ILS Proton to Launch EchoStar VIII

Payload: EchoStar VIII

Loral 1300 platform; Separated mass: approx. 4,660 kg (10,270 lbs)

Launch Vehicle: Proton K/Block DM

Weight at liftoff: 691,000 kg (1.5 million lbs), including payload

Height: 57.2 m (187.7 ft)

Payload fairing: 4.35 m (14.27 ft) diameter

Launch Date: Saturday, June 22, 2002

Launch Window Opens: 11:15 a.m. Baikonur

9:15 a.m. Moscow

5:15 GMT

1:15 a.m. EDT (USA)

Launch Site: Baikonur Cosmodrome, Kazakhstan; Launch Complex 81, Pad 23

End User: EchoStar Communications Corp., Littleton, Colo

Satellite Manufacturer: Space Systems/Loral, Palo Alto, Calif.

Launch Vehicle Manufacturer: Khrunichev State Research and Production Space
Center, Moscow – Proton first three stages; RSC Energia, near Moscow – Block
DM fourth stage

Launch Services Provider: International Launch Services (ILS), McLean, Va.

Satellite Use: High-powered direct broadcast satellite to enhance services
for DISH NetworkT, EchoStar’s state-of-the-art DBS entertainment service

Satellite Statistics:

8th satellite in EchoStar constellation

Orbital location: 110 degrees West longitude

Anticipated service life of 15 years

Mission Profile: The Proton launch vehicle will inject the EchoStar VIII
satellite into geosynchronous transfer orbit. The first three stages will
use a standard ascent trajectory to place the Block DM upper stage with the
satellite into a circular parking orbit of 160 km (100 mi), inclined at 51.6
degrees. Then the Block DM will ignite three times to propel the satellite
to a transfer orbit of 167 km x 3591.5 km (103.7 mi x 2,230 mi). Following
separation from the Block DM, 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 35,786 km (22,300 mi).

Spacecraft Separation: Approximately 6 hours, 36 minutes after liftoff

ILS Mission Statistics:

5th ILS mission this year

3rd ILS Proton mission this year

2nd ILS mision for EchoStar in 4 months

24th ILS mission on Proton since formation of the U.S.-Russian joint venture
in 1995

Mission Overview

Live Broadcast: Telstar 5, transponder 5, C-band Downlink frequency 3800 MHz
vertical; Signals to begin at 12:30 a.m. EDT

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

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CONTACT: Fran Slimmer, ILS, McLean, Va.;+1-571-633-7462, mobile:
+1-646-229-4801; fran.slimmer@lmco.com