Satellite · NORAD 57728 · COSPAR 2023-130B
YAOGAN-39 01B
- Operator China military / Yaogan programme
- Constellation Yaogan
- Country China
Altitude now
518.2km
SGP4 propagation
Velocity
7.60km/s
Inclination
35.00°
Period
94.9 min
94.9 min
Perigee
509km
Apogee
521km
orbit freshOrbit updated 9 h ago · element epoch 11 Sept 2026 13:24 UTC (9.5 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
- 2.502° N
- Longitude
- 0.908° E
- Altitude
- 518.2 km
- Velocity
- 7.604 km/s
- past 45 min
- next 90 min
- first fix from server render · element epoch 11 Sept 2026 13:24 UTC
Mission
Mission & classification
Ownership
Operator & country
- SATCAT owner code
- PRC · People's Republic of China
- Country
- China CN
Launch
Launch
- Launch date
- 31 Aug 2023
- COSPAR launch id
- 2023-130
- Launch site
- Xichang Satellite Launch Center
Objects from the same launch · 4
- CZ-2D DEB57730DebrisDecayed
- YAOGAN-39 01A57727PayloadActive
- YAOGAN-39 01C57731PayloadActive
- CZ-2D R/B57729Rocket bodyDecayed
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 7 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
- 57728
- COSPAR / international designator
- 2023-130B
- SatelliteIndex id
- sat_01M28X2SXR9AWCDRCXEZCJ2KS7
- Canonical slug
- yaogan-39-01b-57728
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.