Space Launch CalendarBion No. 4 on Soyuz-U, 1977-08-03 (Success)
ResultSuccess
Date1977-08-03 14:01 UTC
VehicleSoyuz-USoyuz-U
Soyuz-U flight no.71success rate so far 96%
No. in 197775 / 128orbital attempts
Agency countrySoviet UnionRVSN
| Item | Value |
|---|---|
| Launch site | 53-y Nauchno-Issledovatelskiy Ispitatelniy Poligon, |
| Payload | Bion No. 4 |
| GCAT launch tag | 1977-074 |
| Mass to orbit | 6.3 t |
Neighbouring Soyuz-U launches
| Date | Payload | Vehicle | Site | Result |
|---|---|---|---|---|
| 1977-06-30 | Zenit-2M | Soyuz-U | NIIP-53 | Success |
| 1977-07-12 | Zenit-4MKM | Soyuz-U | NIIP-53 | Success |
| 1977-07-20 | Zenit-4MKM | Soyuz-U | NIIP-5 | Success |
| 1977-07-27 | Zenit-6 | Soyuz-U | NIIP-53 | Success |
| 1977-07-29 | Zenit-2M | Soyuz-U | NIIP-53 | Success |
| 1977-08-03 | Bion No. 4 | Soyuz-U | NIIP-53 | Success |
| 1977-08-10 | Zenit-4MKM | Soyuz-U | NIIP-5 | Failure |
| 1977-08-24 | Zenit-4MKM | Soyuz-U | NIIP-53 | Success |
| 1977-08-27 | Zenit-2M | Soyuz-U | NIIP-53 | Success |
| 1977-09-02 | Fram | Soyuz-U | NIIP-53 | Success |
| 1977-09-06 | Yantar'-2K No. 7 | Soyuz-U | NIIP-53 | Success |
Soyuz-U launches per year
Counts orbital launch attempts (successes and failures); suborbital flights excluded. Countries are those of the launching agency.