CCSD3FF0000500000001CCSD3CS00004MRK**001 ADIDNAME=NSSD0134; CCSD$$MARKERMRK**001CCSD3KS00002MRK**002 TECHNICAL_CONTACT: JUDY JOHNSON STAN COBB CODE 696 CODE 696 NASA/GSFC NASA/GSFC GREENBELT, MD 20771 GREENBELT, MD 20771 NSI/DECnet ELDYN::U6JAJ NSI/DECnet ELDYN::XRPSC TEL: (301) 286-4888 TEL: (301) 286-9563 SCIENTIFIC_CONTACT: DR. NELSON C. MAYNARD DR. THOMAS AGGSON PHILLIPS LABORATORY CODE 696 GEOPHYSICS DIRECTORATE NASA/GSFC PL/OL -AA/PHG GREENBELT, MD 20771 HANSCOM AFB, MA 01731 NSI/DECnet AFGLSC::MAYNARD NSI/DECnet ELDYN::U6JAJ TEL: (617) 377-2431/32 TEL: (301) 286-5726 Subm_Date: 1990-11-10 (YYYY-DD-MM) Title: Format for San Marco D/L Electric Field Instrument (EFI) AC Spectrometer Data Set Descr: Format description of the San Marco D/L Electric Field Instrument (EFI) AC Spectrometer Data Set. The San Marco Electric Field Instrument (EFI) is a three-axis symmetric double floating probe electric field instrument very similar to the instrument flown on DE-2 (Dynamics Explorer 2). Two pairs of wire antennas were deployed in the spin plane at 90 degrees to one another, and one pair of cylindrical antennas was deployed along the nominal spin axis. Rel_Date: 1993-02-15 (YYYY-DD-MM) CCSD$$MARKERMRK**002CCSD3DF0000200000001 TYPE_OF_FILE_NAME: AC FILE FILE_ATTRIBUTES: Variable length, sequential file RECORD_LENGTH: A. HEADER_RECORD: 20 bytes B. DATA_POINT_RECORD: 266 bytes TYPE_OF_FILE_DESCRIPTION: This file contains the EFI spectrometer data. File names are of the form described in the VOLDESC.SFD. The first record contains the name of the original binary file from which the archive file was created, and every record thereafter is a data record containing the date and time of the data in the record, several orbital parameters for that time and the spectrometer data for every channel of each of the three spectrometers. The time interval between data points is .512 second. Data gaps may occur so using the time tag of every record is recommended. FORMAT_OF_THE_HEADER_RECORD: BYTE FIELD TYPE VALUE UNITS NUMBER CONTENTS VI/VR/C RANGE 1 - 20 Source DBA Name CHARACTER - - Record format: A20 FORMAT_OF_THE_DATA_POINT_RECORD: BYTE FIELD TYPE VALUE UNITS NUMBER CONTENTS VI/VR/C RANGE 1 - 5 Date of the data in ASCII integer 88102 - 88341 Julian Date the record (YrDay) 7 - 14 Time of the data in ASCII integer 0 - 86400000 Milliseconds the record 16 - 22 Altitude of the ASCII real 0 - 1300 Kilometers satellite above the spheroid 24 - 30 Geographic latitude ASCII real -90 - 90 Degrees 32 - 38 Geographic longitude ASCII real 0 - 360 Degrees 40 - 46 Local solar time ASCII real 0 - 24 Hours 48 - 54 Magnetic dip latitude ASCII real -30 - 30 Degrees 56 Antenna spectrometer C X,Y,Z - LOA is connected to 58 Antenna spectrometer C X,Y,Z - LOB is connected to 60 Antenna spectrometer C X,Y,Z - HIA is connected to 62 Spectrometer LOA gain C H,L - 64 Spectrometer LOB gain C H,L - 66 Spectrometer HIA gain C H,L - 68 - 76 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 1 of spectrometer LOA (4 - 8 Hz) 78 - 86 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 2 of spectrometer LOA (8 - 16 Hz) 88 - 96 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 3 of spectrometer LOA 98 -106 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 4 of spectrometer LOA 108-116 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 5 of spectrometer LOA 118-126 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 6 of spectrometer LOA 128-136 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 7 of spectrometer LOA 138-146 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 8 of spectrometer HIA 148-156 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 9 of spectrometer HIA 158-166 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 10 of spectrometer HIA 168-176 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 11 of spectrometer HIA 178-186 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 12 of spectrometer HIA 188-196 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 13 of spectrometer LOB 198-206 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 14 of spectrometer LOB 208-216 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 15 of spectrometer LOB 218-226 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 16 of spectrometer LOB 228-236 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 17 of spectrometer LOB 238-246 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 18 of spectrometer LOB 248-256 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 19 of spectrometer LOB 258-266 AC electric field ASCII real .0001 - 10. Millivolts/meter values for channel 20 of spectrometer LOB Record format: I5,1X,I8.8,5(1X,F7.2),6(1X,A1),20(1X,F9.4) Filled data value for all electric field and OA parameters is -999.99. The gain of the spectrometers is given just for reference, the AC electric field values have already been reduced to common units for both high and low gains. FORMAT_APPLY_SCOPE: This format applies to all AC files. /* */