Flight
- Date and time (UTC)
- March 5, 1978, 17:54
- Launch designation
- 1978-026
- Mission
- Landsat C
- Flight name
- Landsat 3
- Vehicle flight ID
- 621/D139
- Year
- Launches in 1978
Orbit and payload
- Initial apogee
- 1,001 km
- Payload mass to orbit
- 0.927 t
- Payloads
- 3
- GCAT launch code
- OS
Payloads
| Payload | Designation | Owner | Mission type | Mass | Fate |
|---|---|---|---|---|---|
| Landsat 3 | 1978-026ANORAD 10702 | NASA Goddard Space Flight Center | Optical imaging | 900 kg | Renamed · January 1983 |
| AMSAT-OSCAR-8 | 1978-026BNORAD 10703 | AMSAT North America (Radio Amateur Satellite Corp) | Communications | 27 kg | In orbit |
| PIX | 1978-026C | NASA Langley Research Center | — | — | — |
Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.