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// communications · 2012

Intelsat 21

Communications satellite. Intelsat 21 was launched on August 19, 2012 aboard a Zenit-3SL from Kiritimati (Sea Launch). Latest status in GCAT: in orbit.

COSPAR 2012-045ANORAD 38749United States

Identity

Name in GCAT
Intelsat IS-21
Common name
Intelsat 21
International designator
2012-045A
NORAD catalog number
38749
GCAT identifier
S38749
UN registration
ST/SG/SER.E/711

Mission

Mission type
Communications
Use
Commercial
Program
IntIS
Owner
Intelsat SA (US)
Country
United States
Builder
Boeing Satellite Development Center, El Segundo
Platform (bus)
BSS-702MP

Launch

Date
August 19, 2012 · 06:54 UTC
Launch record
2012-045Success
Rocket
Zenit-3SL

Orbit and fate

Orbit class (GCAT)
GEO/D
Perigee
35,214 km
Apogee
35,787 km
Inclination
0.07°
Status
In orbit
Last known active
Feb 10, 2023

Size

Mass
5,984 kg
Dry mass
3,000 kg
Length
6.9 m
Diameter
3.20 m
Span
36.9 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q1357291 (CC0).