McLean, VA, 09-JUN-04 -- ILS Proton To Launch Intelsat Satellite

Payload: Intelsat 10-02
Eurostar E3000 platform
Spacecraft separated mass: approx. 5,575 kg (12,291 lbs)

Launch Vehicle: Proton M/Breeze M
Weight at liftoff: 691,272 kg (1.5 million lbs), including payload Height: 61 (200 ft)

Launch Date: June 16 (Baikonur)
June 15 (U.S. & GMT)

Launch Window Opens: 4:27 a.m. Baikonur
20:27 GMT
6:27 p.m. EDT

Launch Site: Baikonur Cosmodrome, Kazakhstan
Launch Pad 39

End User: Intelsat Ltd., global satellite telecommunications provider

Satellite Manufacturer: EADS Astrium, France

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

Launch Services Provider: International Launch Services, McLean, Va.

Satellite Use: Video, corporate networking, internet services and voice across Europe, Africa, the Middle East, South America and portions of Asia and North America.

Satellite Statistics: - Largest satellite built by EADS Astrium
- 36 Ku-band, 70 C-band transponders
- Most powerful in Intelsat's fleet
- Orbital location: 1 degree W (359 degrees E) longitude
- Anticipated service life of 13 years

Mission Profile: The Proton launch vehicle will inject the satellite into geosynchronous transfer orbit, using a five-burn Breeze M mission design. The first three stages of the Proton will use a standard ascent trajectory to place the Breeze M fourth stage, with the satellite, into a suborbital trajectory, from which the Breeze M will place itself and the spacecraft into a circular parking orbit of 173 km (107.5 miles), inclined at 51.5 degrees. Then the satellite will be propelled to its transfer orbit by additional burns of the Breeze M. Following separation from the Breeze M, the spacecraft will perform a series of liquid apogee engine burns to raise perigee, lower inclination and circularize the orbit at geostationary altitude.

Target Orbit at Separation: Apogee: 35,786 km (22,236 miles)
Perigee: 4,090 km (2,541 miles)
Inclination: 23.6 degrees

Spacecraft Separation: Approximately 9 hours, 10 minutes after liftoff

ILS Mission Statistics: - 6th ILS mission this year
- 2nd ILS Proton mission this year
- 29th ILS mission on Proton
- 307th Proton mission overall

Live Broadcast in U.S.: Galaxy 3, transponder 22/C-band, 95 degrees West
analog, downlink 4140 MHz (vertical)
Test signals start at 5:45 p.m. EDT

More Information: Live webcast and general mission information are available on the ILS web site at www.ilslaunch.com. Launch status updates are available on the ILS U.S. domestic Launch Hotline at 1-800-852-4980.