Iridium 50

 1998-010A

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Iridium 50 was launched on 1998 Feb 18 as the first of five on a Delta. It reached operational orbit on Mar 19. The Delta depletion burn placed the second stage in a low perigee orbit, probably to facilitate an early reentry.

Iridium 50
Date	Time	Event	Orbit
1998 Feb 18	1358:09	Launch by Delta 7920-10C	V SLC2
	1359	T+1:04 SRM 1-6 burnout
	1359	T+1:05 SRM 7-9 burn
	1400	T+1:26 SRM 1-3 sep
	1400	T+1:27 SRM 4-6 sep
	1400	T+2:09 SRM 7-9 burnout
	1400	T+2:11 SRM 7-9 sep
	1402:29	T+4:20 MECO
	1402	T+4:34 Stage 2 burn
	1402	T+4:43 Fairing sep
	1409	T+11:13 SECO	170? x 640
	1456	T+58:20 burn 2
	1456	T+58:36 SECO-2
	1500	T+1:02:30 Iridium 50 deploy	626 x 640 x 86.6
	1510	T+1:12:30 Iridium 56 deploy
	1514	T+1:16:40 Iridium 52 deploy
	1518	T+1:20:50 Iridium 53 deploy
	1523	T+1:25:00 Iridium 54 deploy
	1543	burn 3
	1545	Delta depletion	93.49 267 x 623 x 86.6 (10F)
1998 Feb 18	1812		97.40 612 x 655 x 86.6
1998 Feb 20	0418		97.38 619 x 647 x 86.6
1998 Feb 22	0148		97.42 627 x 642 x 86.6
	1625		98.05 663 x 667 x 86.6
1998 Feb 24	0431		98.59 689 x 693 x 86.5
1998 Feb 25	0516		99.27 720 x 726 x 86.5
1998 Mar 8	2242		99.28 722 x 725 x 86.5
1998 Mar 13			99.54 733 x 739 x 86.47
1998 Mar 18			100.24 767 x 773 x 86.4
1998 Mar 19			100.39 773 x 780 x 86.4
1998 Mar 20			100.41 774 x 781 x 86.4
1998 Apr 5			100.41 775 x 779 x 86.4
2004 Jun 29			100.40 775 x 779 x 86.4