Proton 2 (N-4 No.2), a ~12,200 kg Soviet high-energy cosmic-ray and particle-physics observatory on a UR-500 test flight. Launched from Baikonur Site 81/23 on 2 November 1965 into LEO; it returned physics data until reentry on 6 February 1966.
- Outcome
- Success
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- 8.7 T
- Flight
- 2nd
- of 4 UR-500 flights
- Date and time
- 2 November 1965, 12:28 UTC
- Rocket
- UR-500
- Builder
- Khrunichev
- Launch site
- 81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Astrophysics
- International designator
- 1965-087
- Launches in 1965
- 98th of 124
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
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