ISEE-3 ONE-MINUTE AVERAGED MAGNETIC FIELD DATA (1978-1983) COVERING THE MAGNETOSPHERIC PHASE OF THE ISEE 3 MISSION Title: 1min_1978_1983 NSSDC ID: SPHE-00843 Old ID: 78-079A-02T This data set contains 1-minute magnetic field data in simple ASCII records. It was created at NSSDC from a more complex, multi-resolution data set (NSSDC ID = SPHE-00673; Old ID = 78-079A-02D) provided by the Principal Investigator team and now available from ftp://nssdcftp.gsfc.nasa.gov/spacecraft_data/isee/isee3/magnetic_fields/1min_ascii/ Note that a similar data set, covering the Heliospheric phase of the ISEE 3 mission, is also available: 1min_1984_1990, NSSDC ID: SPHE-00844, Old ID: 78-070A-02U. Data format of logical records: Data format for 1978-1983 1 IYR I4 Last 2 digits of year 2 IDAY I4 Day of year (Jan. 1 = Day 1) 3 HOUR I3 Hour of day (0-23) 4 MIN I3 Min of hour (0-59) 5 F6.1 SE,nT 6 F6.1 SE,nT 7 F6.1 SE,nT 8 F8.1 9 F8.1 10 F8.1 11 F8.1 12 F8.1 13 F8.1 14 = F7.3 15 = F7.3 16 = F7.3 17 <|B|> F6.1 nT 18 <|B|^2> F8.1 19 X F8.2 GSE, Re 20 Y F8.2 GSE, Re 21 Z F8.2 GSE, Re ---------------------------------------------------- Note: Values of , , , and <|B|> are given in nanoteslas. The coordinate system for the B-field components is the JPL-defined I,S coordinate system (origin at the spacecraft): I is the unit vector in the direction of the ISEE-3 spin axis (positive in the northward direction), and S is the unit vector from the spacecraft to the sun. The z-axis is parallel to to I, the y-axis to the cross-product I x S, and the x-axis to Y x Z. The I,S coordinate system is approximately the same as the Solar Ecliptic (SE) system since the spacecraft z-axis (the spin axis) is maintained within 0.5 degree of perpendicular to the ecliptic plane. (SE is defined the same way as GSE, but with the spacecraft [point of observation] substituted for Earth). Last Update: 8/14/2002 HKH