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| Yantar-related Missions
Some of the 1972-1975 Zenit-2M missions were used to evaluate and test equipment intended for Yantar - an improved surveillance sytem and eventual Zenit replacement.
The main mission of the Zenit as a photo-reconnaissance satellite was not affected in any way. Test equipment for the Yantar electronics, navigation and computing systems were housed in Nauka autonomous modules. Tests of the Yantar film-carrying re-entry modules probably involved the capsule being on a structure fitted in the space normally occupied by the Nauka.
Cosmos 525(Zenit-2M 11Ф690, Gektor) 1972-083A 6248 |
1972 Oct 18, 11:59 UTC Plesetsk Cosmodrome Voskhod, 11A57 |
1972 Oct 19, 01:09: 206 x 268 km, 65.38 deg, 89.2 min |
Second Generation imaging satellite equipped with film cameras for photo-reconnaissance - recovered after 12 days. Carried Nauka autonomous module that tested components of the Condor control unit for the upcoming Yantar series - it was separated about day 9 of the flight. |
Landed: 1972 Oct 29, 05:14 |
HF Transmit: 19.995 MHz, FSK/PDM |
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Cosmos 552(Zenit-2M 11Ф690, Gektor) 1973-016A 6394 |
1973 Mar 22, 10:00 UTC Plesetsk Cosmodrome Voskhod, 11A57 |
1973 Mar 22, 18:46: 203 x 311 km, 72.84 deg, 89.6 min |
Second Generation imaging satellite equipped with film cameras for photo-reconnaissance - recovered after 12 days. Carried Nauka autonomous module that tested components of the Condor control unit for the upcoming Yantar series - it was separated about day 4 of the flight. |
Landed: 1973 Apr 3, 04:29 |
HF Transmit: 19.995 MHz, FSK/PDM |
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Cosmos 596(Zenit-2M 11Ф690, Gektor) 1973-070A 6856 |
1973 Oct 3, 13:00 UTC Plesetsk Cosmodrome Voskhod, 11A57 |
1973 Oct 03, 20:12: 205 x 287 km, 65.41 deg, 89.4 min |
Second Generation imaging satellite equipped with film cameras for photo-reconnaissance - recovered after 6 days. Also carried a test re-entry capsule for Yantar. Separation of the Yantar capsule's re-entry aeroshell failed and prevented deployment of the parachute. The capsule was subsequently destroyed on impact. |
Landed: 1973 Oct 9, 07:42 Recovery beacon: TG |
HF Transmit: 19.995 MHz, FSK/PDM |
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Cosmos 629(Zenit-2M 11Ф690, Gektor) 1974-003A 7100 |
1974 Jan 24, 15:00 UTC Plesetsk Cosmodrome Voskhod, 11A57 |
1974 Jan 25, 02:37: 196 x 289 km, 62.82 deg, 89.4 min |
Second Generation imaging satellite equipped with film cameras for photo-reconnaissance - recovered after 12 days. Also carried a test re-entry capsule for Yantar. |
Landed: 1974 Feb 5, 06:53 Recovery beacon: TG |
HF Transmit: 19.995 MHz, FSK/PDM |
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Cosmos 635(Zenit-2M 11Ф690, Gektor) 1974-014A 7216 |
1974 Mar 14, 10:30 UTC Plesetsk Cosmodrome Voskhod, 11A57 |
1974 Mar 14, 23:46: 204 x 324 km, 72.83 deg, 89.8 min |
Second Generation imaging satellite equipped with film cameras for photo-reconnaissance - recovered after 12 days. Carried Nauka autonomous module that tested navigation equipment and radio-altimeter for Yantar - it separated about day 4 of the flight. |
Landed: 1974 Mar 26, 05:27 Recovery beacon: TG |
HF Transmit: 19.995 MHz, FSK/PDM |
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Cosmos(Zenit-2M 11Ф690, Gektor) |
1974 Aug 30, 00:00 UTC Plesetsk Cosmodrome Voskhod, 11A57 |
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Second Generation imaging satellite equipped with film cameras for photo-reconnaissance - failed to reach orbit. Also carried a test re-entry capsule for Yantar. |
Not Recovered |
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Cosmos 692(Zenit-2M 11Ф690, Gektor) 1974-087A 7502 |
1974 Nov 1, 14:20 UTC Plesetsk Cosmodrome Voskhod, 11A57 |
1974 Nov 01, 17:01: 195 x 296 km, 62.82 deg, 89.4 min |
Second Generation imaging satellite equipped with film cameras for photo-reconnaissance - recovered after 12 days. Also carried a test re-entry capsule for Yantar that was successfully recovered. |
Landed: 1974 Nov 13, 06:20 |
HF Transmit: 19.995 MHz, FSK/PDM |
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Cosmos 769(Zenit-2M 11Ф690, Gektor) 1975-088A 8322 |
1975 Sep 23, 10:00 UTC Plesetsk Cosmodrome Voskhod, 11A57 |
1975 Sep 23, 15:46: 203 x 305 km, 72.81 deg, 89.6 min |
Second Generation imaging satellite equipped with film cameras for photo-reconnaissance - recovered after 12 days. Also carried a Yantar re-entry capsule that was successfully recovered. |
Landed: 1975 Oct 5, 04:21 |
HF Transmit: 19.995 MHz, FSK/PDM |
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Page date: 2011 Sep 14
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