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Annual Diaries

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2012 Feb 4, UTC  
Saturday, day 35  
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Events of 1991

Date Time (UTC) Event
1991 Jan 7 17:03 Afanasev and Manarov start a space walk to continue repairs the Kvant 2 hatch - they are equipped with new tools and succeed in replacing the damaged hinge, they then attach a fitment to Mir hull in preparation for mounting a crane on the exterior of the station
1991 Jan 7 22:21 Afanasev and Manarov finish their space walk after 5 hrs 18 mins
1991 Jan 13 10:32 Orbit of Cosmos 2120 reported as 236 x 290 kilometres, 82.6 deg inclination with 90.4 minutes period.
1991 Jan 13 16:31 Orbit of Cosmos 2120 reported as 229 x 251 kilometres, 82.6 deg inclination with 89.8 minutes period.
1991 Jan 14 14:50 Progress M-6 launched from the Baikonur Cosmodrome by Soyuz rocket into 188 x 205 kilometre orbit at 51.6 degrees inclination
1991 Jan 16 16:35 Progress M-6 docks at the Mir complex Kvant docking port - orbit is 363 x 398 kilometres - its cargo includes a crane to be mounted on the outside of the space station
1991 Jan 17 04:48 Cosmos 2120 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere.
1991 Jan 17 10:30 Cosmos 2121 (Zenit-8, Oblik) launched into 169 x 249 kilometre, 88.7 minutes period, 82.6 deg inclination orbit from the Plesetsk Cosmodrome by Soyuz 11A511U rocket. Variant of the Zenit photographic satellite with capabilities of imaging at high slant angle.
1991 Jan 18 04:05 Orbit of Cosmos 2121 reported as 235 x 306 kilometres, 82.6 deg inclination with 88.7 minutes period.
1991 Jan 23 10:59 Afanasev and Manarov start a space walk to attach a new crane to Mir hull crane
1991 Jan 23 16:32 Afanasev and Manarov finish their space walk after 5 hrs 33 mins
1991 Jan 26 09:00 Afanasev and Manarov start a space walk to attach mountings to the outside of Kvant in order to accept solar panels which will be moved from Kristall during a subsequent space walk - they also install components of a rangefinder to be used during a planned visit to the station by the Soviet Union 'Buran' space shuttle during 1992
1991 Jan 26 15:20 Afanasev and Manarov finish their space walk after 6 hrs 20 mins
1991 Jan 28 20:17 Orbit of Cosmos 2121 reported as 229 x 291 kilometres, 82.6 deg inclination with 90 minutes period.
1991 Jan 29 02:18 Orbit of Cosmos 2121 reported as 235 x 314 kilometres, 82.6 deg inclination with 89.8 minutes period.
1991 Feb 4 03:51 Orbit of Cosmos 2121 reported as 232 x 311 kilometres, 82.6 deg inclination with 90.1 minutes period.
1991 Feb 4 14:21 Orbit of Cosmos 2121 reported as 232 x 277 kilometres, 82.6 deg inclination with 90 minutes period.
1991 Feb 7 03:25 Salyut 7/Cosmos 1686 combination re-enters the Earth atmosphere after natural decay of the orbit through air drag - both are destroyed but debris is reported as having reached the ground in Chile and Argentina - the Soviet economic situation has precluded the possibility of further mission s
1991 Feb 10 01:47 Orbit of Cosmos 2121 reported as 230 x 272 kilometres, 82.6 deg inclination with 89.7 minutes period.
1991 Feb 10 04:48 Cosmos 2121 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere.
1991 Feb 11 01:40 Orbit of Cosmos 2121 reported as 226 x 266 kilometres, 82.6 deg inclination with 89.6 minutes period.
1991 Feb 15 09:30 Cosmos 2134 (Yantar-1KFT11Ф660 №13, Cometa) launched into 193 x 308 kilometre, 89.5 minutes period, 64.7 deg inclination orbit from the Baikonur Cosmodrome by Soyuz 11A511U rocket. Recoverable satellite undertaking topopgraphic and mapping surveys for the Soviet/Russian army. The design is a hybrid based on Korolyov's Zenit re-entry cabin, supported by the Yantar-2K service module.
