = Data CATDESC = Helios magnetic field data averaged over the interval during which the ion distribution function was measured. See the variable 'B_inst' to determine which magnetometer the values are taken from. UNITS = nT SI_CONVERSION = 1.e-9>T SIGNIFICANT_DIGITS = 6 FILLVAL = NaN FIELDNAM = Helios magnetic field LABLAXIS = B DEPEND_0 = time_tags_Helios SCALETYP = Linear DISPLAYTYPE = Time_Series LABEL_1 = lab_b_rtn TENSOR_ORDER = 1 COORDINATE_SYSTEM = RTN>Heliocentric Ecliptic RTN at Spacecraft REPRESENTATION_1 = rep_xyz END_VARIABLE = B_rtn START_VARIABLE = SIGMA_B VALUE_TYPE = DOUBLE PARAMETER_TYPE = Data CATDESC = Helios std dev of B UNITS = nT SI_CONVERSION = 1.0e-9>T SIGNIFICANT_DIGITS = 6 FILLVAL = NaN FIELDNAM = Helios sigma_B LABLAXIS = sigma_B FRAME = scalar>na DEPEND_0 = time_tags_Helios SCALETYP = Log DISPLAYTYPE = Time_Series END_VARIABLE = SIGMA_B START_VARIABLE = ion_inst VALUE_TYPE = INT PARAMETER_TYPE = Support_Data CATDESC = Instrument that measured the original velocity distribution function. A value of 1 means the I1a instrument, 2 means the I1b instrument. UNITS = Unitless SI_CONVERSION = 1>unitless SIGNIFICANT_DIGITS = 8 FILLVAL = -1 FIELDNAM = Helios ion instrument LABLAXIS = Ion instr FRAME = scalar>na DEPEND_0 = time_tags_Helios SCALETYP = Linear DISPLAYTYPE = Time_Series END_VARIABLE = ion_inst START_VARIABLE = STATUS VALUE_TYPE = INT PARAMETER_TYPE = Support_Data CATDESC = Bi-maxwellian fit status. A value of 1 means a successful fit, 2 means a successful fit without available magnetic field data, 3 means fitting to the distribution function failed. UNITS = Unitless SI_CONVERSION = 1>unitless SIGNIFICANT_DIGITS = 8 FILLVAL = -1 FIELDNAM = Helios status LABLAXIS = Helios status FRAME = scalar>na DEPEND_0 = time_tags_Helios SCALETYP = Linear DISPLAYTYPE = Time_Series END_VARIABLE = STATUS START_VARIABLE = Tp_par VALUE_TYPE = DOUBLE PARAMETER_TYPE = Data CATDESC = Helios parallel proton core temperature from bi-Maxwellian fits to 3D distribution functions UNITS = K SI_CONVERSION = 1.0>K SIGNIFICANT_DIGITS = 6 FILLVAL = NaN FIELDNAM = Helios Tp_par LABLAXIS = Tp_para FRAME = scalar>na DEPEND_0 = time_tags_Helios SCALETYP = Log DISPLAYTYPE = Time_Series END_VARIABLE = Tp_par START_VARIABLE = Tp_perp VALUE_TYPE = DOUBLE PARAMETER_TYPE = Data CATDESC = Helios perpendicular proton core temperature from bi-Maxwellian fits to 3D distribution functions UNITS = K SI_CONVERSION = 1.0>K SIGNIFICANT_DIGITS = 6 FILLVAL = NaN FIELDNAM = Helios Tp_perp LABLAXIS = Tp_perp FRAME = scalar>na DEPEND_0 = time_tags_Helios SCALETYP = Log DISPLAYTYPE = Time_Series END_VARIABLE = Tp_perp START_VARIABLE = CARROT VALUE_TYPE = INT PARAMETER_TYPE = Support_Data CATDESC = Helios Carrington Rotation UNITS = Unitless SI_CONVERSION = 1>unitless SIGNIFICANT_DIGITS = 4 FILLVAL = -1 FIELDNAM = Helios Carrington Rotation LABLAXIS = Carrington Rot FRAME = scalar>na DEPEND_0 = time_tags_Helios SCALETYP = Linear DISPLAYTYPE = Time_Series END_VARIABLE = CARROT START_VARIABLE = Helios_position SIZES = 3 VALUE_TYPE = DOUBLE PARAMETER_TYPE = Data CATDESC = Helios position in heliocentric r, carrington lat and long UNITS = units_r_rlp SI_CONVERSION = siconv_r_rlp SIGNIFICANT_DIGITS = 17 FILLVAL = NaN FIELDNAM = Helios pos LABLAXIS = Helios Carrington Pos LABEL_1 = lab_r_rlp !FRAME = vector>gse_xyz DEPEND_0 = time_tags_Helios SCALETYP = Linear DISPLAYTYPE = Time_Series TENSOR_ORDER = 1 COORDINATE_SYSTEM = CAR>Heliocentric Carrington coordinates REPRESENTATION_1 = rep_rlp END_VARIABLE = Helios_position START_VARIABLE = EARTH_HELIOS_ANGLE VALUE_TYPE = DOUBLE PARAMETER_TYPE = Data CATDESC = Angle between Sun-Earth and Sun-Helios position vectors, measured in the direction of the Earth's orbit around the Sun UNITS = deg SI_CONVERSION = 1.0>degree SIGNIFICANT_DIGITS = 17 FILLVAL = NaN FIELDNAM = Earth-Helios angle LABLAXIS = Earth-Hel angle FRAME = scalar>na DEPEND_0 = time_tags_Helios SCALETYP = Linear DISPLAYTYPE = Time_Series END_VARIABLE = EARTH_HELIOS_ANGLE START_VARIABLE = np VALUE_TYPE = DOUBLE PARAMETER_TYPE = Data CATDESC = Helios proton core density from bi-Maxwellian fits to 3D distribution functions UNITS = cm^-3 SI_CONVERSION = 1.0e6>m^-3 SIGNIFICANT_DIGITS = 6 FILLVAL = NaN FIELDNAM = Helios np LABLAXIS = np FRAME = scalar>na DEPEND_0 = time_tags_Helios SCALETYP = Linear DISPLAYTYPE = Time_Series END_VARIABLE = np START_VARIABLE = vp_rtn SIZES = 3 VALUE_TYPE = DOUBLE PARAMETER_TYPE = Data CATDESC = Helios proton core velocity from bi-Maxwellian fits to 3D distribution functions UNITS = km/s SI_CONVERSION = 1000>m s^-1 SIGNIFICANT_DIGITS = 6 FILLVAL = NaN FIELDNAM = Helios proton velocity LABLAXIS = Vp DEPEND_0 = time_tags_Helios SCALETYP = Linear DISPLAYTYPE = Time_Series LABEL_1 = lab_v_rtn TENSOR_ORDER = 1 COORDINATE_SYSTEM = RTN>Heliocentric Ecliptic RTN at Spacecraft REPRESENTATION_1 = rep_xyz END_VARIABLE = vp_rtn START_VARIABLE = vth_p_par VALUE_TYPE = DOUBLE PARAMETER_TYPE = Data CATDESC = Helios parallel proton core thermal speed from bi-Maxwellian fits to 3D distribution functions UNITS = km/s SI_CONVERSION = 1000>m s^-1 SIGNIFICANT_DIGITS = 6 FILLVAL = NaN FIELDNAM = Helios Vth_p_par LABLAXIS = Vth_p_par FRAME = scalar>na DEPEND_0 = time_tags_Helios SCALETYP = Log DISPLAYTYPE = Time_Series END_VARIABLE = vth_p_par START_VARIABLE = vth_p_perp VALUE_TYPE = DOUBLE PARAMETER_TYPE = Data CATDESC = Helios perpendicular proton core thermal speed from bi-Maxwellian fits to 3D distribution functions UNITS = km/s SI_CONVERSION = 1000>m s^-1 SIGNIFICANT_DIGITS = 6 FILLVAL = NaN FIELDNAM = Helios Vth_p_perp LABLAXIS = Vth_p_perp FRAME = scalar>na DEPEND_0 = time_tags_Helios SCALETYP = Log DISPLAYTYPE = Time_Series END_VARIABLE = vth_p_perp START_VARIABLE=rep_xyz PARAMETER_TYPE = Support_data VALUE_TYPE = CHAR SIZES = 3 DATA = "x", "y", "z" END_VARIABLE = rep_xyz START_VARIABLE=rep_rlp PARAMETER_TYPE = Support_data VALUE_TYPE = CHAR SIZES = 3 DATA = "r", "l", "p" END_VARIABLE = rep_xyz START_VARIABLE=lab_b_rtn PARAMETER_TYPE = Support_data VALUE_TYPE = CHAR SIZES = 3 DATA = "Br", "Bt", "Bn" END_VARIABLE = lab_b_rtn START_VARIABLE=lab_r_rlp PARAMETER_TYPE = Support_data VALUE_TYPE = CHAR SIZES = 3 DATA = "r", "lat", "long" END_VARIABLE = lab_r_rlp START_VARIABLE=siconv_r_rlp PARAMETER_TYPE = Support_data VALUE_TYPE = CHAR SIZES = 3 DATA = "1.49598e+11>m", "1>degree", "1>degree" END_VARIABLE = siconv_r_rlp START_VARIABLE=lab_v_rtn PARAMETER_TYPE = Support_data VALUE_TYPE = CHAR SIZES = 3 DATA = "Vp_r", "Vp_t", "Vp_n" END_VARIABLE = lab_v_rtn START_VARIABLE=units_r_rlp PARAMETER_TYPE = Support_data VALUE_TYPE = CHAR SIZES = 3 DATA = "AU", "deg", "deg" END_VARIABLE = units_r_rlp !Start_data = 00 ! unknown number of records START_AFTER = "Time"