EchoStar XXI

EchoStar XXI
Mission typeCommunication
OperatorEchoStar Corporation
COSPAR ID2017-032A Edit this at Wikidata
SATCAT no.42749
Mission durationPlanned: 15+ years
Elapsed: 7 years, 6 months, 24 days
Spacecraft properties
BusSSL 1300
ManufacturerSpace Systems Loral
Launch mass6,871 kilograms (15,148 lb)
Start of mission
Launch date8 June 2017, 03:45 (2017-06-08UTC03:45Z) UTC
RocketILS Proton Breeze M
Launch siteBaikonur Cosmodrome
ContractorInternational Launch Services
Orbital parameters
Reference systemGeocentric
RegimeGeostationary
Longitude10.25° East
Perigee altitude35,784.4 kilometers (22,235.4 mi)
Apogee altitude35,801.8 kilometers (22,246.2 mi)
Inclination6.8 degrees
Period23.93 hours
Epoch22 July 2018, 15:03 UTC[1]
Transponders
BandS-band
Coverage areaEurope

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 2 GHz 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". 8 June 2017. 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". 26 April 2010. Retrieved 2018-07-22.


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