Heaviest satellite launched by Echostar Satellite Services, LLC into space at 6,900 kg
Echostar 21 is a commercial satellite operated by Echostar Satellite Services, LLC (USA) for the purpose of communications.
Delivered via Proton (launch vehicle) from Baikonur Cosmodrome, it was launched into space on 7 June 2017 and orbits the Earth as a GEO satellite. Echostar 21 was constructed by Space Systems/Loral (USA).
Designed with an operational lifetime of 15 years, Echostar 21 has a launch mass of 6,900 kg and navigates with the COSPAR ID 2017-032A and NORAD ID 42749.
Echostar 21 orbits along the longitude of 10 degrees at an inclination of 7 degrees.
The satellite's perigee, which is the point of the orbit closest to the Earth's center of mass, is 35,773km while its apogee, which is the point of the orbit farthest from the Earth's center of mass, is 35,799km. Its orbit has an eccentricity of 3.08E-04 and it takes 1,436 minutes to orbit the Earth.