Hexagon 9

  1974-085A

---

HEXAGON flight 9 was maintained in a 155 x 270 km orbit with regular orbit trim burns throughout its mission. The initial element sets give a low orbit of 117 x 275 km, followed by 129 x 277 km, before the orbit was raised to 159 x 268 km on the third rev. This may indicate underperformance of the launch vehicle or just inaccurate tracking. On Mar 9 the perigee was allowed to decrease until reentry on Mar 19. 

HEXAGON 9
Date	Time	Event	Orbit
1974 Oct 29	1930	Launch by Titan IIID	V SLC 4E
		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
	1937?	T+7:44? Stage 2 MECO
	1938?	T+8:00 Stage 2 sep
			88.43 117 x 275 x 96.7
	2028?	First apogee over equ. at 41E
	2028?	Perigee raise	88.57 129 x 277 x 96.67
	2148?	Perigee raise	88.77 159 x 268 x 96.69
1974 Oct 29	2324		88.77 159 x 268 x 96.69
1974 Oct 30	0054		88.86 152 x 283 x 96.67
1974 Oct 30	1245		88.85 154 x 281 x 96.71
1974 Oct 30	1414		88.85 154 x 280 x 96.71
1974 Oct 30	1500?	Eject SSU?
1974 Oct 30	1915?	Eject S3-1?
1974 Oct 30	2307		88.83 152 x 281 x 96.67
1974 Oct 31	1525		88.78 152 x 276 x 96.68
1974 Nov 1	0018		88.76 153 x 272 x 96.69
1974 Nov 1	0613		88.74 153 x 271 x 96.69
1974 Nov 1	1208		88.72 153 x 269 x 96.70
1974 Nov 1	2230		88.69 152 x 266 x 96.69
1974 Nov 2	0851		88.66 152 x 264 x 96.70
1974 Nov 2	1743		88.78 157 x 271 x 96.68
1974 Nov 3	0534		88.75 156 x 268 x 96.68
1974 Nov 3	1556		88.72 156 x 266 x 96.68
1974 Nov 5	1941		88.83 155 x 277 x 96.68
1974 Nov 8	1715		88.84 154 x 279 x 96.68
1974 Nov 9	0932		88.79 153 x 275 x 96.68
1974 Nov 11	0853		88.64 151 x 262 x 96.69
1974 Nov 12	0703		88.57 150 x 256 x 96.69
1974 Nov 12	1853		88.89 155 x 284 x 96.66
1974 Nov 13	1538		88.83 152 x 280 x 96.68
1974 Nov 14	1947		88.79 154 x 274 x 96.69
1974 Nov 15	1332		88.73 155 x 268 x 96.67
1974 Nov 16	1611		89.03 156 x 296 x 96.69
1974 Nov 17	1557		88.98 155 x 292 x 96.68
1974 Nov 17	2225?	SRV-1 recovered
1974 Nov 18	1243		88.92 155 x 286 x 96.68
1974 Nov 18	2007		88.79 153 x 274 x 96.69
1974 Nov 20	0907		88.68 153 x 264 x 96.68
1974 Nov 21	0718		88.60 151 x 259 x 96.65
1974 Nov 21	1908		88.85 156 x 278 x 96.67
1974 Nov 22	0828		88.80 153 x 276 x 96.67
1974 Nov 23	1235		88.71 151 x 269 x 96.67
1974 Nov 24	0917		88.65 151 x 263 x 96.67
1974 Nov 24	1939		88.84 153 x 280 x 96.67
1974 Nov 25	2049		88.76 151 x 274 x 96.67
1974 Nov 26	2030		88.68 151 x 266 x 96.67
1974 Nov 27	0820		88.64 150 x 264 x 96.67
1974 Nov 27	1841		88.84 156 x 278 x 96.66
1974 Nov 28	1228		88.79 155 x 273 x 96.66
1974 Nov 28	1952		88.77 156 x 271 x 96.66
1974 Nov 30	0852		88.67 153 x 264 x 96.67
1974 Nov 30	1913		88.82 157 x 274 x 96.63
1974 Dec 1	0108		88.79 153 x 275 x 96.67
1974 Dec 1	1259		88.76 153 x 273 x 96.67
1974 Dec 3	1051		88.62 152 x 260 x 96.67
1974 Dec 3	1646		88.85 155 x 280 x 96.68
1974 Dec 5	0249		88.74 152 x 272 x 96.66
1974 Dec 5	1311		88.72 151 x 270 x 96.65
1974 Dec 6	0527		88.67 151 x 266 x 96.65
1974 Dec 6	2015		88.82 157 x 274 x 96.65
1974 Dec 7	1233		88.78 158 x 270 x 96.66
1974 Dec 7	2126		88.76 155 x 270 x 96.65
1974 Dec 8	1214		88.72 155 x 266 x 96.66
1974 Dec 9	0856		88.66 154 x 262 x 96.66
