| JCSAT-2A | |
| Names List: | JCSAT-2A (March 2002 onward) JCSAT-8 (April 2000 to March 2002) |
| Mission Type: | Communications |
| Operator: | SKY Perfect JSAT Group |
| Cospar Id: | 2002-015A |
| Satcat: | 27399 |
| Website: | JSAT official page |
| Mission Duration: | 11 years (planned) |
| Spacecraft: | JCSAT-2A |
| Spacecraft Bus: | BSS-601 |
| Manufacturer: | Boeing Satellite Systems |
| Dimensions: | (with solar panels and antennas deployed) |
| Power: | 3.7 kW |
| Launch Date: | 29 March 2002. 01:29 UTC |
| Launch Rocket: | Ariane 44L H10-3 |
| Launch Site: | Centre Spatial Guyanais, ELA-2 |
| Launch Contractor: | Arianespace |
| Orbit Reference: | Geocentric orbit |
| Orbit Regime: | Geostationary orbit |
| Orbit Longitude: | 154° East |
| Apsis: | gee |
| Trans Band: | Ku-band 16 × 57 MHz |
| Trans Bandwidth: | 1,578 MHz |
| Trans Coverage: | Japan, East Asia, Australia, Hawaii |
| Trans Twta: | Ku-band |
| Insignia Size: | 200px |
| Programme: | JSAT |
| Previous Mission: | JCSAT-110 |
| Next Mission: | JCSAT-5A |
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.
The spacecraft was designed and manufactured by Boeing Satellite Systems on the BSS-601 satellite bus. It had a launch mass of a power production of 3.7 kW and an 11-year design life. Stowed for launch it measured, with its solar panels and antennas deployed it measured .
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. Its high-power amplifiers had an output power of 120 watts on Ku-band and 34 watts on C-band.
The Ku-band footprint covers only Japan, while the C-band beams cover Japan, East Asia, Australia and Hawaii.
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.
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.