Kosmos 955

TASS report on the launch of Kosmos-955.

Kosmos 955 (Russian: Космос-955; International Designator: 1977-091A, satcat number 10362[1]) was a Soviet ELINT satellite, launched from the Plesetsk Cosmodrome on September 20, 1977, at 01:01 UTC. The satellite's mass was 2,500 kg.[1] Kosmos 955 had a periapsis of 631 km, apoapsis of 664 km, period inclination of 81.2° and an orbital eccentricity of 0.00235. It was launched by a Vostok-2M carrier rocket.[2]

It decayed from orbit on 8 September 2000.[3]

Overview

The launch of Kosmos 955 has been suggested as the cause of the Petrozavodsk phenomenon.[4]

According to the official report (pictured), the satellite contained scientific equipment for the "further exploration of outer space" as well as tools for making exact measurements of its orbital parameters. Also, the satellite was capable of self-observation of its own systems and devices. However,[1] no public data or experiments have ever been returned and it is presumed that it was a test of the military surveillance system, Tselina-D.

References

  1. ^ a b c "Cosmos 955". NASA. Retrieved 11 September 2012.
  2. ^ "Cosmos 955 Launch Information". NASA NSSDCA. Retrieved January 1, 2023.
  3. ^ "CelesTrak: Search Satellite Catalog".
  4. ^ "Soviet UFO due to secret launch". Science News. 112. October 8, 1977.
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Tselina satellites
Tselina-O
  • UnknownA
  • Kosmos 189A
  • Kosmos 200
  • Kosmos 250
  • Kosmos 269
  • Kosmos 315
  • Kosmos 330
  • Kosmos 387
  • Kosmos 395
  • Kosmos 425
  • Unknown
  • Kosmos 436
  • Kosmos 437
  • Kosmos 460
  • Kosmos 479
  • Kosmos 500
  • Kosmos 536
  • Kosmos 544
  • Kosmos 549
  • Kosmos 582
  • Kosmos 610
  • Kosmos 631
  • Kosmos 655
  • Kosmos 661
  • Kosmos 698
  • Kosmos 707
  • Kosmos 749
  • Kosmos 781
  • Kosmos 787
  • Kosmos 790
  • Kosmos 812
  • Kosmos 845
  • Kosmos 870
  • Kosmos 899
  • Kosmos 924
  • Kosmos 960
  • Kosmos 1008
  • Kosmos 1062
  • Kosmos 1114
  • Kosmos 1215
  • Kosmos 1345
Tselina-D
  • Kosmos 389
  • Kosmos 405
  • Kosmos 476
  • Kosmos 542
  • Kosmos 604
  • Kosmos 673
  • Kosmos 744
  • Kosmos 756
  • Kosmos 808
  • Kosmos 851
  • Kosmos 895
  • Kosmos 925
  • Kosmos 955
  • Kosmos 975
  • Kosmos 1005
  • Kosmos 1043
  • Kosmos 1063
  • Kosmos 1077
  • Kosmos 1093
  • Kosmos 1116
  • Kosmos 1143
  • Kosmos 1145
  • Kosmos 1154
  • Kosmos 1184
  • Kosmos 1206
  • Kosmos 1222
  • Kosmos 1242
  • Kosmos 1271
  • Kosmos 1300
  • Kosmos 1315
  • Kosmos 1328
  • Kosmos 1340
  • Kosmos 1346
  • Kosmos 1356
  • Kosmos 1378
  • Kosmos 1400
  • Kosmos 1408
  • Kosmos 1437
  • Kosmos 1441
  • Kosmos 1455
  • Kosmos 1470
  • Kosmos 1515
  • Kosmos 1536
  • Kosmos 1544
  • Kosmos 1696
  • Kosmos 1626
  • Kosmos 1633
  • Kosmos 1666
  • Kosmos 1674
  • Kosmos 1703
  • Kosmos 1707
  • Kosmos 1726
  • Kosmos 1733
  • Kosmos 1743
  • Kosmos 1758
  • Kosmos 1782
  • Kosmos 1812
  • Kosmos 1825
  • Kosmos 1842
  • Kosmos 1862
  • Kosmos 1892
  • Kosmos 1908
  • Kosmos 1933
  • Kosmos 1953
  • Kosmos 1975
  • Kosmos 2221
  • Kosmos 2228
  • Unknown
Tselina-R
  • Kosmos 1805
