Satellite · NORAD 47857 · COSPAR 2021-020D
YAOGAN-31 04C
- Operator China military / Yaogan programme
- Constellation Yaogan
- Country China
Altitude now
981.0km
SGP4 propagation
Velocity
7.42km/s
Inclination
63.41°
Period
107.0 min
107.0 min
Perigee
953km
Apogee
1,225km
orbit freshOrbit updated 9 h ago · element epoch 11 Sept 2026 14:22 UTC (7.0 h old)· Metadata updated 9 h ago
Live position
Ground track & current position
Propagated client-side every 5 s from the latest element set (SGP4). Accuracy degrades with element age.
Loading ground track…
- Latitude
- 27.148° S
- Longitude
- 69.036° E
- Altitude
- 981.0 km
- Velocity
- 7.418 km/s
- past 45 min
- next 90 min
- first fix from server render · element epoch 11 Sept 2026 14:22 UTC
Mission
Mission & classification
Ownership
Operator & country
- SATCAT owner code
- PRC · People's Republic of China
- Country
- China CN
Launch
Launch
- Launch date
- 13 Mar 2021
- COSPAR launch id
- 2021-020
- Launch site
- Jiuquan Satellite Launch Center
Objects from the same launch · 5
- YAOGAN-31 04A47854PayloadActive
- YAOGAN-31 04B47856PayloadActive
- CZ-4C R/B47858Rocket bodyInactive
- OBJECT B47855UnknownUnknown
- OBJECT F47859UnknownUnknown
Change log
History
| Field | Change | Source | Date |
|---|---|---|---|
| Owner Code | ∅ → PRC | Celestrak Satcat | 11 Sept 2026 18:53 UTC |
| Orbit Class | ∅ → LEO | Celestrak | 11 Sept 2026 18:53 UTC |
Regulatory
UN registration
Transparency
Sources & provenance
CelesTrakcommunity
Orbital data courtesy of CelesTrak (Dr. T.S. Kelso).
last sync 6 h ago
CelesTrak SATCATcommunity
Satellite catalog data courtesy of CelesTrak.
last sync 9 h ago
Field provenance
| Field | Source | Observed | Confidence |
|---|---|---|---|
| Canonical Name | CelesTrak SATCAT | 11 Sept 2026 18:53 UTC | 100% |
| Decay Date | CelesTrak SATCAT | 11 Sept 2026 18:53 UTC | 100% |
| Launch Date | CelesTrak SATCAT | 11 Sept 2026 18:53 UTC | 100% |
| Object Type | CelesTrak SATCAT | 11 Sept 2026 18:53 UTC | 100% |
| Orbital Elements | CelesTrak | 11 Sept 2026 20:57 UTC | 100% |
| Owner Code | CelesTrak SATCAT | 11 Sept 2026 18:53 UTC | 100% |
| Status | CelesTrak SATCAT | 11 Sept 2026 18:53 UTC | 100% |
Timeline
Events
No events detected for this object yet. Launches, decays and orbit changes are generated by the derived-analytics connector.
Reference
Identifiers
- NORAD catalogue number
- 47857
- COSPAR / international designator
- 2021-020D
- SatelliteIndex id
- sat_01M28X2SX3DZ28FSVTBZFJHN7P
- Canonical slug
- yaogan-31-04c-47857
Orbit class, mission type and constellation membership are derived by SatelliteIndex (Military) — see the methodology. Positions are propagated estimates, not tracking measurements; never use them for conjunction assessment.