Kosmos 300
Failed Soviet lunar sample-return mission
| Operator | Soviet space program |
|---|---|
| COSPAR ID | 1969-080A  |
| SATCAT no. | 4104 |
| Mission duration | 4 days |
| Spacecraft properties | |
| Spacecraft type | Ye-8-5 |
| Manufacturer | GSMZ Lavochkin |
| Launch mass | 5,600 kg (12,300 lb)[1] |
| Start of mission | |
| Launch date | September 23, 1969, 14:07:00 (1969-09-23UTC14:07Z) UTC[2] |
| Rocket | Proton-K/D |
| Launch site | Baikonur 81/24 |
| End of mission | |
| Disposal | Launch failure |
| Decay date | September 27, 1969 |
| Orbital parameters | |
| Reference system | Geocentric[2] |
| Perigee altitude | 184 km (114 mi) |
| Apogee altitude | 189 km (117 mi) |
| Inclination | 51.5° |
| Period | 88.2 min |
Luna programme ← Luna 15 Kosmos 305 → Kosmos (satellites) ← Kosmos 299 Kosmos 301 → | |
Kosmos 300 (Russian: Космос 300 meaning Cosmos 300) (Ye-8-5 series) was the fourth Soviet attempt at an uncrewed lunar sample return. It was probably similar in design to the later Luna 16 spacecraft. It was launched, on a Proton rocket, on September 23, 1969.[3] The mission was a failure. The engines on the Block D upper stage failed due to an oxidizer leak, leaving the spacecraft to burn up in Earth's atmosphere.[4]
References
- ^ "NASA NSSDC Master Catalog - Cosmos 300". Retrieved 25 May 2024.
- ^ a b "Luna Ye-8-5 - Encyclopedia Astronautica". Retrieved 25 May 2024.
- ^ "Luna - Exploring the Moon". orbitalfocus.uk. Retrieved February 23, 2023.
- ^ Siddiqi, Asif A. (2018). "Kosmos 300 [Luna]" (PDF). Beyond Earth: A Chronicle of Deep Space Exploration, 1958-2016. NASA History Program Office: 92. Retrieved February 23, 2023.
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