Proton | Raduga 27
The Communications flight Proton | Raduga 27 departed Baikonur Cosmodrome, Republic of Kazakhstan atop a Proton, bound for Direct-GEO.
- Launch time
- Status
- SUCCESS
- Operator
- Soviet Space Program
- Mission type
- Communications
- Rocket
- Proton
- Launch site
- Baikonur Cosmodrome, Republic of Kazakhstan
- Launch pad
- 81/23 (81L)
- Payload
- —
- Target orbit
- Direct-GEO

Mission timeline
- 1991-02-28T05:30:00.000ZLiftoff confirmed — Proton is airborne.
- Max Q — Proton endures peak structural stress during ascent.
- The mission reaches Direct-GEO, successfully entering orbit.
- The mission concludes successfully.