2.2.9 spase://NASA/NumericalData/IMP8/EECA/PT11M IMP 8 UMD EECA 10.92m Rates, PHA 2021-03-11T18:39:11Z This data set, from the Electrostatic Energy-Charge Analyzer (EECA) part of the U. Maryland experiment on IMP 8, contains count rate and pulse height data enabling the computation of 10.92-min resolution fluxes of: singly ionized ions in 5 energy/charge windows of lower limits between 130 and 740 keV/Q; doubly charged ions in the same 5 keV/Q windows plus another at 65 keV/Q; ions with charge states between 5 and 8 in the same 6 keV/Q windows as for doubly charged ions plus another at 37 keV/Q; ions with charge states above about 10 at 37 and 65 keV/Q windows; 600-860 keV electrons. Some of the modes are spin integrated while others are given in 90 deg quadrants about the spacecraft spin vector (which is normal to the ecliptic plane). The data set was created at NSSDC from the U.Md.-provided "summary tapes" (NSSDC IDs SPHE-00170 and 73-078A-03C) by dropping engineering data, dropping data from the ULET portion of the overall experiment (the ULET instrument failed in 1978), and converting the remaining time, spacecraft position, and EECA instrument data from binary to ASCII representation. The data are available via ftp in 1- month files of variable lengths in the 3-6 MB size range. Please acknowledge the successive PI's George Gloeckler, and Fred Ipavich. spase://SMWG/Person/George.Gloeckler PrincipalInvestigator spase://SMWG/Person/Fred.M.Ipavich PrincipalInvestigator NSSDC Data Set Catalog https://spdf.gsfc.nasa.gov/pub/documents/old/documentation_from_nssdc/dataset_catalogs/DSC_0476.pdf See especially the instrument-team-generated descriptive material on the experiment and data inside the Data Set Catalog spase://VEPO/NumericalData/IMP8/EECA/PT11M spase://VSPO/NumericalData/IMP8/EECA/PT11M spase://SMWG/Repository/NASA/GSFC/SPDF Online Open FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/imp/imp8/particles_umd/11min_ascii/ monthly ASCII files via ftp HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/imp/imp8/particles_umd/11min_ascii/ In CDF via HTTP from SPDF Text 1.5 GB Please acknowledge the successive PI's, George Gloeckler, Fred Ipavich, and NSSDC and SPDF. Uncalibrated spase://SMWG/Instrument/IMP8/EECA EnergeticParticles 1973-11-01T00:00:00 2001-10-26T00:00:00 PT11M Heliosphere.NearEarth Earth.Magnetosphere.Magnetotail Spin Integrated Counts This parameter contains five data words for each of six charge state - energy/charge (or species - energy range) combinations. The five words are (a) number of good readouts, (b) number of bad readouts, (c) total spin-integrated counts, (d) sum of squares of readout-specific counts, (e) accumulation times in seconds. Charge state - energy/charge and species - energy range combinations are specified in the "elements" below, where only the "counts" word is called out explicitly. PT11M 6 5 Array of the 5 words defined above for each of the 6 charge state - energy/charge (or species - energy range) combinations listed in the element names below. Counts of Q.GE.1, 160-230 keV/Q ions 1 3 Column_30 counts Counts of Q.GE.2, 550-900 keV/Q ions 2 3 Column_35 counts Counts of Q.GE.4, 65-100 keV/Q ions 3 3 Column_40 counts Counts of protons .GE. 18 MeV 4 3 Column_45 counts Counts of protons .GE. 6 MeV 5 3 Column_50 counts Counts of electrons 600-860 keV 6 3 Column_55 counts Ion Average Counts 65 900 keV/Q Sectored and spin-integrated Counts This parameter contains nine data words for each of nine charge state - energy/charge (or species - energy range) combinations. The nine words are (a) number of good readouts, (b) number of bad readouts, (c) total spin-integrated counts for all readouts and sectors, (d) sum of squares of readout-specific, sector-specific counts, (e) accumulation time per sector, in seconds, (f) total counts in 90-deg sector 1, (g ) total counts in 90-deg sector 2, (h) total counts in 90-deg sector 3, (i) total counts in 90-deg sector 4. Charge state - energy/charge combinations are specified in the "elements" below, where only the "sector 1 counts" word is called out explicitly. PT11M 9 9 Array of the 9 words defined above for each of the 9 charge state - energy/charge combinations listed in the element names below. Sector 1 counts of Q.GE.1, .GE.160 keV/Q ions 1 6 Column_63 counts Sector 1 Counts of Q.GE.1, 550-900 keV/Q ions 2 6 Column_72 counts Sector 1 counts of Q.GE.1, 390-600 keV/Q ions 3 6 Column_81 counts Sector 1 counts of Q.GE.1, 130-210 keV/Q ions 4 6 Column_90 counts Sector 1 Counts of Q.GE.4, 390-600 keV/Q 5 6 Column_99 counts Sector 1 Counts of 600-860 keV electrons 6 6 Column_108 counts Sector 1 Counts of Q.GE.1, 740-1200 keV/Q 7 6 Column_117 counts Sector 1 Counts of Q.GE.2, 65-100 keV/Q 8 6 Column_126 counts Sector 