1991 Feb 16 13:41 Orbit of Cosmos 2134 reported as 212 x 262 kilometres, 64.7 deg inclination with 89.5 minutes period.
1991 Mar 3 10:29 Orbit of Cosmos 2134 reported as 204 x 256 kilometres, 64.7 deg inclination with 89.3 minutes period.
1991 Mar 3 23:51 Orbit of Cosmos 2134 reported as 213 x 264 kilometres, 64.7 deg inclination with 89.1 minutes period.
1991 Mar 6 15:30 Cosmos 2136 (Zenit-8, Oblik) launched into 252 x 315 kilometre, 90.2 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Soyuz 11A511U rocket. Variant of the Zenit photographic satellite with capabilities of imaging at high slant angle.
1991 Mar 8 22:47 Orbit of Cosmos 2134 reported as 207 x 254 kilometres, 64.7 deg inclination with 89.3 minutes period.
1991 Mar 9 04:49 Orbit of Cosmos 2136 reported as 249 x 294 kilometres, 62.8 deg inclination with 90.2 minutes period.
1991 Mar 9 12:11 Orbit of Cosmos 2134 reported as 211 x 266 kilometres, 64.7 deg inclination with 89.1 minutes period.
1991 Mar 13 01:43 Orbit of Cosmos 2136 reported as 238 x 260 kilometres, 62.9 deg inclination with 89.9 minutes period.
1991 Mar 13 03:12 Orbit of Cosmos 2136 reported as 238 x 260 kilometres, 62.9 deg inclination with 89.5 minutes period.
1991 Mar 13 14:19 Orbit of Cosmos 2134 reported as 206 x 257 kilometres, 64.7 deg inclination with 89.3 minutes period.
1991 Mar 14 02:12 Orbit of Cosmos 2134 reported as 214 x 263 kilometres, 64.7 deg inclination with 89.1 minutes period.
1991 Mar 14 03:04 Orbit of Cosmos 2136 reported as 206 x 254 kilometres, 62.8 deg inclination with 89.5 minutes period.
1991 Mar 15 12:46 Progress M-6 undocks from Mir
1991 Mar 15 17:14 Progress M-6 fires its manoeuvring engine to initiate re-entry and the spacecraft burns up as a result of frictional heating after some 40 minutes
1991 Mar 17 13:29 Orbit of Cosmos 2134 reported as 210 x 256 kilometres, 64.7 deg inclination with 89.3 minutes period.
1991 Mar 18 01:22 Orbit of Cosmos 2134 reported as 216 x 273 kilometres, 64.7 deg inclination with 89.2 minutes period.
1991 Mar 19 13:05 Progress M-7 launched from the Baikonur Cosmodrome by Soyuz rocket into 186 x 214 kilometre orbit at 51.6 degrees inclination
1991 Mar 20 07:12 Cosmos 2136 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere.
1991 Mar 21 14:40 Approximate time - Progress M-7 approaches the Kvant docking port but the 'Kurs' automatic docking system decides that it is off course and aborts the docking
1991 Mar 23 14:00 Estimated time - Progress M-7 again approaches the Kvant docking port and Kurs reports everything is OK, but mission control detects that the approach is misaligned and aborts the docking - Progress M-7 misses Kvant by 5 metres and comes close to one of Mir solar panels
1991 Mar 26 10:12 Soyuz TM-11 undocks from Mir with Afanasev and Manarov aboard - they wait while the Mir complex rotates 180 degrees and allow Kurs to control an automatic approach to Kvant - the spacecraft is misaligned, thereby identifying the Kvant system as being at fault
1991 Mar 26 10:58 Afanasev and Manarov execute a manual docking of Soyuz TM-11 with Kvant rear port
1991 Mar 26 19:07 Orbit of Cosmos 2134 reported as 206 x 251 kilometres, 64.7 deg inclination with 89.4 minutes period.
1991 Mar 26 22:05 Orbit of Cosmos 2134 reported as 212 x 269 kilometres, 64.7 deg inclination with 89.1 minutes period.
1991 Mar 28 12:02 Progress M-7 docks with Mir forward port - orbit is 364 x 384 kilometres
1991 Apr 1 19:12 Cosmos 2134 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere.
1991 Apr 15 Propellant is pumped from the Mir complex into Progress M-7 in order that the ferry has enough to perform its de-orbit burn
1991 Apr 25 19:29 Afanasev and Manarov start a space walk to place experimental equipment on the outside of the station and to inspect the Kurs antenna on Kvant - they discover that its reflector dish is miss ing!
