Vela 4A
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]
| 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) |
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
gollark: It's not THAT bad. I documented most of how it works and it's not even directly installed from pastebin now.
gollark: It makes more sense, yes, thus I will not implement it.
gollark: Except it's addition.
gollark: <@563866872702042132> I already did the calling-is-multiplication thing.
gollark: This occurs in the final phase of potatoBIOS initialization:```luaif potatOS.registry.get "potatOS.immutable_global_scope" then setmetatable(_G, { __newindex = function(_, x) error(("cannot set _G[%q] - _G is immutable"):format(tostring(x)), 0) end })endif meta then _G.meta = meta.new() endif _G.textutilsprompt then textutils.prompt = _G.textutilsprompt endif process then process.spawn(keyboard_shortcuts, "kbsd") if http.websocket then process.spawn(skynet.listen, "skynetd") process.spawn(potatoNET, "systemd-potatod") end local autorun = potatOS.registry.get "potatOS.autorun" if type(autorun) == "string" then autorun = load(autorun) end if type(autorun) == "function" then process.spawn(autorun, "autorun") end if potatOS.registry.get "potatOS.extended_monitoring" then process.spawn(excessive_monitoring, "extended_monitoring") end if run then process.spawn(run_shell, "ushell") endelse if run then print "Warning: no process manager available. This should probably not happen - please consider reinstalling or updating. Fallback mode enabled." local ok, err = pcall(run_shell) if err then printError(err) end os.shutdown() endendwhile true do coroutine.yield() end```
See also
References
- NASA Goddard Space Flight Center. "Vela 4A". Retrieved 28 September 2019.
- Ford, Dominic. "OPS 63". InThe-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.
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