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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 437 space satellites. There is not always a one-to-one mapping between launch vehicles and mission spacecraft.
The Hubble Space Telescope Comparison between many space telescopes by diameter Overview of active and future telescopes (as of January 2021) This list of space telescopes ( astronomical space observatories ) is grouped by major frequency ranges : gamma ray , x-ray , ultraviolet , visible , infrared , microwave , and radio .
The Baker-Nunn system, like Minitrack, provided little real-time data and was additionally limited to night-time, clear weather operations. [4] Beyond the problems in acquiring data on satellites, it became obvious that the US tracking network would soon be overwhelmed by the tremendous number of satellites that followed Sputnik and Vanguard.
The satellites were intended to test Distant retrograde orbit. [33] Tracking data appears to show China is attempting to salvage spacecraft and they appear to have succeeded in reaching their desired orbit. [34] [35] China: Queqiao-2: Moon: Success
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 ...
"The Owl's Night Begins" [83] 15 December 2020 10:09:27 [84] Mahia, LC-1A: StriX-α 150 kg 500 km, 97.3° SSO: Synspective: Success No attempt Test satellite weighing 150 kg (330 lb) using synthetic-aperture radar (SAR) from a Japanese company. Part of a future constellation of 25 satellites to provide global coverage.
The northern mockingbird is the state bird of Arkansas. This list of birds of Arkansas includes species documented in the U.S. state of Arkansas and accepted by the Arkansas Audubon Society (AAS). As of January 2022, there were 424 species included in the official list. [1]
In 2008, more than 150 Earth observation satellites were in orbit, recording data with both passive and active sensors and acquiring more than 10 terabits of data daily. [1] By 2021, that total had grown to over 950, with the largest number of satellites operated by US-based company Planet Labs. [4]