| OSCAR 8 | |
| Mission Type: | Amateur Radio Satellite |
| Operator: | AMSAT |
| Cospar Id: | 1978-026B[1] |
| Satcat: | 10703 |
| Launch Mass: | 27.2kg (60lb) |
| Dimensions: | 38x |
| Power: | 15 W |
| Launch Date: | 5 March 1978, 17:54 UTC |
| Launch Rocket: | Delta-2910 139 |
| Launch Site: | Vandenberg SLC-2W |
| Orbit Epoch: | 6 February 2020[2] |
| Orbit Reference: | Geocentric |
| Orbit Regime: | Low Earth |
| Orbit Periapsis: | 899.1km (558.7miles) |
| Orbit Apoapsis: | 907.8km (564.1miles) |
| Orbit Semimajor: | 7274km (4,520miles) |
| Orbit Inclination: | 99.0291° |
| Orbit Period: | 102.9 minutes |
| Apsis: | gee |
| Programme: | OSCAR |
| Previous Mission: | OSCAR 7 |
| Next Mission: | OSCAR 9 |
OSCAR 8 (also called AO-08, Phase 2D or Amsat P2D) is an American amateur radio satellite. It was developed and built by radio amateurs of the AMSAT and launched on March 5, 1978 as a secondary payload together with the Earth observation satellite Landsat 3 from Vandenberg Air Force Base, California, United States.
The satellite had two linear transponders, from the 2-meter band (uplink) to the 10-meter band and the 70-centimeter band (downlink).