EchoStar XXI

EchoStar XXI
Mission type Communication
Operator EchoStar Corporation
COSPAR ID 2017-032A
SATCAT no. 42749
Mission duration 15+ years
Spacecraft properties
Bus SSL 1300
Manufacturer Space Systems Loral
Launch mass 6,871 kilograms (15,148 lb)
Start of mission
Launch date 8 June 2017, 03:45 (2017-06-08UTC03:45Z) UTC
Rocket ILS Proton Breeze M
Launch site Baikonur Cosmodrome
Contractor International Launch Services
Orbital parameters
Reference system Geocentric
Regime Geostationary
Longitude 10.25° East
Perigee 35,784.4 kilometers (22,235.4 mi)
Apogee 35,801.8 kilometers (22,246.2 mi)
Inclination 6.8 degrees
Period 23.93 hours
Epoch 22 July 2018, 15:03 UTC[1]
Transponders
Band S-band
Coverage area Europe

EchoStar XXI (formerly known as 'TerreStar 2'[2]) is a European communications satellite which is operated by Echostar Corporation. It was constructed by Space Systems/Loral, based on the SSL 1300 satellite bus, and carries S band transponders which will be used to provide 2GHz mobile connectivity throughout Europe.

EchoStar XXI was launched at 03:45 UTC on June 8, 2017.[3] from the Baikonur Cosmodrome in Kazakhstan. This satellite was the heaviest commercial payload flown aboard a Russian booster at the time of its launch. [4]

Before being launched, the satellite was known as TerreStar-2, a ground spare for TerreStar Networks' satellite-terrestrial telephone network.[5].

References

  1. ↑ "EchoStar XX1 Satellite details 2017-032A NORAD 42749". N2YO. 22 July 2018. Retrieved 22 July 2018.
  2. ↑ "Echostar 21". Retrieved 2018-07-22.
  3. ↑ "EchoStar XXI Satellite Successfully Launched". EchoStar Corporation. 2017-06-08. Retrieved 2018-07-22.
  4. ↑ "Video: Proton rocket returns to service with launch of EchoStar 21". Retrieved 2018-07-22.
  5. ↑ "TerreStar-2 in Final Payload Integration". Retrieved 2018-07-22.


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