1974 Dec 9	1749		88.82 163 x 268 x 96.62
1974 Dec 9	2344		88.78 158 x 269 x 96.62
1974 Dec 10	0837		88.76 153 x 272 x 96.66
1974 Dec 10	1304		88.74 153 x 271 x 96.65
1974 Dec 11	1244		88.67 152 x 264 x 96.66
1974 Dec 12	1223		88.60 151 x 258 x 96.66
1974 Dec 12	1947		88.85 153 x 282 x 96.67
1974 Dec 13	1334		88.80 152 x 278 x 96.65
1974 Dec 14	1613		88.73 152 x 270 x 96.65
1974 Dec 15	0829		88.68 150 x 268 x 96.65
1974 Dec 15	1722		88.81 153 x 277 x 96.65
1974 Dec 16	1237		88.76 150 x 275 x 96.61
1974 Dec 17	0920		88.70 150 x 269 x 96.65
1974 Dec 18	1028		88.62 149 x 262 x 96.65
1974 Dec 18	1921		88.82 168 x 264 x 96.61
1974 Dec 19	1307		88.77 155 x 272 x 96.64
1974 Dec 19	1605		88.76 155 x 270 x 96.66
1974 Dec 20	0951		88.70 154 x 265 x 96.64
1974 Dec 21	1228		88.61 152 x 258 x 96.64
1974 Dec 21	1654		88.86 155 x 280 x 96.63
1974 Dec 21	1823		88.84 155 x 279 x 96.63
1974 Dec 22	1209		88.79 154 x 274 x 96.64
1974 Dec 23	1617		88.71 153 x 267 x 96.64
1974 Dec 23	2244?	SRV-2 recovered
1974 Dec 24	1725		88.46 145 x 251 x 96.64
1974 Dec 24	2023		88.84 155 x 278 x 96.63
1974 Dec 25	1240		88.78 153 x 275 x 96.64
1974 Dec 26	1221		88.71 152 x 268 x 96.64
1974 Dec 26		Mapping op 171 last image
1974 Dec 27	2253?	SRV-5 deorbit opp
	2330?	SRV-5 recovered
1974 Dec 27	1330		88.62 151 x 261 x 96.65
1974 Dec 28	0417		88.95 161 x 284 x 96.64
1974 Dec 28	0844		88.84 152 x 281 x 96.65
1974 Dec 28	1608		88.81 152 x 278 x 96.65
1974 Dec 29	0825		88.76 151 x 275 x 96.65
1974 Dec 30	0806		88.69 151 x 267 x 96.64
1974 Dec 30	1956		88.81 156 x 275 x 96.63
1975 Jan 1		DB-11 turned off
1975 Jan 1	0857		88.70 154 x 266 x 96.63
1975 Jan 2	1005		88.63 153 x 260 x 96.63
1975 Jan 2	1858		88.84 156 x 278 x 96.61
1975 Jan 3	0947		88.81 154 x 276 x 96.63
1975 Jan 4	0035		88.77 154 x 272 x 96.63
1975 Jan 4	1226		88.74 154 x 269 x 96.63
1975 Jan 5	0145		88.69 153 x 265 x 96.63
1975 Jan 5	1632		88.82 153 x 278 x 96.63
1975 Jan 5	2357		88.81 152 x 278 x 96.64
1975 Jan 6	0423		88.79 152 x 276 x 96.64
1975 Jan 7	1257		88.68 152 x 265 x 96.64
1975 Jan 8	0810		88.60 150 x 260 x 96.64
1975 Jan 8	1831		88.86 152 x 283 x 96.62
1975 Jan 9	0622		88.81 151 x 279 x 96.62
1975 Jan 9	1644		88.78 152 x 276 x 96.63
1975 Jan 10	0435		88.74 152 x 271 x 96.63
1975 Jan 10	1030		88.73 150 x 272 x 96.62
1975 Jan 11	0415		88.67 150 x 266 x 96.62
1975 Jan 11	1605		88.63 150 x 262 x 96.62
1975 Jan 11	2032		88.84 157 x 277 x 96.60
1975 Jan 12	1121		88.79 155 x 273 x 96.60
1975 Jan 13	1102		88.73 155 x 267 x 96.62
1975 Jan 14	0021		88.68 155 x 263 x 96.63
1975 Jan 14	0913		88.65 154 x 260 x 96.62
1975 Jan 14	1934		88.81 156 x 274 x 96.65
1975 Jan 15	0854		88.76 155 x 271 x 96.61
1975 Jan 16	1003		88.67 153 x 263 x 96.63
1975 Jan 17	0942		88.59 154 x 255 x 96.62
1975 Jan 17	1706		88.76 155 x 271 x 96.65
1975 Jan 17	2004		88.85 154 x 280 x 96.61
1975 Jan 18	0924		88.81 152 x 277 x 96.62
1975 Jan 19	0736		88.73 152 x 271 x 96.62
1975 Jan 20	0419		88.66 151 x 265 x 96.61
1975 Jan 20	1142		88.64 151 x 263 x 96.62
1975 Jan 20	1906		88.85 153 x 282 x 96.58
1975 Jan 21	0955		88.82 151 x 280 x 96.62