1 Counts of Q.GE.6, 37-55 keV/Q 9 6 Column_135 counts Ion Average Counts 65 900 keV/Q Distribution of arrival directions of pulse-height-analyzed particles This parameter contains ten data words for each of ten charge state - energy/charge combinations. (For each particle analyzed, maximum of one per 1.28s, the spacecraft spin phase to the nearest 45 deg is captured.) The ten words are (a) number of legal events, (b) number of illegal events, (c through j) counts of events analyzed in sectors 0 through 7, respectively. Charge state - energy/charge combinations are specified in the "elements" below, where only the "sector 0 counts of events analyzed" word is called out explicitly. PT11M 10 10 Array of the 10 words defined above for each of the 10 charge state - energy/charge combinations listed in the element names below. Sector 0 counts of Q.GE.6, 37-55 keV/Q ions analyzed (P1) 1 3 Column_140 counts Sector 0 counts of Q.GE.2, 65-100 keV/Q ions analyzed (P2) 2 3 Column_150 counts Sector 0 counts of Q.GE.4, 65-100 keV/Q ions analyzed (P2") 3 3 Column_160 counts Sector 0 counts of Q.GE.1, 130-210 keV/Q ions analyzed (P3) 4 3 Column_170 counts Sector 0 counts of Q.GE.1, 160-230 keV/Q ions analyzed (P4) 5 3 Column_180 counts Sector 0 counts of Q.GE.1, .GE.160 keV/Q ions analyzed (P5) 6 3 Column_190 counts Sector 0 counts of Q.GE.1, 390-600 keV/Q ions analyzed(P6) 7 3 Column_200 counts Sector 0 counts of Q.GE.1, 550-900 keV/Q ions analyzed (P7) 8 3 Column_210 counts Sector 0 counts of Q.GE.2, 550-900 keV/Q ions analyzed(P7') 9 3 Column_220 counts Sector 0 counts of Q.GE.1, 740-1200 keV/Q ions analyzed (P8) 10 3 Column_230 counts Ion Average Counts 37 1200 keV/Q Counts of events analyzed, by event type and charge group This parameter contains 33 counts of events analyzed, after pulse height analysis has enabled charge group separations for each of the ten "event types" listed in the preceding parameter array; see the names of the elements of that array for the event type labels (e.g., P1) used below. Note that of the 33 event counts, only 20 correspond to meaningful charge groups, while 13 correspond to background rates that are labelled as BG-low (low discriminator channels) or BG-High (high discriminator channels). Above-referenced documentation contains a mapping of discriminator channels to charge groups and background effect, for each of the 10 "event types." Spin phase information is not retained in these 33 event counts. PT11M 33 List of 33 counts of events analyzed, by event type and charge group Counts of events analyzed, P1, Q:5-8 1 Column_238 counts Counts of events analyzed, P1, Q.GE.13 2 Column_239 counts Counts of events analyzed, P1, BG-Low 3 Column_240 counts Counts of events analyzed, P1, BG-High 4 Column_241 counts Counts of events analyzed, P2, Q=2 5 Column_242 counts Counts of events analyzed, P2, BG-Low 6 Column_243 counts Counts of events analyzed, P2", Q:5-8 7 Column_244 counts Counts of events analyzed, P2", Q.GE.13 8 Column_245 counts Counts of events analyzed, P2", BG-High 9 Column_246 counts Counts of events analyzed, P3, Q=1 10 Column_247 counts Counts of events analyzed, P3, Q=2 11 Column_248 counts Counts of events analyzed, P3, Q:5-8 12 Column_249 counts Counts of events analyzed, P3, BG-High 13 Column_250 counts Counts of events analyzed, P4, Q=1 14 Column_251 counts Counts of events analyzed, P4, Q=2 15 Column_252 counts Counts of events analyzed, P4, Q:5-8 16 Column_253 counts Counts of events analyzed, P4, BG-High 17 Column_254 counts Counts of events analyzed, P5, BG-Low 18 Column_255 counts Counts of events analyzed, P5, BG-High 19 Column_256 counts Counts of events analyzed, P6, Q=1 20 Column_257 counts Counts of events analyzed, P6, Q=2 21 Column_258 counts Counts of events analyzed, P6, Q:5-8 22 Column_259 counts Counts of events analyzed, P6, BG-Low 23 Column_260 counts Counts of events analyzed, P6, BG-High 24 Column_261 counts Counts of events analyzed, P7, Q=1 25 Column_262 counts Counts of events analyzed, P7', Q=2 26 Column_263 counts Counts of events analyzed, P7', Q:5-8 27 Column_264 counts Counts of events analyzed, P7', BG-High 28 Column_265 counts Counts of events analyzed, P8, Q=1 29 Column_266 counts Counts of events analyzed, P8, Q=2 30 Column_267 counts Counts of events analyzed, P8, Q:5-8 31 Column_268 counts Counts of events analyzed, P8, BG-Low 32 Column_269 counts Counts of events analyzed, P8, BG-High 33 Column_270 counts Ion Average Counts 37 1200 keV/Q Spacecraft position vector GSE X,Y,Z components of spacecraft position vector, in km. PT11M 3 GSE X,Y,Z components of spacecraft position vector, in km. X Component, GSE Component.I 1 Column_07 km Y Component, GSE Component.J 2 Column_08 km Z Component, GSE Component.K 3 Column_09 km Positional