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This timeline of artificial satellites and space probes includes uncrewed spacecraft including technology demonstrators, observatories, lunar probes, and interplanetary probes. First satellites from each country are included. Not included are most Earth science satellites, commercial satellites or crewed missions.
Samples of three GPS satellites' orbits over a five-year period (2013 to 2018) USA-242 · USA-239 · USA-151 · Earth As of 19 December 2024, 83 Global Positioning System navigation satellites have been built: 30 are launched and operational, 1 is launched and undergoing the commissioning process, 3 are in reserve or testing, 43 are retired, 2 were lost during launch, and 1 prototype was never ...
RASR-5. Four satellites. First NRO launch on an Electron from Wallops, VA. L-126: USA 438, USA 339 30 November 2024 8:10 [131] VSFB, SLC-4E: Falcon 9 Block 5: LEO: Entered service, presumed active NRO's Proliferated Architecture Mission of 2 Starshield satellites with 20 Starlink Group N-01 satellites.. [132] L-129 [133] [134] USA-305 USA-306 ...
Series 3 satellites are Sun-synchronous and series 2 and 4 satellites are geosynchronous. Formosat-5: Active Taiwan’s National Space Organization (NSPO) 2017 Gaofen-2: Active CNSA: 2014 Gaofen-3: Active CNSA: 2016 GOES-16 and 17: Active NASA 2016 Geostationary Operational Environmental Satellite. Collects weather observations. See also: List ...
A day after launch an amateur astronomer in the Netherlands was one of the first to publish a video showing the satellites flying across the sky as a "train" of bright lights. [31] By five weeks post launch, 57 of the 60 satellites had been "healthy" while 3 were non-operational and derelict, but deorbited due to atmospheric drag. [32]
The site says the satellites are only visible for about four minutes. In the Sacramento area, residents should be able to get a good view of the satellites on the following days: 5:55 p.m. on ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 2 January 2025. Objects intentionally placed into orbit This article is about human-made satellites. For moons, see Natural satellite. For other uses, see Satellite (disambiguation). Two CubeSats orbiting around Earth after being deployed from the ISS KibÅ module's Small Satellite Orbital Deployer A ...
These designations have been applied to most United States military satellites since 1984, and replaced the earlier OPS designation. As of June 2022, USA designations have been assigned to 462 space satellites. There is not always a one-to-one mapping between launch vehicles and mission spacecraft.