AsiaSat 4 [Boeing BSS]
Asia Satellite Telecommunications Company Ltd. (AsiaSat) ordered its AsiaSat 4 satellite from Boeing Satellite Systems (BSS), Inc., in September 2000. The satellite is a Boeing BSS-601HP or "high power" version of the body-stabilized spacecraft. AsiaSat 4 is designed to provide broadcast, telecommunications and broadband multimedia services to the Asia Pacific region, and direct-to-home broadcast servic-es to Hong Kong, from its orbital position of 122° East longitude.
AsiaSat 4 launched successfully 11 April 2003 on an Atlas-3B-SEC rocket from Cape Canaveral, Fla. The satellite will generate up to 9,600 Watts using two sun-tracking four-panel solar wings covered with triple-junction gallium arsenide solar cells. AsiaSat 4 will operate in C-band and Ku-band. The satellite carries 28 active transponders with six spares in C-band, powered by 55 watt traveling-wave tube amplifiers (TWTAs), and 20 active transponders with four spares in Ku-band, powered by 140 watt TWTAs.
The C-band payload is designed to offer pan-Asian coverage, similar to AsiaSat 3S, also a 601HP model. The Ku-band payload will offer high power, and spot beams for selected areas in either the Fixed Satellite Service frequency band or in the Broadcast Satellite Service frequency band.
AsiaSat 4 will be replaced in 2016 by the new AsiaSat 9 satellite. AsiaSat-4 was leased in March 2018 to SUPARCO as Paksat-MM 1 (PakSat Multi-Mission Satelite 1) to be operated from 38.2° East.
|Nation:||Hong Kong → China|
|Type / Application:||Communication|
|Operator:||Asia Satellite Telecommunications Company|
|Contractors:||Hughes → Boeing|
|Equipment:||28 C-band, 20 Ku-band transponders|
|Propulsion:||R-4D-11-300, 4 × XIPS-13 ion engines|
|Power:||2 deployable solar arrays, batteries|
|AsiaSat 4 → Paksat-MM 1||2003-014A||12.04.2003||CC SLC-36B||Atlas-3B-SEC|