ILS Proton to Launch AMC-9 Satellite

Payload:

• AMC-9
• Spacebus 3000B3 platform
• Separated mass: approx. 4,100 kg
• (9,039 lbs)

Launch Vehicle:

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

Launch Date:

• April 29, 2003 (Baikonur)
• April 28, 2003 (GMT, U.S.)

Launch Window Opens:

• 4:15 a.m. Baikonur
• 22:15 GMT
• 6:15 p.m. EDT

Launch Site:

• Baikonur Cosmodrome, Kazakhstan Pad 39

End User:

• SES AMERICOM, Princeton, N.J. Part of SES GLOBAL family of companies

Satellite Manufacturer:

• Alcatel Space, Cannes, France

Launch Vehicle Manufacturer:

• Khrunichev State Research and Production, Space Center, Moscow

Launch Services Provider:

• International Launch Services, McLean, Va.

Satellite Use:

High-power communications satellite
operating at C- and Ku-band to expand
digital television broadcasting, data
transmission and telecommunications
services to North America

Satellite Statistics:

• — 1st delivery-in-orbit launch for Alcatel by ILS
• — 8th Alcatel satellite launched by ILS
• — 5th ILS launch for AMERICOM
• — 16th in SES AMERICOM constellation
• — Orbital location: 85 degrees West longitude
• — Anticipated service life of 15 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 180 km (112 miles), inclined at 51.6
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 the
geostationary altitude of 36,000 km
(22,300 miles).

Target Orbit at Separation:

• Apogee: 35,786 km
• Perigee: 6,661 km
• Inclination: 17.54 degrees

Spacecraft Separation:

• Approximately 8 hours, 55 minutes after liftoff

ILS Mission Statistics:

• — 300th Proton launch
• — 1st ILS Proton mission this year
• — 2nd ILS mission this year
• — 27th ILS mission on Proton since formation of the U.S.- Russian joint venture in 1995 — 2nd ILS launch in a month

Live Broadcast in U.S.:

AMC-4, 101 degrees West, analog, transponder 22/C-band, downlink 4140MHz (H);digital, transponder 21/Ku-band, downlink 12120 MHz (V), FEC 3/4, 30 Msyms. Test signals start at 5:30 p.m. April 28 EDT
in Europe: ASTRA 1G, 19.2 degrees East,transponder 108, downlink 12551 MHz (V)
FEC 5/6

in Asia:
Spacenet 4, 172 degrees East, digital, transponder 11/C-band, downlink 3913.5 MHz (H), FEC 3/4, 6.11 Msyms

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
800/852-4980.