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AMC-23

Names	GE-2i Worldsat-3 AMC-13 GE-23 Eutelsat-172A Eutelsat-174A
Mission type	Communications
Operator	SES Americom (2005-2009) SES World Skies (2009-2011) SES S.A. (2011-2012) Eutelsat (2012-present)
COSPAR ID	2005-052A
SATCAT no.	28924
Mission duration	16 years (planned) 19 years, 18 days (elapsed)
Spacecraft properties
Spacecraft	GE-23
Spacecraft type	Spacebus 4000
Bus	Spacebus 4000C3
Manufacturer	Alcatel Space
Launch mass	4,981 kg (10,981 lb)
Start of mission
Launch date	29 December 2005, 02:28:40 UTC
Rocket	Proton-M / Briz-M
Launch site	Baikonur Cosmodrome, Site 81/24
Contractor	Khrunichev State Research and Production Space Center
Entered service	Mars 2006
Orbital parameters
Reference system	Geocentric orbit
Regime	Geostationary orbit
Longitude	186° West
Transponders
Band	38 (+10) transponders: 18 (+4) C-band 20 (+6) Ku-band
Coverage area	Asia-Pacific, West Coast of the United States
SES constellation← AMC-21

AMC-23 (formerly GE-23) is an American geostationary communications satellite that was launched by a Proton-M / Briz-M launch vehicle at 02:28:40 UTC on 29 December 2005. The 4,981 kg (10,981 lb) satellite to provide services to the Asia-Pacific, West Coast of the United States through separate beams to each region, after parking over the Pacific Ocean through its 18 (+4) C-band and 20 (+6) Ku-band transponders, over 186° West longitude.

GE-2i/AMC-13/Worldsat-3/AMC-23

AMC-13 was originally ordered as GE-2i. In early 2004, AMC-13 was transferred to Worldsat LLC, a new subsidiary of SES Americom as Worldsat 3. The original AMC-13 was to feature 60 C-Band transponders, but when transferred to Worldsat, it was ordered to be changed to the hybrid C-/Ku-band payload with 18 C-band and 20 Ku-band transponders. In early 2005, it was renamed AMC-23.

GE-23

In 2007, the satellite was spun-off from SES Americom to GE-Satellite, when General Electric split off from SES. After this transaction, the satellite was renamed GE-23.

Eutelsat-172A

Eutelsat has announced in June 2012 the acquisition of GE-23 satellite from GE-Satellite. The satellite is renamed to Eutelsat 172A and expands Eutelsat coverage to Asia-Pacific region and West Coast of United States of America. The satellite had at that time an estimated lifespan of 8.5 years.

Eutelsat-174A

In 2017, after Eutelsat 172B had replaced it, Eutelsat 172A was moved to 174° East and renamed Eutelsat 174A.

See also

• Spaceflight portal

References

1. ^ "AMC 23 → GE 23 → Eutelsat 172A → Eutelsat 174A". Gunter's Space Page. 21 July 2019. Retrieved 6 April 2021.
2. "Display: AMC 23 2005-052A". NASA. 10 February 2021. Retrieved 6 April 2021. This article incorporates text from this source, which is in the public domain.
3. ^ "Home - Satellites". Satbeams. 6 April 2021. Retrieved 6 April 2021.

• Communications satellites in geosynchronous orbit
• SES satellites
• Spacecraft launched in 2005