1991 Apr 25 23:03 Afanasev and Manarov finish their space walk after 3 hrs 34 mins
1991 May 6 22:59 Progress M-7 undocks from Mir
1991 May 7 15:24 Progress M-7 fires its manoeuvring engine to initiate re-entry and the main spacecraft burns up as a result of frictional heating after some 40 minutes - its Raduga recoverable capsule is not found, either it has not separated froMPROGRESS or its recovery location beacon has failed
1991 May 18 12:50 Soyuz TM-12 launched from the Baikonur Cosmodrome by Soyuz rocket into 187 x 203 kilometre orbit at 51.6 degrees inclination with cosmonauts Anatoli Artsebarski, Sergei Krikalyov and Helen Sharman (UK) aboard
1991 May 20 14:50 Soyuz TM-12 docks with Mir forward-facing port after a manual approach necessitated by incorrect data coming from the automatic system - orbit is 375 x 396 kilometres
1991 May 21 09:00 Resurs-F (10) (Resurs-F2 17F42 No6) launched into 182 x 245 kilometre, 88.8 minutes period, 82.3 deg inclination orbit from the Plesetsk Cosmodrome by Soyuz 11A511U rocket. Multi-spectral Earth surface imaging,successfully recovered.
1991 May 23 11:16 Orbit of Resurs-F (10) reported as 230 x 233 kilometres, 82.3 deg inclination with 88.8 minutes period.
1991 May 26 06:15 Soyuz TM-11 undocks with Afanasev, Manarov and Sharman aboard
1991 May 26 10:04 Soyuz TM-11 lands
1991 May 26 20:59 Orbit of Resurs-F (10) reported as 224 x 229 kilometres, 82.3 deg inclination with 89.2 minutes period.
1991 May 26 23:57 Orbit of Resurs-F (10) reported as 229 x 237 kilometres, 82.3 deg inclination with 89.1 minutes period.
1991 May 28 10:10 Soyuz TM-12 undocks from Mir with Artsebarski and Krikalyov aboard
1991 May 28 10:52 After Mir has completed a 180 degree rotation, Soyuz TM-12 docks with Kvant rear port
1991 May 30 08:04 Progress M-8 launched from the Baikonur Cosmodrome by Soyuz rocket into 186 x 230 kilometre orbit at 51.6 degrees inclination
1991 May 31 16:53 Orbit of Resurs-F (10) reported as 223 x 230 kilometres, 82.3 deg inclination with 89.2 minutes period.
1991 Jun 1 00:19 Orbit of Resurs-F (10) reported as 229 x 237 kilometres, 82.3 deg inclination with 89.1 minutes period.
1991 Jun 1 09:44 Progress M-8 docks with Mir forward-facing port - orbit is 390 x 391 kilometres
1991 Jun 5 18:44 Orbit of Resurs-F (10) reported as 221 x 231 kilometres, 82.3 deg inclination with 89.2 minutes period.
1991 Jun 6 02:09 Orbit of Resurs-F (10) reported as 230 x 235 kilometres, 82.3 deg inclination with 89.1 minutes period.
1991 Jun 9 16:21 Orbit of Resurs-F (10) reported as 226 x 229 kilometres, 82.3 deg inclination with 89.2 minutes period.
1991 Jun 10 05:43 Orbit of Resurs-F (10) reported as 225 x 240 kilometres, 82.3 deg inclination with 89.1 minutes period.
1991 Jun 11 17:24 Orbit of Resurs-F (10) reported as 223 x 237 kilometres, 82.3 deg inclination with 89.2 minutes period.
1991 Jun 13 18:25 Orbit of Resurs-F (10) reported as 220 x 234 kilometres, 82.3 deg inclination with 89.2 minutes period.
1991 Jun 13 21:23 Orbit of Resurs-F (10) reported as 232 x 234 kilometres, 82.3 deg inclination with 89.1 minutes period.
1991 Jun 17 01:58 Mak 1 small satellite released from Mir airlock - the aerials fail to deploy and the satellite fails to operate - built by the Moscow Aviation Institute, it was intended to be used to make measurements of the upper atmoshpere
1991 Jun 20 02:24 Resurs-F (10) descent module lands for recovery after being commanded to re-enter the Earth's atmosphere.
