YAOGAN-21
Launch
Launched on Sep 8, 2014 from Launch Complex 9, China aboard a Long March 4B.
Long March 4B | Yaogan 21 & Tiantuo 2 →Live · TLE epoch 2026-09-11 20:44 UTC
Orbit class
SSO — Sun-Synchronous (LEO at 96–102° inclination)
Operator
Chinese Government
Country
China
Manufacturer
—
Launched
Sep 8, 2014
Mass
—
Apogee
494 km
Perigee
482 km
Inclination
97.14°
Period
1.57 h
Altitude history
Apogee and perigee for YAOGAN-21 across 106 days of archived orbital elements (107 element sets, one per day).
Trend
Decaying
Change
-3.9 km
Rate
-0.04 km/day
Now
482 × 494 km
Apogee Perigee
Derived from our own archive of CelesTrak orbital elements, sampled every 3 hours. Short windows show drag and station-keeping; they are not a reentry prediction.
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