  • Kosmos 2058
  • Kosmos 2151
  • Kosmos 2242
Tselina-2
  • Kosmos 1603
  • Kosmos 1656
  • Kosmos 1714
  • Kosmos 1844
  • Kosmos 1943
  • Kosmos 1980
  • Kosmos 2082
  • Unknown
  • Unknown
  • Unknown
  • Kosmos 2219
  • Kosmos 2227
  • Kosmos 2237
  • Kosmos 2263
  • Kosmos 2278
  • Kosmos 2297
  • Kosmos 2322
  • Kosmos 2333
  • Unknown
  • Kosmos 2360
  • Kosmos 2369
  • Kosmos 2406
  • Kosmos 2428
EPNA
03.0380
  • Kosmos 921
  • Kosmos 956
  • Kosmos 972
  • Kosmos 1025
03.0694
  • Unknown
  • Unnamed
  • Kosmos 1697
  • Kosmos 1833
03.0695
  • Kosmos 1767
  • Kosmos 1820
  • Kosmos 1871
  • Kosmos 1873
  • A - Mass simulator
  • Satellites in italics failed to achieve orbit
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Orbital launches in 1977
  • Kosmos 888
  • Meteor-2 No.2
  • Kosmos 889
  • Kosmos 890
  • NATO 3B
  • Kosmos 891
  • OPS 3151
  • Soyuz 24
  • Kosmos 892
  • Molniya-2-17
  • Kosmos 893
  • Tansei 3
  • Kosmos 894
  • Unnamed
  • Kiku 2
  • Kosmos 895
  • Kosmos 896
  • Kosmos 897
  • Palapa A2
  • OPS 4915
  • Kosmos 898
  • Molniya-1-36
  • Kosmos 899
  • Kosmos 900
  • Meteor-M No.39
  • Kosmos 901
  • Kosmos 902
  • Kosmos 903
  • Kosmos 904
  • GEOS-1
  • Kosmos 905
  • Kosmos 906
  • Molniya-3 No.19
  • Kosmos 907
  • OPS 9437
  • OPS 9438
  • Kosmos 908
  • Kosmos 909
  • Kosmos 910
  • OPS 9751
  • Kosmos 911
  • Kosmos 912
  • Intelsat IVA F-4
  • Kosmos 913
  • Kosmos 914
  • OPS 5644
  • Kosmos 915
  • Kosmos 916
  • Kosmos 917
  • GOES 2
  • Signe 3
  • Kosmos 918
  • Kosmos 919
  • Kosmos 920
  • NTS-2
  • Molniya-1 No.45
  • Kosmos 921
  • OPS 4800
  • Meteor-Priroda No.2-2
  • Kosmos 922
  • Kosmos 923
  • Kosmos 924
  • Kosmos 925
  • Kosmos 926
  • Kosmos 927
  • Kosmos 928
  • Himawari 1
  • Kosmos 929
  • Kosmos 930
  • Kosmos 931
  • Kosmos 932
  • Kosmos 933
  • Gran' No.13L
  • Kosmos 934
  • Kosmos 935
  • Kosmos 936
  • TKS-VA No.009P
  • TKS-VA No.009A
  • Unnamed
  • HEAO-1
  • Voyager 2
  • Kosmos 937
  • Kosmos 938
  • Kosmos 939
  • Kosmos 940
  • Kosmos 941
  • Kosmos 942
  • Kosmos 943
  • Kosmos 944
  • Kosmos 945
  • Kosmos 946
  • Sirio 1
  • Kosmos 947
  • Molniya-1-38
  • Kosmos 948
  • Voyager 1
  • Kosmos 949
  • Kosmos 950
  • Kosmos 951
  • OTS-1
  • Kosmos 952
  • Kosmos 953
  • Kosmos 954
  • Kosmos 955
  • Ekran No.12L
  • Prognoz 6
  • OPS 7471
  • Kosmos 956
  • Interkosmos 17
  • Salyut 6
  • Intelsat IVA F-5
  • Kosmos 957
  • Soyuz 25
  • Kosmos 958
  • Kosmos 959
  • ISEE-1
  • ISEE-2
  • Kosmos 960
  • Kosmos 961
  • Molniya-3 No.18
  • Transat
  • Kosmos 962
  • Meteosat 1
  • Kosmos 963
  • Unnamed
  • Kosmos 964
  • Kosmos 965
  • OPS 8781
  • OPS 8781 SSU-1
  • OPS 8781 SSU-2
  • OPS 8781 SSU-3
  • Soyuz 26
  • OPS 4258
  • Kosmos 966
  • Kosmos 967
  • Meteor-2 No.3
  • Sakura 1
  • Kosmos 968
  • Kosmos 969
  • Kosmos 970
  • Kosmos 971
  • Kosmos 972
  • Kosmos 973
Payloads are separated by bullets ( · ), launches by pipes ( | ). Crewed flights are indicated in underline. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in (brackets).


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