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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.
True color image of the Earth from space. This image is a composite image collected over 16 days by the MODIS sensor on NASA’s Terra satellite. NASA Earth science satellite fleet as of September 2020, planned through 2023. Earth observation satellite missions developed by the ESA as of 2019.
By 2012, the CSA's contribution to program funding had risen by CDN$3.4M to CDN$8.8M, implying a total program contracted-out cost to end of satellite commissioning of CDN$15.4M. [24] However, according to a Canadian Space Agency audit, the total program cost by the end of 2013 was CDN$25M, including both CSA and DRDC costs, with CSA's portion ...
This is a list of satellites and spacecraft which have been given USA designations by the United ... Training satellite Delta 3910: SDI: Deorbited: 1988-03-01 USA-31: ...
Ground track example from Heavens-Above.An observer in Sicily can see the International Space Station when it enters the circle at 9:26 p.m. The observer would see a bright object appear in the northwest, which would move across the sky to a point almost overhead, where it disappears from view, in the space of three minutes.
The World Teleport Association publishes lists of companies based on revenues from all customized communications sources and includes operators of teleports and satellite fleets. In order from largest to smallest, the Global Top 20 of 2021 were: [1] [2] SES (Luxembourg) Intelsat S.A. (Luxembourg) EchoStar Satellite Services (USA) Hughes Network ...
This is a list of NRO Launch ... Likely the seventh so called Mentor/Orion satellite for the National Security Agency. [64] L-38 [65] Drake USA-236 20 June 2012
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