| Name of Satellite, Alternate Names | Superbird-B2 (Superbird 4) |
| Country of Operator/Owner | Japan |
| Operator/Owner | Sky Perfect JSAT Corporation |
| Users | Commercial |
| Purpose | Communications |
| Class of Orbit | GEO |
| Type of Orbit | |
| Longitude of GEO (degrees) | 162.03 |
| Perigee (km) | 35779 |
| Apogee (km) | 35793 |
| Eccentricity | 0.00016604990985862 |
| Inclination (degrees) | 0.01 |
| Period (minutes) | 1436.09 |
| Launch Mass (kg.) | 4051 |
| Dry Mass (kg.) | 2160 |
| Power (watts) | 5,400 (EOL) |
| Date of Launch | 18-02-2000 |
| Expected Lifetime | 10 yrs. |
| Contractor | Boeing Satellite Systems |
| Country of Contractor | USA |
| Launch Site | Guiana Space Center |
| Launch Vehicle | Ariane 44L |
| COSPAR Number | 2000-012A |
| NORAD Number | 26095 |
| Comments | 23 Ku-band, 6 Ka-band; Japan, Okinawa; business communications. |