Flight
- Date and time (UTC)
- October 14, 1999, 03:15
- Launch designation
- 1999-057
- Mission
- ZY-1/CBERS 1
- Flight name
- ZY-1/SACI-1
- Vehicle flight ID
- Y1
- Year
- Launches in 1999
Orbit and payload
- Initial perigee
- 727 km
- Initial apogee
- 746 km
- Inclination
- 98.6°
- Payload mass to orbit
- 1.6 t
- Payloads
- 2
- GCAT launch code
- OS
Payloads
| Payload | Designation | Owner | Mission type | Mass | Fate |
|---|---|---|---|---|---|
| Zi Yuan 1-01 | 1999-057ANORAD 25940 | Chinese Academy of Space Technology, Beijing (CASC 5th Acad) | Optical imaging | 1,540 kg | In orbit |
| SACI-1 | 1999-057BNORAD 25941 | National Institute of Space Research | Space science | 60 kg | In orbit |
Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.