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 2026-10-23 20:49 UTC
Orbit class
LEO — Low Earth Orbit (circular, < 2,000 km)
Operator
Chinese Government
Country
China
Manufacturer
—
Launched
Dec 16, 2022
Mass
—
Apogee
509 km
Perigee
474 km
Inclination
35.99°
Period
1.57 h
Altitude history
Apogee and perigee for SHIYAN-21 (SY-21) across 59 days of archived orbital elements (60 element sets, one per day).
Trend
Decaying
Change
-2.2 km
Rate
-0.04 km/day
Now
474 × 509 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.
Related satellites
Sources & further reading
Embed this satellite on your site
Free for editorial use. Attribution back to LowEarth is required.
<iframe src="https://lowearth.app/embed/54752" width="640" height="400" frameborder="0" allow="fullscreen"></iframe>