BEIDOU-3S M1S (C57)
NORAD 40749· COSPAR 2015-037B· Navigation· MEO
Launch
Launched on Jul 25, 2015 from Launch Complex 2 (LC-2), China aboard a Long March 3B/YZ-1.
Long March 3B / YZ-1 | BDS M1-S & BDS M2-S →Live · TLE epoch 2026-10-23 07:25 UTC
Orbit class
MEO — Medium Earth (2,000–30,000 km, e.g. GPS / Galileo)
Operator
CNSA
Country
China
Manufacturer
CAST
Launched
Jul 25, 2015
Mass
—
Apogee
21,539 km
Perigee
21,527 km
Inclination
54.75°
Period
12.89 h
Part of the BeiDou constellation · this satellite is one of 56
Chinese navigation constellation. Mix of MEO, GEO, and IGSO.
Altitude history
Apogee and perigee for BEIDOU-3S M1S (C57) across 148 days of archived orbital elements (150 element sets, one per day).
Trend
Stable
Change
+0.0 km
Rate
+0.00 km/day
Now
21527 × 21539 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.
Launched with
One other catalogued object still in orbit from launch 2015-037 (Long March 3B / YZ-1 | BDS M1-S & BDS M2-S).
- BEIDOU-3S M2S (C58) · 40748
Sources & further reading
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