| Name of Satellite, Alternate Names | Galaxy-13 (Horizons 1, Galaxy 13L) |
| Country of Operator/Owner | USA/Japan |
| Operator/Owner | PanAmSat (Intelsat, Ltd.)/Sky Perfect JSAT Corp. |
| Users | Commercial |
| Purpose | Communications |
| Class of Orbit | GEO |
| Type of Orbit | |
| Longitude of GEO (degrees) | -126.97 |
| Perigee (km) | 35781 |
| Apogee (km) | 35790 |
| Eccentricity | 0.000106747636725931 |
| Inclination (degrees) | 0.01 |
| Period (minutes) | 1436.07 |
| Launch Mass (kg.) | 4060 |
| Dry Mass (kg.) | 2630 |
| Power (watts) | 8600 |
| Date of Launch | 01-10-2003 |
| Expected Lifetime | 15 yrs. |
| Contractor | Boeing Satellite Systems |
| Country of Contractor | USA |
| Launch Site | Sea Launch (Odyssey) |
| Launch Vehicle | Zenit 3 |
| COSPAR Number | 2003-044A |
| NORAD Number | 27954 |
| Comments | Horizons 1 is Ku-band payload; C-band is on Galaxy 13. |