YAOGAN-4
Launch
Launched on Dec 1, 2008 from Launch Area 94 (SLS-2 / 603), China aboard a Long March 2D.
Long March 2D | Yaogan Weixing 4 →Live · TLE epoch 2026-09-08 19:36 UTC
Orbit class
SSO — Sun-Synchronous (LEO at 96–102° inclination)
Operator
Chinese Government
Country
China
Manufacturer
—
Launched
Dec 1, 2008
Mass
—
Apogee
633 km
Perigee
613 km
Inclination
97.93°
Period
1.62 h
Altitude history
Apogee and perigee for YAOGAN-4 across 103 days of archived orbital elements (104 element sets, one per day).
Trend
Stable
Change
-0.6 km
Rate
-0.01 km/day
Now
613 × 633 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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