Payload:
SES-1 communications satellite
Star 2.4E
Separated spacecraft mass: Approx 2,550 kg (5,622 lbs)

Launch Vehicle: 
Proton M/Breeze M
691,000 kg (1,523,000 lbs), including payload
56.2 m (184 ft)

Launch Date: 
April 24, 2010

Launch Time: 
17:19 Baikonur
11:19 GMT
07:19 EDT

Launch Site:
Baikonur Cosmodrome, Kazakhstan Launch Pad 39

Launch Customer:
SES WORLD SKIES, Princeton, NJ

Satellite Manufacturer:
Orbital Sciences Corporation, Dulles, Va

Launch Vehicle Manufacturer:
Khrunichev State Research and Production Space Center, Moscow

Launch Services Provider:
International Launch Services, Reston, Va

Satellite Use:
SES-1 is the 26th satellite in the SES WORLD SKIES fleet, which is part of the 42 spacecraft constellation of parent company SES. The satellite replaces AMC-2 and AMC-4 at 101° west longitude, delivering communications services to customers in the enterprise, government and media sectors from the center of the North American arc. The satellite powers networks encompassing thousands of VSAT terminals, and delivers high-definition video channels that constitute part of SES WORLD SKIES’ extensive HD-PRIME television neighborhood. SES-1 is the first of a new generation of SES WORLD SKIES satellites bearing the “SES” name, joining the existing line of AMC satellites over North America and the NSS satellites covering the rest of the world.

Satellite Statistics: 
__24 Active C-band transponders
__24 Active Ku-band transponders
__Orbital location: 101 west longitude
__Anticipated service life: 16 years

Mission Profile: 
The Proton M launch vehicle, utilizing a 4-burn Breeze M mission design, will lift off from Pad 39 at Baikonur Cosmodrome, Kazakhstan, with the SES-1 satellite on board. The first three stages of the Proton will use a standard ascent profile to place the orbital unit (Breeze M upper stage and the SES-1 satellite) into a sub-orbital trajectory.  From this point in the mission, the Breeze M will perform planned mission maneuvers to advance the orbital unit first to a circular parking orbit, then to an intermediate orbit, followed by a transfer orbit, and finally to a near geostationary orbit.  Separation of the SES-1 satellite is scheduled to occur approximately 8 hours, 58 minutes after liftoff.

Target Orbit at Separation:
Apogee: 33,871 km (21,046 miles)
Perigee:  33,871 km (21,046 miles)
Inclination: 0.0 degrees

Spacecraft Separation:
Approximately 8 hours, 58 minutes after liftoff

ILS Mission Statistics: 
__3rd ILS Launch in 2010/ 5th Proton Launch in 2010
__59th Proton Launch for ILS
__17th SES Group Satellite Launched with ILS Proton
__3rd Orbital Satellite Launched with ILS

ILS Proton SES-1 Live Launch Broadcast:

US Domestic C-Band satellite time from IMG will start at 0630 April 24th for test signal
European test signals will start at 0630 Eastern, 1630 Baikonur April 24th 2010
BAIKONUR to US signal starts at 0600 Eastern, 1600 Baikonur
Live Coverage starting at 0700 Eastern April 24th 2010
Launch is scheduled for 0719 Eastern April 24th, 2010
Launch Broadcast concludes no later than 0800 Eastern April 24th, 2010 – firm out

Web cast can be seen at:
http://amc4r42410.imgondemand.com/

In North America the broadcast may be seen on:
SES AMC-3C
C-band analog NTSC
Channel C16
Orbital location:  87 degrees West
36 MHz.
U/L frequency 6245.0 Horizontal
D/L frequency 4020.0 Vertical

In Europe and Russia the broadcast may be seen on:
Satellite:  NSS-7
TXP ENV8/EUH8 – AB
Orbital Position 338 degrees East
Band: KU 625 PAL
Bandwidth 9 Mhz
UPLINK Frequency 14474.5 Vertical
Downlink Frequency: 11684.5 Horizontal
Sym Rate 5.632
FEC ¾
4:2:0 MPEG 2

At the launch site the broadcast may be seen on:
Arqiva London to turn NSS7 to W2A
Satellite:  W2A
Channel – D10 CH-E+
Orbital location:  10 degrees East
Bandwidth:  9 MHz
Uplink frequency – 13960.833 Vertical
Downlink frequency – 11660.833 Horizontal
Symbol Rate – 5.632
FEC – 3/4
4:2:0 MPEG 2

More Information:
Live Web cast at www.ilslaunch.com will begin approximately 20 minutes before liftoff. General mission information and launch status updates are available at the Web site or on the ILS U.S. domestic Launch Hotline at 1-800-852-4980.