JCSAT-2A, known as JCSAT-8 before launch, is a geostationary communications satellite operated by SKY Perfect JSAT Group (JSAT) which was designed and manufactured by Boeing Satellite Systems on the BSS-601 platform. It has Ku-band and C-band payload and was used to replace JCSAT-2 at the 154° East longitude. It covers Japan, East Asia, Australia and Hawaii.[2][3][4]

NamesJCSAT-2A (March 2002 onward)
JCSAT-8 (April 2000 to March 2002)
Mission typeCommunications
OperatorSKY Perfect JSAT Group
COSPAR ID2002-015A [1]
SATCAT no.27399
WebsiteJSAT official page
Mission duration11 years (planned)
Spacecraft properties
ManufacturerBoeing Satellite Systems
Launch mass2,460 kg (5,420 lb)
Dimensions21 m × 7.6 m × 4.6 m (69 ft × 25 ft × 15 ft)
(with solar panels and antennas deployed)
Power3.7 kW
Start of mission
Launch date29 March 2002. 01:29 UTC[1]
RocketAriane 44L H10-3
Launch siteCentre Spatial Guyanais, ELA-2
Orbital parameters
Reference systemGeocentric orbit
RegimeGeostationary orbit
Longitude154° East
BandKu-band: 16 × 57 Mhz
C-band: 11 × 36 MHz + 5 × 54 MHz
Bandwidth1,578 MHz
Coverage areaJapan, East Asia, Australia, Hawaii
TWTA powerKu-band: 120 watts
C-band: 34 watts

Satellite descriptionEdit

The spacecraft was designed and manufactured by Boeing Satellite Systems on the BSS-601 satellite bus. It had a launch mass of 2,460 kg (5,420 lb) a power production of 3.7 kW and an 11-year design life.[2] Stowed for launch it measured 3.6 m × 2.7 m × 4.3 m (11.8 ft × 8.9 ft × 14.1 ft), with its solar panels and antennas deployed it measured 21 m × 4.3 m × 7.6 m (69 ft × 14 ft × 25 ft).[4][5]

Its payload is composed of sixteen 57 MHz Ku-band plus eleven 36 MHz and five 54 MHz C-band transponders, for a total bandwidth of 1,578 MHz.[6] Its high-power amplifiers had an output power of 120 watts on Ku-band and 34 watts on C-band.[4][5]

The Ku-band footprint covers only Japan, while the C-band beams cover Japan, East Asia, Australia and Hawaii.[4]


In April 2000, JSAT ordered JCSAT-8 from Boeing (which had acquired the HS-601 business from Hughes), to replace JCSAT-2 at the 154° East slot. It would provide coverage to Japan, East Asia, Australia and Hawaii.[2]

An Ariane 44L successfully launched JCSAT-8 on 29 March 2002 at 01:29 UTC from Centre Spatial Guyanais. Once successfully deployed, it was renamed JCSAT-2A.[2]


  1. ^ a b "Display: JCSAT 8 2002-015A". NASA. 10 February 2021. Retrieved 18 March 2021.   This article incorporates text from this source, which is in the public domain.
  2. ^ a b c d "JCSat 8 (JCSat 2A)". Gunter's Space Page. 11 December 2017. Retrieved 18 March 2021.
  3. ^ "JCSat 2A (JCSat 8)". Satbeams. Retrieved 26 July 2016.
  4. ^ a b c d "JCSAT-2A". SKY Perfect JSAT. Retrieved 9 August 2016.
  5. ^ a b "Launch Kit V149" (PDF) (in French). Arianespace. 18 March 2002. Archived from the original (PDF) on 11 April 2004. Retrieved 8 September 2016.
  6. ^ "Who we are?". SKY Perfect JSAT. 3 August 2012. Retrieved 2 August 2016.