Hexagon 15

 1979-025A

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This flight carried the NAVPAC autonomous navigation experiment.

HEXAGON 15
Date	Time	Event	Orbit
1979 Mar 16	1830	Launch by Titan IIID	V SLC4E
		T+1:49? Stage 1 burn 2:27
		T+1:55 SRM burnout
		T+1:55 SRM sep
		T+4:16 Stage 1 MECO
		T+4:16 Stage 1 sep
		T+4:16 Stage 2 burn
		T+5:05? Fairing
	1837?	T+7:44? Stage 2 MECO
	1838?	T+8:00 Stage 2 sep
			88.6 161 x 247 x 96.4
1979 Mar 17			156 x 243 x 96.4
1979 Mar 17			161 x 256 x 96.4
1979 Mar			160 to 170 x 244 to 260 x 96.4
1979 Mar 30			167 x 279 x 96.4
1979 Mar 31			168 x 259 x 96.4
1979 Apr 1-18			160 to 170 x 240 to 262 x 96.4
1979 Apr 23			88.56 163 x 242 x 96.4
1979 Apr 24			88.85 171 x 263 x 96.4
1979 Apr 26	2044?	SRV-1 MAR
1979 Apr 30	2322		88.73 166 x 257 x 96.35
1979 Jun 1			88.81 164 x 266 x 96.4
1979 Jun 7		Map op 387
1979 Jun 8		op 400
1979 Jun 10	1855		88.61 160 x 251 x 96.3
1979 Jun 16	2029?	SRV-2 MAR
1979 Jun 22		op 450
1979 Jun 30			88.8 167 x 266 x 96.2 (SSR)
1979 Jul 1		op 475
1979 Jul 5			88.59 159 x 249 x 96.2
1979 Jul 7		op 483
1979 Jul 10		op 486
1979 Jul 11		op 487 last mapping image
1979 Jul 12	2033?	SRV-5 deorbit opp
	2105?	SRV 1215-5 recovered after 118d
1979 Jul 15			88.68 162 x 256 x 96.3
1979 Jul 31	2040?	SRV-3 MAR
1979 Aug 1			88.83 172 x 260 x 96.3
1979 Aug 15	0623		88.60 161 x248 x 96.3
1979 Aug 31			88.7 165 x 265 x 96.2 (SSR)
1979 Sep 1			88.65 161 x 254 x 96.2
1979 Sep 19	2043?	SRV-4 MAR
1979 Sep 20	1316		88.66 164 x 252 x 96.2
1979 Sep 22	2115?	Reentered after 190d