Carried the Telstar 5 communications satellite, but a failure of the Block DM-3 upper stage left it stranded in a useless high-inclination orbit; the insurance write-off was later acquired by Hughes and repositioned via lunar swing-bys to become the HGS-1 satellite by mid-1998.
- Outcome
- Success
- Orbit
- Direct-GEO
- Geostationary orbit
- Payload to orbit
- 4.7 T
- Flight
- 5th
- of 41 Proton-K/DM-2M flights
- Date and time
- 24 May 1997, 17:00 UTC
- Rocket
- Proton-K/DM-2M
- Builder
- Khrunichev
- Launch site
- 81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Communications
- International designator
- 1997-026
- Launches in 1997
- 28th of 89
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