Orbital MEASAT-3a User Manual
GEO
Communications
MEASAT-3a
Hybrid Ku-band and C-band Commercial Communications Satellite
FACTS AT A GLANCE
Mission Description
The MEASAT-3a satellite was developed and built for MEASAT Satellite Systems of Kuala Lumpur,
Malaysia. The satellite carries 12 Ku-band and 12 C-band active transponders along with three
antennas. MEASAT-3a serves C-band markets throughout the region with a global beam, and Ku-band
beams serve direct-to-home broadcasting markets in Malaysia and Indonesia. The satellite is located
at an orbital slot at 91.5 degrees East Longitude over Southeast Asia and generates approximately 3.6
kilowatts of payload power.
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.
Coverage:
Asia, the Middle East and Africa
Mission:
Ku-band Direct-To-Home (DTH)
television broadcasting and C-band
Fixed Satellite Services (FSS)
Customer:
MEASAT Satellite Systems
MEASAT-3a undergoes testing in Orbital's
Dulles, Virginia satellite manufacturing facility
MEASAT-3a
Specications
Spacecraft
Launch Mass: 2,417 kg (4,448 lb.)
Solar Arrays: Three panels per array, UTJ Gallium
Arsenide cells
Stabilization: 3-axis stabilized
Propulsion: Monopropellant (hydrazine) on-orbit system
Batteries: Two 4248 W-Hr
Mission Life: 15 years
Orbit: 91.5
Payload
C-band
Repeater: 12 active transponders with 15-for-12
TWTA Power: 60 W RF
Antenna: 2.3 m dual grid shaped deployable reector;
Ku-band
Repeater: 12 active transponders with 15-for-12
TWTA Power: 120 W RF
Antenna: 2.3 m dual grid shaped deployable reector
°
East Longitude
linearized 60 W TWTAs
1.2 m deck-mounted
linearized TWTAs
Mission Partners
MEASAT Satellite Systems
One of Southeast Asia’s leading satellite communications providers
Orbital Sciences Corporation
Prime contractor for MEASAT-3a
Land Launch
Launch provider
Coverage Contour Maps
MLA Contours
INS Contours
Launch
Launch Vehicle: Zenit
Site: Baikonur, Kazakhstan
Date: June 21, 2009
GWI Contours
Orbital Sciences Corporation
45101 Warp Drive
©2014 Orbital Sciences Corporation FS005_05_2998
•
Dulles, Virginia 20166
•
www.orbital.com
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