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// communications · 2017

EchoStar 21

European communications satellite. EchoStar 21 was launched on June 8, 2017 aboard a Proton-M/Briz-M from Baikonur. Latest status in GCAT: in orbit.

COSPAR 2017-032ANORAD 42749Ireland

Identity

Name in GCAT
Echostar 21
Common name
EchoStar 21
Payload designation
Terrestar 2
International designator
2017-032A
NORAD catalog number
42749
GCAT identifier
S42749
UN registration
ST/SG/SER.E/831

Mission

Mission type
Communications
Use
Commercial
Program
Echostar
Owner
Echostar Mobile
Country
Ireland
Builder
SS/Loral (MDA)
Platform (bus)
LS-1300

Launch

Date
June 8, 2017 · 03:45 UTC
Launch record
2017-032Success
Spaceport
Baikonur · pad LC81/24

Orbit and fate

Orbit class (GCAT)
GEO/I
Perigee
35,779 km
Apogee
35,794 km
Inclination
7.40°
Status
In orbit
Last known active
Feb 25, 2023

Size

Mass
6,871 kg
Dry mass
3,000 kg
Length
7.6 m
Diameter
2.80 m
Span
32.4 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q18470367 (CC0).