Vela 4A

Summary

Vela 4A
OperatorUSAF
COSPAR ID1967-040A[1]
SATCAT no.2765[2]
Spacecraft properties
ManufacturerTRW
Launch mass225 kilograms (496 lb)
Power120 W
Start of mission
Launch dateApril 28, 1967, 10:01 (1967-04-28UTC10:01Z) UTC
RocketTitan III-C
Launch siteCape Canaveral LC-41
Orbital parameters
Reference systemGeocentric
RegimeHighly Elliptical
Semi-major axis117,619 kilometres (73,085 mi)
Perigee altitude53,631.5 kilometres (33,325.1 mi)
Apogee altitude161,866.1 kilometres (100,578.9 mi)
Inclination19.9°
Period6,690.8 minutes (111.513 h)
← Vela 3B
Vela 4B →
 

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, ORS 4, OV5 1 and OV5 3.[4]

The ship remains in orbit around Earth.

Instruments

See also

References

  1. ^ NASA Goddard Space Flight Center. "Vela 4A". Retrieved 28 September 2019. Public Domain This article incorporates text from this source, which is in the public domain.
  2. ^ Ford, Dominic. "OPS 63". InThe-Sky.org. Retrieved 28 September 2019.
  3. ^ Antonín Vítek. "1967-040A - Vela 7". Space 40. Retrieved 28 September 2019.
  4. ^ Krebs, Gunter. "Vela 7, 8, 9, 10, 11, 12 (advanced Vela)". Gunter's Space Page. Retrieved 28 September 2019.