SHIYAN-21 (SY-21)
Launch
Launched on Dec 16, 2022 from Mobile Launcher Pad, China aboard a Long March 11.
Long March 11 | Shiyan 21 →Live · TLE epoch 2026-09-08 12:26 UTC
Orbit class
LEO — Low Earth Orbit (circular, < 2,000 km)
Operator
Chinese Government
Country
China
Manufacturer
—
Launched
Dec 16, 2022
Mass
—
Apogee
511 km
Perigee
475 km
Inclination
35.99°
Period
1.57 h
Altitude history
Apogee and perigee for SHIYAN-21 (SY-21) across 14 days of archived orbital elements (15 element sets, one per day).
Trend
Stable
Change
-0.5 km
Rate
-0.03 km/day
Now
475 × 511 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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