OGO-2,4,6 Encyclopedia data merged with satellite positions from the condensed orbit tapes COLUMNS FMT DESCRIPTION 1- 4 I*4 MODIFIED JULIAN DAY (MJD) 5- 8 I*4 SATELLITE NUMBER 9- 12 I*4 ARC NUMBER 13- 16 I*4 NUMBER OF POINTS IN DATA GROUP 17- 20 R*4 LONGITUDE OF FIRST DATA POINT IN GROUP 21- 56 (9)R*4 POLYNOMIAL COEFFICIENT (not used) FOLLOWED BY NPTS OF DATA I*4 MILLISECONDS OF DAY R*4 GEOCENTRIC LATITUDE R*4 LONGITUDE (-180 TO 180) R*4 GEOCENTRIC ALTITUDE (FROM CENTER OF EARTH) R*4 TOTAL MAGNETIC FIELD MEASUREMENT (nT) R*4 0. (not used) I*4 Kp SOLAR ACTIVITY VALUE R*4 0. (not used) R*4 0. (not used) R*4 0. (not used)