EchoStar XXI

Launch Success

Liftoff Time (GMT)

03:45:00

Thursday June 8, 2017

Watch Replay

Official Livestream

Mission Details

Read Article

EchoStar XXI

Wiki

Space Systems/Loral (SS/L) announced in April 2005 completed design reviews of TerreStar Networks, Inc.'s geostationary satellite, TerreStar-1, and entered into the construction phase of the Mobile Satellite Services (MSS) program. The TerreStar satellite, together with an Ancillary Terrestrial Component (ATC), is designed to provide next-generation, 2 GHz mobile voice and data communications, monitoring, and messaging services throughout the United States. Scheduled for delivery in 2007, TerreStar-1 has a service life of 15 years and will carry a state-of-the-art MSS payload featuring a large unfurlable reflector. The satellite will be capable of generating hundreds of spot beams covering the Continental U.S., Canada, Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands. SS/L's contract with TerreStar also includes an option for the construction of a second satellite, TerreStar-2. An FCC decision earlier this year opened the door for TerreStar Networks, and other select satellite operators, to incorporate an ATC with its satellite-delivered communications service. The previously unavailable 2 GHz frequency band will allow MSS operators to provide advanced mobile voice and data services. These services will be enhanced by ATC technology, which allows for coverage in areas where a satellite's signal could be blocked, including urban canyons, dense forests, or other areas out of the satellite's line of sight.

Geostationary Transfer Orbit

1 Payload

6,871 kilograms

Rocket

Active
Proton-M/Briz-M

Active Since 2001

Khrunichev State Research and Production Space Center logo

Manufacturer

Khrunichev

Price

$65.00 million

Rocket

Height: 58.18m

Payload to Orbit

LEO: 21,000 kg

GTO: 6,900 kg

Liftoff Thrust

10,027 Kilonewtons

Fairing

Diameter: 4.35m

Height: 15.26m

Stages

4

Launch Site

Site 81/24

Baikonur Cosmodrome, Kazakhstan

Fastest Turnaround

6 days

Stats

Proton-M


99th

Mission

1st

Mission of 2017

2017


34th

Orbital launch attempt