SES-3

SES-3

Names	AMC ground spare OS-2
Mission type	Communications
Operator	SES Americom / SES
COSPAR ID	2011-035A
SATCAT no.	37748
Website	https://www.ses.com/
Mission duration	15 years (planned) 13 years, 4 months, 17 days (elapsed)
Spacecraft properties
Spacecraft	AMC ground spare
Spacecraft type	GEOStar-2
Bus	Star-2.4
Manufacturer	Orbital Sciences Corporation
Launch mass	3,112 kg (6,861 lb)
Power	5 kW
Start of mission
Launch date	15 July 2011, 23:16:10 UTC[1]
Rocket	Proton-M / Briz-M
Launch site	Baikonur, Site 200/39
Contractor	Khrunichev State Research and Production Space Center
Entered service	September 2011
Orbital parameters
Reference system	Geocentric orbit[2]
Regime	Geostationary orbit
Longitude	103° West
Transponders
Band	48 transponders: 24 C-band 24 Ku-band
Bandwidth	36 MHz
Coverage area	North America
SES constellation ← SES-2 SES-4 →

| SES-3 is a communications satellite operated by SES Americom (later SES World Skies. Now, SES).

SES-3 was built by Orbital Sciences Corporation (OSC), and is based on the Star-2.4 satellite bus. It is equipped with 24 C-band, and 24 Ku-band transponders, and at launch it had a mass of 3,112 kg (6,861 lb). It has a design life of fifteen years, however it was launched with enough fuel to operate for at least sixteen years, if its systems are still functional.^[3]

It was launched on 15 July 2011 at 23:16:10 UTC on a Proton-M / Briz-M launch vehicle, the launch was arranged by International Launch Services (ILS), since Baikonour, Site 200/39 alongside the KazSat-2 satellite.

It is positioned at 103.0° West orbital location over North America, replacing AMC-1. Clients include E. W. Scripps Company, In Demand, Pay-per-view, Ion Television, Mood Media, NBC and QVC.^[4]