1991 Jun 24 20:11 Artsebarski and Krikalyov start a space walk to replace the miss ing reflector on the Kvant Kurs antenna - it is a delicate operation and they can only work during on the daylight portions of the orbit
1991 Jun 25 00:09 Artsebarski and Krikalyov finish their space walk after 4 hrs 58 min
1991 Jun 28 08:09 Resurs-F (11) (Resurs-F1 14F43 No52) launched into 180 x 241 kilometre, 88.8 minutes period, 82.3 deg inclination orbit from the Plesetsk Cosmodrome by Soyuz 11A511U rocket. Earth resources photography satellite also capable of carring microgravity experiments payloads.
1991 Jun 28 19:02 Artsebarski and Krikalyov start a space walk to set up cosmic ray detectors (delivered by Progress M-8) on the outside of Kvant 2 and to retrieve other samples from the outside of Mir
1991 Jun 28 23:26 Artsebarski and Krikalyov finish their space walk after 3 hrs 24 min
1991 Jun 29 00:51 Orbit of Resurs-F (11) reported as 259 x 273 kilometres, 82.3 deg inclination with 88.8 minutes period.
1991 Jul 9 09:40 Cosmos 2152 (Zenit-8, Oblik) launched into 178 x 237 kilometre, 88.7 minutes period, 82.3 deg inclination orbit from the Plesetsk Cosmodrome by Soyuz 11A511U rocket. Variant of the Zenit photographic satellite with capabilities of imaging at high slant angle.
1991 Jul 10 16:53 Orbit of Cosmos 2152 reported as 236 x 350 kilometres, 82.3 deg inclination with 88.7 minutes period.
1991 Jul 11 22:10 Orbit of Resurs-F (11) reported as 252 x 268 kilometres, 82.3 deg inclination with 89.9 minutes period.
1991 Jul 12 01:42 Orbit of Resurs-F (11) reported as 259 x 272 kilometres, 82.3 deg inclination with 89.8 minutes period.
1991 Jul 14 21:51 Orbit of Cosmos 2152 reported as 236 x 348 kilometres, 82.3 deg inclination with 90.4 minutes period.
1991 Jul 15 02:22 Orbit of Cosmos 2152 reported as 235 x 296 kilometres, 82.3 deg inclination with 90.4 minutes period.
1991 Jul 15 11:45 Artsebarski and Krikalyov start a space walk to deliver and fit a work platform to the outside of Kvant which will be used for construction work on the ofora' girder
1991 Jul 15 17:41 Artsebarski and Krikalyov finish their space walk after 5 hrs 56 min
1991 Jul 16 09:49 Orbit of Cosmos 2152 reported as 235 x 296 kilometres, 82.3 deg inclination with 89.9 minutes period.
1991 Jul 18 03:45 Orbit of Cosmos 2152 reported as 235 x 347 kilometres, 82.3 deg inclination with 89.9 minutes period.
1991 Jul 19 10:10 Fifteen minutes earlier than planned, Artsebarski and Krikalyov start a space walk to begin assembling the 14 metre long Sofora girder on the outside of Kvant
1991 Jul 19 15:38 Artsebarski and Krikalyov finish their space walk after 5 hrs 28 min
1991 Jul 19 18:57 Orbit of Cosmos 2152 reported as 235 x 346 kilometres, 82.3 deg inclination with 90.4 minutes period.
1991 Jul 20 09:54 Orbit of Cosmos 2152 reported as 233 x 257 kilometres, 82.3 deg inclination with 90.4 minutes period.
1991 Jul 21 02:24 Resurs-F (11) descent module lands for recovery after being commanded to re-enter the Earth's atmosphere.
1991 Jul 23 04:48 Cosmos 2152 descent module lands for recovery after being commanded to re-enter the Earth's atmosphere.
1991 Jul 23 09:05 Resurs-F (12) (Resurs-F1 14F43 No53) launched into 183 x 231 kilometre, 88.7 minutes period, 82.3 deg inclination orbit from the Plesetsk Cosmodrome by Soyuz 11A511U rocket. Earth resources photography satellite also capable of carring microgravity experiments payloads.
