escobar
Brigadier
Monitoring SJ-25: Potential Rendezvous and Refueling for SJ-21Seems like the target for Shijian-25 orbital servicing mission is , the satellite launched in 2021 that caused quite a commotion. This will probably be in the 2025 CMPR.
is at 149 deg east, 35,468 x 36,111 km, 10.21 deg inclination
is at 120 deg east, 35,546 x 36,088 km, 10.21 deg inclination, drifting east at about quarter of degree per day, orbit is coplanar
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Recently, our COMSPOC Operations team has been closely tracking the newly launched Chinese SJ-25 spacecraft, which entered geosynchronous orbit near 119° E. Notably, it shares a nearly identical inclined orbital plane (~10.3°) with SJ-21, currently located about 30° away in longitude. This orbital coincidence goes beyond inclination alone—the Right Ascension of the Ascending Node (RAAN) is also matched, a strong indication that SJ-21 may be SJ-25’s primary target.
The Geosynchronous belt is often likened to a high-stakes chessboard. In this case, the pieces have been set and we are waiting for the game to start. SHIJIAN-25 (SJ-25) has drawn attention due to its potential rendezvous with SHIJIAN-21 (SJ-21), the question remains: will SJ-25 commit to a long-distance drift, or simply continue station-keeping where it is?

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