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  2. List of NRO launches - Wikipedia

    en.wikipedia.org/wiki/List_of_NRO_launches

    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 USA-307 USA-308 15 July 2020 13:46 UTC MARS, LP-0B: Minotaur IV / Orion 38: 580 × 574 km × 54.0° [135] Entered service, presumed active Four payloads.

  3. Starlink - Wikipedia

    en.wikipedia.org/wiki/Starlink

    Starlink provides satellite-based internet connectivity to underserved areas of the planet, as well as competitively priced service in more urbanized areas. [93] In the United States, Starlink charged, at launch, a one-time hardware fee of $599 for a user terminal and $120 per month for internet service at a fixed service address. [94]

  4. List of Starlink and Starshield launches - Wikipedia

    en.wikipedia.org/wiki/List_of_Starlink_and_Star...

    First launch of Starlink "operational" satellites (v1.0), [33] with an increased mass of 260 kg each and included Ka-band antennas. [34] Satellites were released in a circular orbit at around 290 km altitude, from which the satellites raised their altitude by themselves. 3 Launch 2 v1 2020-001 7 January 2020, 02:19:21 [35] Cape Canaveral, SLC-40

  5. Sun-synchronous orbit - Wikipedia

    en.wikipedia.org/wiki/Sun-synchronous_orbit

    For example, a satellite in Sun-synchronous orbit might ascend across the equator twelve times a day, each time at approximately 15:00 mean local time. Sun-synchronous orbit from a top view of the ecliptic plane with local solar time (LST) zones for reference and a descending node of 10:30. The LST zones show how the local time beneath the ...

  6. SpaceX Starshield - Wikipedia

    en.wikipedia.org/wiki/SpaceX_Starshield

    After the launch of Starlink Group 7-16, only 20 of a batch of 22 starlink satellites were catalogued, and the remaining two were later designated as USA-350 and USA-351. [ 36 ] This section is an excerpt from List of Starlink and Starshield launches § Starshield .

  7. Satellite Internet access - Wikipedia

    en.wikipedia.org/wiki/Satellite_Internet_access

    How satellite internet works. Satellite Internet generally relies on three primary components: a satellite – historically in geostationary orbit (or GEO) but now increasingly in Low Earth orbit (LEO) or Medium Earth orbit MEO) [23] – a number of ground stations known as gateways that relay Internet data to and from the satellite via radio waves (), and further ground stations to serve each ...

  8. Satellite internet constellation - Wikipedia

    en.wikipedia.org/wiki/Satellite_internet...

    A satellite internet constellation is a constellation of artificial satellites providing satellite internet service.In particular, the term has come to refer to a new generation of very large constellations (sometimes referred to as megaconstellations [1]) orbiting in low Earth orbit (LEO) to provide low-latency, high bandwidth internet service. [2]

  9. Collision avoidance (spacecraft) - Wikipedia

    en.wikipedia.org/wiki/Collision_avoidance...

    While the number of satellites launched into orbit is relatively low in comparison to the amount of space available in orbit around the Earth, risky near-misses and occasional collisions happen. The 2009 satellite collision entirely obliterated both spacecraft and resulted in the creation of an estimated 1,000 new pieces of space debris larger ...