 | |
| Operator | USAF |
|---|---|
| COSPAR ID | 1967-040A[1] |
| SATCAT no. | 2765[2] |
| 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 III-C |
| Launch site | Cape Canaveral LC-41 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Highly Elliptical |
| Semi-major axis | 117,619 kilometres (73,085 mi) |
| Perigee altitude | 53,631.5 kilometres (33,325.1 mi) |
| Apogee altitude | 161,866.1 kilometres (100,578.9 mi) |
| Inclination | 19.9° |
| Period | 6,690.8 minutes (111.513 h) |
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
[edit]- 2 optical bhangmeters observing Earth
- 12 external X-ray detectors
- 18 internal neutron and gamma-ray detectors
See also
[edit]References
[edit]- ^ 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.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction