2) Date: May need to change to yymmdd format...with or without the "-" If the year is increased to four digits...two more spaces are needed. 3) Time: UTC of course. The date and time format may change...delete separators possibly. 4) Dir: Direction of satellite travel. Seems that N (north) or S (south) are adequate but some far northern/southern observers may use a different direction 5) aI: Azimuth of Iridium at max flare...measured eastward from north 6) eI: Elevation of max flare point..also called Altitude by some 7) aM: Azimuth of maximum elevation/altitude for this pass 8) eM: Maximum elevation/altitude 9) aS: Azimuth of the Sun at max flare. It remains to be seen if this is a valid entry (along with Sun elevation). If it can be shown that phase angle is the key parameter, then I would suggest replacing these values with PM/AM so we know if it is an evening.morning pass 10) eS: Elevation of sun at max flare 11) Phs: Sun phase angle 12) Dur: Duration of flare in seconds. Since it is subjective when to start the timing, exact values are not critical. 13) Mag: Magnitude of max flare. Personally I think to whole magnitude is good enough. May have to if the extra digits are needed for other changes. 12) Obs: Observer initials. Now two spaces to save space. Several changes are dependent upon the maximum line length. If the 72 space length is not correct, I need to understand the real maximum. Comments and suggestions are welcome. I put the pass directions and sun info together to improve readability. Ron "Mr Iridium" Lee NORAD date time Dir aI eI aM eM aS eS Phs Dur Mag Obs xxxxx dd-mm-yy hh:mm:ss x xxx xx xxx xx xxx -xx xxx tt Sn.n II xxxxx 21-08-97 20:27:00 S 28 30 xxx xx 324 -13 Unk 20 -1.0 BG xxxxx 21-08-97 20:27:20 S 33 33 xxx xx 324 -13 Unk 20 -1 BG 24794 23-08-97 01:06.9 S 89 51 84 52 300 -15 43 xx 1 EL 24795 23-08-97 4:19:45 S 94 52 xxx xx 299 -17 Unk 8 -4 CC 24837 23-08-97 21:34:xx S E X 76 34 321 -19 Unk ? -4 TC 24792 24-08-97 4:13:45 S 100 51 xxx xx 298 -16 Unk 7 -3 CC 24903 24-08-97 11:13:xx N 24 17 87 42 64 -12 Unk ~5 1 RL 24907 25-08-97 11:03:xx N 211 35 xxx xx ENE xx 41 15 -4 PM 24906 25-08-97 11:03:xx N 211 35 xxx xx ENE xx 41 15 -4 PM 24905 25-08-97 11:03:xx N 211 35 xxx xx ENE xx 41 15 -4 PM 24904 25-08-97 11:03:xx N 211 35 xxx xx ENE xx 41 15 -4 PM 24903 25-08-97 11:03:xx N 211 35 xxx xx ENE xx 41 15 -4 PM 24904 25-08-97 12:37:xx N SSW 25 xxx xx 70 -9 Unk ~8 -2 JR 24795 26-08-97 00:57.9 S 101 61 86 62 298 -15 47 xx 1 EL 24907 26-08-97 10:58:xx N 214 34 xxx xx ENE xx 38 15 -4 PM 24906 26-08-97 10:58:xx N 214 34 xxx xx ENE xx 38 15 1 PM 24905 26-08-97 10:58:xx N 214 34 xxx xx ENE xx 38 15 -5 PM 24904 26-08-97 10:58:xx N 214 34 xxx xx ENE xx 38 15 -1 PM 24903 26-08-97 10:58:xx N 214 34 xxx xx ENE xx 38 15 -4 PM 24907 26-08-97 12:35:xx N xxx xx 273 50 294 -24 Unk 10 -3 JR 24836 26-08-97 19:58:xx S 42 36 xxx xx 317 -12 Unk 5 3 BG 24841 26-08-97 20:07:xx S 43 41 xxx xx 319 -13 Unk 6 -1 BG 24792 27-08-97 00:51.9 S 104 60 85 61 297 -14 46 xx 0 EL 24793 27-08-97 2:26:25 S 116 50 83 53 294 -17 31 2 -1.5 SW 24906 27-08-97 11:00:45 N 18 16 88 51 63 -15 Unk 10 -4 RL 24907 28-08-97 10:50:xx N 220 32 xxx xx xxx xxx 32 xx 2.5 PM 24906 29-08-97 10:53:57 N 15 16 89 56 62 -17 Unk 15 2 RL 24796 31-08-97 3:04:10 S 130 54 86 63 292 -12 Unk ? -4 PW 24840 31-08-97 20:24:12 S 59 43 xxx xx 313 -18 Unk >5 -0.5 AS 24838 05-09-97 20:22:47 S 77 46 xxx 46 xxx xxx 50 10 -5 KJ 24839 06-09-97 19:57:17 S 69 49 79 49 307 -17 Unk 10 -2 AS 24837 06-09-97 20:16:24 S 77 46 xxx 46 xxx xxx 49 8 -1 KJ 24837 06-09-97 20:16 S 71 43 xxx xx 306 -18 xxx xx 0.5 BD 24840 07-09-97 19:51:23 S 74 49 79 49 305 -16 Unk 5 -3 AS 24841 07-09-97 20:10 S 77 49 xxx xx 305 -18 xxx xx 1.5 BD 24836 10-09-97 20:03 S 86 56 xxx xx 303 -18 xxx xx 3 BD 24841 10-09-97 20:10 S 171 78 xxx xx 305 -19 xxx xx 5 BD 24837 13-09-97 19:43 S 83 66 xxx xx 298 -17 xxx xx -2 BD 24840 13-09-97 19:52 S 80 66 xxx xx 300 -18 xxx xx 4.3 BD 24870 13-09-97 21:08:30 S 60 26 xxx xx 318 -27 xxx xx 4.5 BD 24946 14-09-97 12:41:30 N 18 25 89 58 74 -14 xxx xx 3 CC 24836 14-09-97 19:28:00 S 95 43 78 45 295 -13 146 xx 3 LB 24836 14-09-97 19:28 S 97 45 xxx xx 295 -15 xxx xx 2.5 BD 24841 14-09-97 19:37:11 S 100 51 80 53 296 -15 141 xx -3 LB 24841 14-09-97 19:37 S 93 54 xxx xx 297 -16 xxx xx -6.5 BD 24871 14-09-97 20:53 S 53 22 xxx xx 314 -26 xxx xx 0 BD 24946 15-09-97 4:32 N 196 38 273 77 76 -7 117 xx 2 BD 24945 15-09-97 4:32 N 196 38 274 77 76 -7 117 xx 0 BD 24944 15-09-97 4:32 N 196 38 274 77 76 -7 117 xx 1 BD 24947 15-09-97 12:26:xx N 10 20 90 67 104 -15 72 2 -3 JR 24838 16-09-97 19:16:30 S 89 35 xxx xx 292 -14 xxx xx 4 BD 24839 16-09-97 19:25:20 S 96 63 xxx xx 294 -15 xxx xx 1 BD