1991 Jul 23 09:15 Artsebarski and Krikalyov start a space walk to continue assembling the Sofora girder on the outside of Kvant
1991 Jul 23 14:49 Artsebarski and Krikalyov finish their space walk after 5 hrs 34 min
1991 Jul 24 02:39 Orbit of Resurs-F (12) reported as 258 x 272 kilometres, 82.3 deg inclination with 88.7 minutes period.
1991 Jul 27 08:45 Approximate time - Artsebarski and Krikalyov start a space walk to complete assembly of the Sofora girder on the outside of Kvant - they complete the job by attaching a hammer and sickle flag to the end of the structure
1991 Jul 27 15:34 Approximate time - Artsebarski and Krikalyov finish their space walk after 6 hrs 49 min - on returning from the work area to the EVA hatch, Artsebarski helmet visor fogs up and he has to be guided back by Krikalyov
1991 Jul 30 15:53 Orbit of Resurs-F (12) reported as 255 x 266 kilometres, 82.3 deg inclination with 89.9 minutes period.
1991 Jul 31 01:32 Orbit of Resurs-F (12) reported as 257 x 273 kilometres, 82.3 deg inclination with 89.8 minutes period.
1991 Aug 8 04:48 Resurs-F (12) descent module lands for recovery after being commanded to re-enter the Earth's atmosphere.
1991 Aug 15 22:16 Progress M-8 undocks from Mir - an attempt to release an aluminium foil covered balloon fails when it tears during inflation - the Mir crew had placed it in the docking tunnel prior to Progress undocking
1991 Aug 16 06:56 Progress M-8 fires its manoeuvring engine to initiate re-entry and the spacecraft burns up as a result of frictional heating after some 40 minutes
1991 Aug 21 10:50 Resurs-F (13) (Resurs-F2 17F42 No7) launched into 182 x 243 kilometre, 88.8 minutes period, 82.3 deg inclination orbit from the Plesetsk Cosmodrome by Soyuz 11A511U rocket. Multi-spectral Earth surface imaging,successfully recovered.
1991 Aug 21 22:54 Progress M-9 launched from the Baikonur Cosmodrome by Soyuz rocket into 186 x 230 kilometre orbit at 51.6 degrees inclination
1991 Aug 22 17:49 Orbit of Resurs-F (13) reported as 230 x 234 kilometres, 82.3 deg inclination with 88.8 minutes period.
1991 Aug 24 00:54 Progress M-9 docks with Mir forward-facing port - orbit is 382 x 384 kilometres
1991 Aug 25 17:08 Orbit of Resurs-F (13) reported as 225 x 229 kilometres, 82.3 deg inclination with 89.2 minutes period.
1991 Aug 26 12:27 Orbit of Resurs-F (13) reported as 228 x 237 kilometres, 82.3 deg inclination with 89.1 minutes period.
1991 Aug 30 05:36 Orbit of Resurs-F (13) reported as 222 x 231 kilometres, 82.3 deg inclination with 89.2 minutes period.
1991 Aug 31 02:48 Orbit of Resurs-F (13) reported as 228 x 242 kilometres, 82.3 deg inclination with 89.1 minutes period.
1991 Sep 4 08:59 Orbit of Resurs-F (13) reported as 222 x 236 kilometres, 82.3 deg inclination with 89.3 minutes period.
1991 Sep 5 01:19 Orbit of Resurs-F (13) reported as 230 x 236 kilometres, 82.3 deg inclination with 89.1 minutes period.
1991 Sep 7 20:13 Orbit of Resurs-F (13) reported as 226 x 232 kilometres, 82.3 deg inclination with 89.2 minutes period.
1991 Sep 8 02:09 Orbit of Resurs-F (13) reported as 231 x 234 kilometres, 82.3 deg inclination with 89.1 minutes period.
1991 Sep 11 23:47 Orbit of Resurs-F (13) reported as 226 x 228 kilometres, 82.3 deg inclination with 89.2 minutes period.
1991 Sep 12 02:45 Orbit of Resurs-F (13) reported as 226 x 240 kilometres, 82.3 deg inclination with 89.1 minutes period.
1991 Sep 16 00:23 Orbit of Resurs-F (13) reported as 229 x 232 kilometres, 82.3 deg inclination with 89.2 minutes period.
1991 Sep 16 01:52 Orbit of Resurs-F (13) reported as 232 x 233 kilometres, 82.3 deg inclination with 89.2 minutes period.
