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A two-line element set (TLE, or more rarely 2LE) or three-line element set (3LE) is a data format encoding a list of orbital elements of an Earth-orbiting object for a given point in time, the epoch. Using a suitable prediction formula, the state (position and velocity) at any point in the past or future can be estimated to some accuracy.
Celestrak provided by Dr. T.S. Kelso, includes visible objects, openly available [22] SpaceTrack maintained by the United States Strategic Command provides orbital information on unclassified satellites requires an account but is available for educational and hobbyist use as well as military, government and spacecraft and payload owners.
Starlink Group 9-3 Vandenberg SLC-4E: SpaceX: Starlink × 20 SpaceX: Low Earth: Communications: 13 July: Launch failure The Falcon 9 second-stage engine failed to complete its second ignition due to a liquid oxygen leak, causing the planned orbit to be missed and the deployment of the Starlink satellites in an unusable orbit. 19 July 03:03 [10 ...
But just because Starlink has hit 3 million subscribers, don't expect SpaceX to slow down, or sit on its space laurels. By the end of this year, experts forecast that Starlink will hit 3.8 billion ...
Starlink accounts for more than half of the 10,560 active satellites as of November 15, according to tracking by the Harvard astronomer Jonathan McDowell. SpaceX has filed for permission to fly ...
Starlink 3680 (or Starlink 2022-025P) launched in this stack has maneuvered and moved to Shell 1 of starlink satellites. Possibly some other satellites in this stack will also joining the Shell 1 Starlinks in near future. [82] 41 Group 4-12 v1.5 2022-029 19 March 2022, 04:42:30 [83] Cape Canaveral, SLC-40: 540 km (340 mi) 53.2° 53 47 Success 42
The European Commission on Monday awarded contracts to push forward delayed plans for a 10.6 billion euro ($11.13 billion) secure European satellite constellation in response to Elon Musk's ...
The International Designator, also known as COSPAR ID, is an international identifier assigned to artificial objects in space. [1] It consists of the launch year, a three-digit incrementing launch number of that year [n 1] and up to a three-letter code representing the sequential identifier of a piece in a launch.