| 词条 | Vela 1B |
| 释义 |
| name = Vela 1B | image = Vela-1 satellite.jpg | image_alt = 130px | image_caption = Vela 1B | mission_type = | operator = USAF | website = | COSPAR_ID = 1963-039C | SATCAT = 00692 | mission_duration = 6 months (planned) | spacecraft_bus = | manufacturer = TRW | dry_mass = | launch_mass = {{convert|150|kg|lb}} | power = 90 W | launch_date = {{start-date|October 17, 1963, 02:24|timezone=yes}} | launch_rocket = Atlas-LV3 Agena-D | launch_site = Cape Canaveral LC-13 | launch_contractor = | entered_service = | disposal_type = | deactivated = | orbit_epoch = {{start-date|June 3, 2018}} | orbit_reference = Geocentric[1] | orbit_regime = Highly Elliptical | orbit_periapsis = {{convert|42,766.0|km|mi}} | orbit_apoapsis = {{convert|175,984.2|km|mi}} | orbit_inclination = 28.7° | orbit_semimajor = {{convert|115,746.0|km|mi}} | orbit_eccentricity = | orbit_period = 6,531.6 minutes | apsis = gee | instruments_list ={{Infobox spaceflight/Instruments | name1 = X-ray/Charged Particle | name2 = Gamma ray/Charged Particle | name3 = Neutron Detectors }} | instruments_name = | programme = Vela | previous_mission = Vela 1A | next_mission = Vela 2A }}Vela 1B was a military satellite developed to detect nuclear detonations to monitor compliance with the 1963 Partial Test Ban Treaty by the Soviet Union. It was released on October 17, 1963 from the Cape Canaveral Air Force Station, Florida, through an Atlas-Agena launch vehicle. Vela 1A was launched along with Vela 1A and with ERS 12.[2] Vela 1B was one of two spin stabilized {{convert|134|kg}} satellites comprising the first launch in a series of 6 Vela launches. Their objectives were to monitor nuclear weapons explosions in space and to study X-rays, gamma-rays, neutrons, and charged particles as the satellites passed through interplanetary space, the bow shock, the magnetosheath, and the magnetotail. The satellite operated in either a real-time mode (one data frame/sec) or a memory store mode (one data frame every 256 seconds). The spacecraft was operated in the real-time mode about 40% of the time and in the store mode for the rest of the time until the next Vela launch. At this time, tracking priority was given to the new spacecraft, and the older spacecraft was operated in the store mode only. There had been less and less data coverage of these satellites with each succeeding launch.[3] Specifications
See also
References1. ^{{cite web|url=http://www.n2yo.com/satellite/?s=00692/|title=VELA 1|work=N2YO.com|last=N2YO.com|access-date=June 3, 2018}} 2. ^{{cite web|url=http://www.astronautix.com/v/vela.html|title=Vela|work=Astronautix|first=Mark|last=Wade|access-date=June 3, 2018}} 3. ^{{cite web|url=https://nssdc.gsfc.nasa.gov/nmc/masterCatalog.do?sc=1963-039C|title=Vela 1B|last=NASA Goddard Space Flight Center|access-date=June 3, 2018}} {{PD-notice}} External links
3 : 1963 in spaceflight|Military space program of the United States|Derelict satellites orbiting Earth |
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