1991 Sep 20 04:48 Resurs-F (13) descent module lands for recovery after being commanded to re-enter the Earth's atmosphere.
1991 Sep 29 23:53 Progress M-9 undocks from Mir
1991 Sep 30 06:16 After separating from the main spacecraft during descent, Progress M-5 Raduga capsule lands in Khazakhstan
1991 Sep 30 07:45 Approximate time - Progress M-9 fires its manoeuvring engine to initiate re-entry and the spacecraft burns up as a result of frictional heating after some 40 minutes
1991 Oct 2 05:59 Soyuz TM-13 launched from the Baikonur Cosmodrome by Soyuz rocket into 195 x 232 kilometre orbit at 51.6 degrees inclination with cosmonauts Aleksandr Volkov, Takhtar Aubakirov (Kazakhstan) and Franz Viebock (Austria) aboard - because Aubakirov is replacing Aleksandr Kaleri, a regular cosmonaut, Krikalyov has to stay aboard Mir for a further six months
1991 Oct 4 07:38 Soyuz TM-13 docks with Mir forward-facing port after a manual approach necessitated by incorrect data coming from the automatic system - orbit is 392 x 403 kilometres
1991 Oct 4 18:10 Foton (4) (Foton №7) launched into 215 x 396 kilometre, 90.6 minutes period, 62.8 deg inclination orbit from the Plesetsk Cosmodrome by Soyuz 11A511U rocket. Microgravity research satellite based on the Zenit reconsat (probably the 2M version).
1991 Oct 10 00:55 Soyuz TM-12 undocks from Mir with Artsebarski, Aubakirov and Viebock aboard
1991 Oct 10 04:12 Soyuz TM-12 lands
1991 Oct 15 01:01 Soyuz TM-13 undocks from Mir with Volkov and Krikalyov aboard
1991 Oct 15 02:45 After Mir has completed a 180 degree rotation, Soyuz TM-13 docks with Kvant rear port after making several approaches to to test the newly-repaired Kurs antenna
1991 Oct 17 00:05 Progress M-10 launched from the Baikonur Cosmodrome by Soyuz rocket into 185 x 217 kilometre orbit at 51.6 degrees inclination
1991 Oct 18 00:00 Mak 1 , a small satellite released from Mir 1991 Jun 17, re-enters the Earth's atmosphere
1991 Oct 19 01:30 Approximate time - Progress M-10 approaches Mir's forward-facing port but aborts an automatic docking at a distance of 150 metres
1991 Oct 20 08:10 Foton (4) descent module lands for recovery after being commanded to re-enter the Earth's atmosphere.
1991 Oct 21 03:40 Progress M-10 docks automatically with Mir's forward-facing port at the second attempt - orbit is 395 x 401 kilometres
1991 Nov 5 In anticipation of the forthcoming dissolution of the Soviet Union, the Russian government hands ownership of Mir to NPO Energia, a private company which has evolved from Sergei Korolyov original design bureau
1991 Dec 17 11:00 Cosmos 2174 (Yantar-1KFT11Ф660 №14, Cometa) launched into 195 x 308 kilometre, 89.5 minutes period, 64.9 deg inclination orbit from the Baikonur Cosmodrome by Soyuz 11A511U rocket. Recoverable satellite undertaking topopgraphic and mapping surveys for the Soviet/Russian army. The design is a hybrid based on Korolyov's Zenit re-entry cabin, supported by the Yantar-2K service module.
1991 Dec 18 07:45 Orbit of Cosmos 2174 reported as 209 x 266 kilometres, 64.9 deg inclination with 89.5 minutes period.
1991 Dec 23 17:04 Orbit of Cosmos 2174 reported as 204 x 257 kilometres, 64.9 deg inclination with 89.3 minutes period.
1991 Dec 24 02:34 Orbit of Cosmos 2174 reported as 211 x 267 kilometres, 64.9 deg inclination with 89.1 minutes period.
1991 Dec 30 00:45 Orbit of Cosmos 2174 reported as 205 x 258 kilometres, 64.9 deg inclination with 89.3 minutes period.
1991 Dec 30 02:54 Orbit of Cosmos 2174 reported as 214 x 265 kilometres, 64.9 deg inclination with 89.1 minutes period.
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