1975 Jan 21	2218?	SRV-3 recovered
1975 Jan 22	1106		88.74 150 x 273 x 96.62
1975 Jan 23	1046		88.65 150 x 265 x 96.61
1975 Jan 23	2107		88.81 151 x 279 x 96.61
1975 Jan 25	0412		88.70 151 x 269 x 96.62
1975 Jan 26	0352		88.62 150 x 262 x 96.61
1975 Jan 26	1541		88.58 149 x 258 x 96.61
1975 Jan 26	2008		88.88 161 x 276 x 96.59
1975 Jan 27	1057		88.83 158 x 275 x 96.61
1975 Jan 29	1148		88.67 155 x 262 x 96.61
1975 Jan 29	2041		88.80 160 x 269 x 96.57
1975 Jan 30	0237		88.79 153 x 276 x 96.60
1975 Jan 30	1427		88.76 152 x 273 x 96.60
1975 Jan 31	0942		88.69 151 x 268 x 96.61
1975 Feb 1	1942		88.85 154 x 280 x 96.60
1975 Feb 2	1329		88.77 152 x 274 x 96.60
1975 Feb 3	1309		88.68 152 x 266 x 96.60
1975 Feb 4	0823		88.61 151 x 260 x 96.60
1975 Feb 4	2013		88.86 154 x 280 x 96.60
1975 Feb 5	0933		88.82 155 x 276 x 96.61
1975 Feb 5	1955		88.77 151 x 276 x 96.59
1975 Feb 6	1340		88.71 151 x 269 x 96.60
1975 Feb 7	0854		88.64 149 x 264 x 96.59
1975 Feb 7	2044		88.85 154 x 280 x 96.62
1975 Feb 8	1133		88.78 151 x 276 x 96.60
1975 Feb 9	0816		88.71 152 x 269 x 96.59
1975 Feb 10	1351		88.60 150 x 259 x 96.59
1975 Feb 10	1817		88.85 153 x 281 x 96.57
1975 Feb 11	1203		88.78 152 x 276 x 96.59
1975 Feb 12	1442		88.67 150 x 266 x 96.59
1975 Feb 13	1252		88.57 150 x 256 x 96.60
1975 Feb 13	2145		88.86 160 x 276 x 96.54
1975 Feb 14	1234		88.80 160 x 270 x 96.58
1975 Feb 14	1959		88.79 157 x 272 x 96.59
1975 Feb 15	1216		88.73 156 x 267 x 96.59
1975 Feb 16	0858		88.66 155 x 260 x 96.58
1975 Feb 16	1920		88.82 156 x 276 x 96.58
1975 Feb 17	0839		88.77 157 x 269 x 96.58
1975 Feb 18	0949		88.68 155 x 263 x 96.57
1975 Feb 19	1949		88.84 155 x 278 x 96.59
1975 Feb 20	1038		88.80 155 x 274 x 96.58
1975 Feb 21	1317		88.71 155 x 265 x 96.58
1975 Feb 22	0959		88.64 155 x 258 x 96.58
1975 Feb 22	1852		88.85 157 x 277 x 96.58
1975 Feb 23	0941		88.80 154 x 275 x 96.58
1975 Feb 24	0922		88.71 153 x 268 x 96.58
1975 Feb 25	1030		88.62 152 x 260 x 96.59
1975 Feb 25	1922		88.87 158 x 278 x 96.56
1975 Feb 26	0714		88.81 153 x 277 x 96.58
1975 Feb 27	0824		88.72 153 x 268 x 96.57
1975 Feb 28	0209		88.66 151 x 264 x 96.58
1975 Feb 28	0804		88.64 151 x 263 x 96.58
1975 Feb 28	1656		88.92 154 x 287 x 96.58
1975 Mar 1	0020		88.85 153 x 282 x 96.57
1975 Mar 1	1340		88.81 152 x 278 x 96.57
1975 Mar 2	0855		88.73 151 x 272 x 96.57
1975 Mar 3	1133		88.63 151 x 261 x 96.56
1975 Mar 3	2025		88.84 163 x 270 x 96.56
1975 Mar 4	0945		88.79 152 x 276 x 96.57
1975 Mar 4	1243		88.78 152 x 275 x 96.57
1975 Mar 6	0014		88.65 150 x 264 x 96.57
1975 Mar 6	1332		88.58 149 x 259 x 96.57
1975 Mar 6		Final orbit raise
1975 Mar 6	1927		88.84 151 x 282 x 96.56
1975 Mar 6	2354		88.82 151 x 280 x 96.57
1975 Mar 7		SRV-4 recovered
1975 Mar 7	1016		88.78 150 x 277 x 96.57
1975 Mar 9	1658		88.88 182 x 255 x 96.56
1975 Mar 10	0917		88.81 180 x 251 x 96.57
1975 Mar 12	1007		88.63 174 x 238 x 96.57
1975 Mar 13	1242		88.48 174 x 224 x 96.56
1975 Mar 15	1913		88.23 167 x 206 x 96.56
1975 Mar 17	0502		88.13 162 x 201 x 96.57
1975 Mar 17	1648		88.06 161 x 195 x 96.55
1975 Mar 18	1912		87.69 149 x 170 x 96.54
1975 Mar 18	2040?	Reentered after 141d