Vela 4B

Vela 4B
Operator	USAF
COSPAR ID	1967-040B
SATCAT no.	2766
Spacecraft properties
Manufacturer	TRW
Launch mass	225 kilograms (496 lb)
Power	120 W
Start of mission
Launch date	April 28, 1967, 10:01 UTC
Rocket	Titan 3C-10
Launch site	Cape Canaveral LC-41
Orbital parameters
Reference system	Geocentric
Regime	Highly Elliptical
Perigee altitude	107,337 kilometres (66,696 mi)
Apogee altitude	114,612 kilometres (71,217 mi)
Inclination	33.06°
Period	6,671.8 minutes (111.197 h)
Epoch	1 May 1967
	Vela ← Vela 4A Vela 5A →

Vela 4B (also known Vela 8 and OPS 6679 ^[3]) was an American reconnaissance satellite to detect explosions and nuclear tests on land and in space. It was released together with Vela 4A , ERS 18 , OV5 1 and OV5 3 . ^[4]

Instruments [ edit ]

2 optical bhangmeters observing Earth
12 external X-ray detectors
18 internal neutron and gamma-ray detectors

References [ edit ]

^ NASA Goddard Space Flight Center. "Vela 4B" . Retrieved 28 September 2019 . This article incorporates text from this source, which is in the public domain .
^ Ford, Dominic. "OPS 6679" . In-The-Sky.org . Retrieved 28 September 2019 .
^ Antonin Vitek. "1967-040B - Vela 8" . 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 .

This article about one or more spacecraft of the United States is a stub . You can help Wikipedia by expanding it .

[1] NASA Goddard Space Flight Center. "Vela 4B" . Retrieved 28 September 2019 . This article incorporates text from this source, which is in the public domain .

[2] Ford, Dominic. "OPS 6679" . In-The-Sky.org . Retrieved 28 September 2019 .

[3] Antonin Vitek. "1967-040B - Vela 8" . 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 .

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Instruments [ edit ]

See also [ edit ]

References [ edit ]