Space Launch CalendarSiluet No. 1 on Soyuz-U, 1981-02-18 (Success)
ResultSuccess
Date1981-02-18 09:00 UTC
VehicleSoyuz-USoyuz-U
Soyuz-U flight no.229success rate so far 97%
No. in 198116 / 124orbital attempts
Agency countrySoviet UnionRVSN
| Item | Value |
|---|---|
| Launch site | NIIP-5, Baykonur, Kazakstan |
| Payload | Siluet No. 1 |
| GCAT launch tag | 1981-015 |
| Mass to orbit | 6.3 t |
Neighbouring Soyuz-U launches
| Date | Payload | Vehicle | Site | Result |
|---|---|---|---|---|
| 1981-01-06 | Zenit-6 | Soyuz-U | NIIP-53 | Success |
| 1981-01-16 | Orion | Soyuz-U | NIIP-53 | Success |
| 1981-01-20 | Feniks No. 975 | Soyuz-U | NIIP-5 | Success |
| 1981-01-24 | Progress 7K-TG No. 113 | Soyuz-U | NIIP-5 | Success |
| 1981-02-13 | Zenit-6 | Soyuz-U | NIIP-53 | Success |
| 1981-02-18 | Siluet No. 1 | Soyuz-U | NIIP-5 | Success |
| 1981-03-05 | Feniks No. 940 | Soyuz-U | NIIP-53 | Success |
| 1981-03-12 | Soyuz 7K-ST No. 10L | Soyuz-U | NIIP-5 | Success |
| 1981-03-17 | Zenit-6 | Soyuz-U | NIIP-5 | Success |
| 1981-03-22 | Soyuz 7K-T No. 55 | Soyuz-U | NIIP-5 | Success |
| 1981-03-28 | Feniks No. 979 | Soyuz-U | NIIP-5 | Failure |
Soyuz-U launches per year
Counts orbital launch attempts (successes and failures); suborbital flights excluded. Countries are those of the launching agency.