Satellite · NORAD 50572 · COSPAR 2021-134A
TIANHUI 4A
- Operator People's Republic of China
- Constellation —
- Country China
Altitude now
432.3km
SGP4 propagation
Velocity
7.65km/s
Inclination
88.97°
Period
93.1 min
93.1 min
Perigee
416km
Apogee
431km
orbit freshOrbit updated 4 h ago · element epoch 11 Sept 2026 20:11 UTC (8.6 h old)· Metadata updated 4 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
- 13.739° S
- Longitude
- 67.715° E
- Altitude
- 432.3 km
- Velocity
- 7.650 km/s
- past 45 min
- next 90 min
- first fix from server render · element epoch 11 Sept 2026 20:11 UTC
Mission
Mission & classification
Ownership
Operator & country
- Operator
- —
- SATCAT owner code
- PRC · People's Republic of China
- Country
- China CN
Launch
Launch
- Launch date
- 29 Dec 2021
- COSPAR launch id
- 2021-134
- Launch site
- Jiuquan Satellite Launch Center
Objects from the same launch · 1
- TIANHUI 4B50573PayloadActive
Change log
History
| Field | Change | Source | Date |
|---|---|---|---|
| Country Code | ∅ → CN | Celestrak Satcat | 11 Sept 2026 18:53 UTC |
| 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 2 h ago
CelesTrak SATCATcommunity
Satellite catalog data courtesy of CelesTrak.
last sync 10 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 | 12 Sept 2026 03:03 UTC | 100% |
| Owner Code | CelesTrak SATCAT | 11 Sept 2026 18:53 UTC | 100% |
| Status | CelesTrak SATCAT | 11 Sept 2026 18:53 UTC | 100% |
Quality flags
- UNKNOWN_OPERATORactive payload without resolved operator11 Sept 2026
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
- 50572
- COSPAR / international designator
- 2021-134A
- SatelliteIndex id
- sat_01M28X2SX7AZFC54PF92GAHP7T
- Canonical slug
- tianhui-4a-50572
Orbit class, mission type and constellation membership are derived by SatelliteIndex (Unknown) — see the methodology. Positions are propagated estimates, not tracking measurements; never use them for conjunction assessment.