Intelsat 11 – Orbital Intelsat 11 User Manual

Page 2

Orbital Sciences Corporation

45101 Warp Drive

•

Dulles, Virginia 20166

•

www.orbital.com

FS002_05_2998

Coverage Contour Maps

C-band Coverage Area

Intelsat 11

Mission Partners

Intelsat

Intelsat is a premier global provider of video and data services via
satellite

Orbital Sciences Corporation

Prime contractor for Galaxy 12, 14 and 15; Intelsat 11, 15, 16,
18, 23 and 28; Horizons-2 for an Intelsat/SKY Perfect JSAT joint
venture

Arianespace

Launch provider

Specifications

Spacecraft

Launch Mass:

2,500 kg (5,512 lb.)

Solar Arrays:

Four panels per array, UTJ Gallium
Arsenide cells

Stabilization:

3-axis stabilized; zero momentum system

Propulsion:

Liquid bi-propellant transfer orbit system;
monopropellant (hydrazine) on-orbit system

Batteries:

Two >3850 W-Hr capacity Li-Ion batteries

Mission Life:

15 years

Orbit:

West Longitude

Hybrid Payload

C-band
Repeater:

12 active transponders with 16-for-12
redundant TWTAs

Antenna:

2.3 m dual grid deployable reflector with
corrugated feed horn assembly

Ku-band
Repeater:

18 active transponders with two groups of
12-for-9 TWTAs

Antenna:

2.3 m dual grid deployable transmit reflector;
0.9 m dual grid deck-mounted receive

Launch

Launch Vehicle:

Ariane 5

Site:

Kourou, French Guiana

Date:

October 5, 2007

The GEOStar

™

Advantage

Orbital’s highly successful Geosynchronous Earth Orbit (GEO)
communications satellites are based on the company’s GEOStar
spacecraft platform, which is able to accommodate all types of
commercial communications payloads and is compatible with all major
commercial launchers. The company’s GEOStar product line includes
the GEOStar-2 design, which is optimized for smaller satellite missions
that can support up to 5.0 kilowatts of payload power. Orbital has also
developed the higher-power GEOStar-3 spacecraft design, delivering the
next increment of payload power for applications between 5.0 and 8.0
kilowatts, allowing Orbital to offer its innovative and reliable satellite design
to the medium-class of communications satellites.

Ku-band Coverage Area