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MBSat 1 → ABS 2i → ABS 4 (Mobisat)

MBSat 1 [SSL]

MBSat 1 (Mobile Broadcasting Satellite) was a mobile broadcasting satellite to provide 2.400 kW RF power over 25 MHz of S-band spectrum to run more than 50 channels of audio and video from 16 S-band transmitters operating at 120 W. In addition, the satellite provided a 25 MHz Ku-band service link to transmit the broadcast signal to terrestrial repeaters. The satellite generated more than 7.400 kW of DC power continuously throughout its planned 12 year life. The satellite deployed a 12 meter antenna reflector to transmit the MBC programming. The system was able to broadcast more than 50 programs simultaneously.

Due to financial issues the broadcasting operations were stopped on 31 March 2009.

Asia Broadcasting Satellite (ABS) of China purchased the MBSat satellite in 2013, moved it to at 75 E and renamed it ABS 2i. Later it was renamed ABS 4 (Mobisat).

Nation: Japan → China
Type / Application: Communication
Operator: Mobile Broadcasting Corp. (MBC) → Asia Broadcast Satellite (ABS)
Contractors: Space Systems/Loral (SS/L)
Equipment: 16 S-band transponders, 1 Ku-band transponder, TRW Astromesh 12 m reflector
Configuration: SSL-1300
Propulsion: R-4D, 4 × SPT-100 plasma thrusters
Power: 2 deployable solar arrays, batteries
Lifetime: 12 years
Mass: 4143 kg
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
MBSat 1 → ABS 2i → ABS 4 (Mobisat) 2004-007A 13.03.2004 CC SLC-36B Atlas-3A


  • Space Systems/Loral: MBSAT
Further LMI / ABS missions: