Kosmos 31 (Russian: Космос 31 meaning Cosmos 31), also known as DS-MT No.2 was a technology demonstration satellite which was launched by the Soviet Union in 1964 as part of the Dnepropetrovsk Sputnik programme. Its primary mission was to demonstrate an electric gyrodyne orientation system.[3] It also carried a scientific research package as a secondary payload, which was used to study cosmic rays.[3]
Mission type | Technology Cosmic ray |
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Operator | VNIIEM |
COSPAR ID | 1964-028A ![]() |
SATCAT no. | 00803 |
Mission duration | 136 days |
Spacecraft properties | |
Spacecraft type | DS-MT |
Manufacturer | Yuzhnoye |
Launch mass | 325 kg[1] |
Start of mission | |
Launch date | 6 June 1964, 06:00:00 GMT |
Rocket | Kosmos-2I 63S1 |
Launch site | Kapustin Yar, Mayak-2 |
End of mission | |
Decay date | 20 October 1964 |
Orbital parameters | |
Reference system | Geocentric[2] |
Regime | Low Earth |
Perigee altitude | 222 km |
Apogee altitude | 492 km |
Inclination | 49.0° |
Period | 91.6 minutes |
Epoch | 6 juin 1964 |
It was launched aboard a Kosmos-2I 63S1 rocket[4] from Mayak-2 at Kapustin Yar. The launch occurred at 06:00 GMT on 6 June 1964.[5]
Kosmos 31 was placed into a low Earth orbit with a perigee of 222 kilometres (138 mi), an apogee of 492 kilometres (306 mi), 49.0° of inclination, and an orbital period of 91.6 minutes. It decayed from orbit on 20 October 1964.[6] Kosmos 31 was the second of three DS-MT satellites to be launched. The first, DS-MT No.1, was lost in a launch failure on 1 June 1963, and the third will be Kosmos 51, which will be launched on 9 December 1964.[7]
← 1963 · Orbital launches in 1964 · 1965 → | |
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Poppy 3 · GGSE-1 · SOLRAD 7A · SECOR 1 | OPS 3367A · OPS 3367B | Relay 2 | Echo 2 | Jupiter Nosecone | Elektron 1 · Elektron 2 | Ranger 6 | OPS 3444 | Zond 3MV-1 No.2 | Kosmos 25 | OPS 2423 | OPS 3722 | OPS 3435 | Kosmos 26 | BE-A | Luna E-6 No.6 | OPS 3467 | Kosmos 27 | Ariel 2 | Zond 1 | Kosmos 28 | Gemini 1 | Polyot 2 | Luna E-6 No.5 | Transit 5BN-3 · Transit 5E-4 | OPS 3743 | Kosmos 29 | OPS 2921 | Kosmos 30 | OPS 3592 | Apollo AS-101 | OPS 4412 | OPS 3483 | Molniya-1 No.2 | Kosmos 31 | Kosmos 32 | OPS 3236 | OPS 4467A · OPS 4467B | OPS 3754 | Kosmos 33 | ESRS | Atlas-Centaur 3 | Kosmos 34 | OPS 3395 | OPS 3684 · OPS 4923 | Elektron 3 · Elektron 4 | OPS 3491 | Kosmos 35 | Vela 2A · Vela 2B · ERS-13 | Ranger 7 | Kosmos 36 | OPS 3042 | Kosmos 37 | OPS 3802 · OPS 3216 | Kosmos 38 · Kosmos 39 · Kosmos 40 | Syncom 3 | OPS 2739 | Kosmos 41 | Kosmos 42 · Kosmos 43 | Kosmos 44 | Titan 3A-2 | OGO-1 | Kosmos 45 | OPS 3497 | Apollo AS-102 | OPS 4262 | Kosmos 46 | Explorer 21 | OPS 3333 | Kosmos 47 | OPS 5798 · Dragsphere 1 · Dragsphere 2 | OPS 4036 | Explorer 22 | Voskhod 1 | Kosmos 48 | OPS 3559 | Strela-1 No.6 · Strela-1 No.7 · Strela-1 No.8 | OPS 4384 · OPS 5063 | Kosmos 49 | Kosmos 50 | OPS 5434 | OPS 3062 | Mariner 3 | Explorer 23 | OPS 3360 | Explorer 24 · Explorer 25 | Mariner 4 | Zond 2 | DS-2 No.2 | OPS 4439 | Kosmos 51 | Titan 3A-1 | Surveyor Mass Model | OPS 6582 · Transit 5E-5 | San Marco 1 | OPS 3358 | Explorer 26 | OPS 3762 | |
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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