Castor (D 5B) and Pollux (D 5A), French CNES technology/geodesy microsatellites for accelerometer and hydrazine-thruster tests plus aeronomy work. Diamant BP4 from Kourou ALD delivered both to LEO on the vehicle’s second flight.
- Outcome
- Success
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- 108 kg
- Flight
- 2nd
- of 3 Diamant BP4 flights
- Date and time
- 17 May 1975, 10:32 UTC
- Rocket
- Diamant BP4
- Builder
- SEREB
- Launch site
- Diamant Launch Area, Guiana Space Centre, French Guiana
- Payload
- Earth Science
- International designator
- 1975-039
- Launches in 1975
- 42nd of 132
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
View satellites in Space Atlas