How Can We Help?
Vela 4A (also known Vela 7 and OPS 6638[3]) was an American reconnaissance satellite to detect explosions and nuclear tests on land and in space. It was released together with Vela 4B, ERS 18, OV5 1 and OV5 3.[4]
The ship remains in orbit around Earth.
Instruments
- 2 optical bhangmeters observing Earth
- 12 external X-ray detectors
- 18 internal neutron and gamma-ray detectors
See also
References
- ^ NASA Goddard Space Flight Center. "Vela 4A". Retrieved 28 September 2019.
This article incorporates text from this source, which is in the public domain.
- ^ Ford, Dominic. "OPS 63". In-The-Sky.org. Retrieved 28 September 2019.
- ^ Antonín Vítek. "1967-040A - Vela 7". Space 40. Retrieved 28 September 2019.
- ^ Krebs, Gunter. "Vela 7, 8, 9, 10, 11, 12 (advanced Vela)". Gunter's Space Page. Retrieved 28 September 2019.
Recent Comments