Progress 4, an uncrewed cargo freighter launched on a Soyuz-U from Baikonur Site 1/5 to resupply the Salyut 6 space station with propellant, food, water, and equipment for the resident EO-2 crew.
- Outcome
- Success
- Payload to orbit
- 9.4 T (est.)
- Flight
- 120th
- of 714 Soyuz U flights
- Date and time
- 3 October 1978, 23:09 UTC
- Rocket
- Soyuz U
- Builder
- Progress RSC
- Launch site
- 1/5, Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Unknown
- International designator
- 1978-090
- Launches in 1978
- 93rd of 128
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
View satellites in Space Atlas