COMSPOC_OPS
@COMSPOC_OPS
Followers
801
Following
98
Media
42
Statuses
65
COMSPOC Operations Team | Technical experts in orbital analysis, maneuver detection, and near real-time space tracking | Advancing Space Domain Awareness.
Exton, PA
Joined September 2024
It’s also possible SJ‑23 simply hit an operational longitude limit and turned around as part of routine station‑keeping — not necessarily a direct approach to TJS-14.
0
0
5
Close talkers in orbit We observed a short RPO between Shijian‑23 (SJ‑23) and TJS‑14 on 15–17 October 2025. The public TLEs suggested a close approach of about 75 km. Our software's extended‑Kalman‑filter/smoother analysis, in collaboration with @IntegrityISR, showed the close
1
3
11
USA 325 Took the Long Way Around Between 29 September and 6 October, USA 325 (SSC.51281) executed a sequence of maneuvers while drifting eastward through the GEO belt. Prior to this activity, it was on track to pass near COSMOS 2513 (SSC.41121), a Russian Garpun military relay
0
0
11
ZHONGXING-10 Relocated from its ITU Slot to the Far West of China After a 2-month drift, spanning ~34° of GEO, ZHONGXING-10 (SSC.37677) has relocated from its ITU-assigned 110.5°E slot to 76.5°E. The Chinese TV-broadcasting communication satellite, carrying C- and Ku-band
0
0
6
Meeting on Earth AND in Space — USA 271 Drops by SKYNET-5A USA 271 (SSC.41745), a highly maneuverable Geosynchronous Space Situational Awareness U.S. satellite (GSSAP), halted its westward drift near a U.K. military communications satellite, SKYNET-5A (SSC.30794), at 95.3°E from
4
16
61
Hey LUCH, How's the New Neighborhood? In our July update, we reported on the Russian satellite, LUCH-5X's (SSC.55841) continuous activity near INTELSAT-39 (SSC.44476) at 62°E. Since then, we've also observed that its predecessor LUCH, commonly known as Olymp (SSC.40258), has
0
4
9
SJ-25 and SJ-21 Update Last week, the star on our chessboard that docked back in June carried out a major maneuver, reducing its inclination from 10.6° to 4.4°. The event occurred on 8-12 August 2025, expending a total of 353.7 m/s of delta-V. So far, there is no evidence of
0
6
18
2 Chinese Military Satellites Started Drifting in GEO On 15 August 2025, TJS-16 located at 152.5 deg E performed maneuvers of 1.2 m/s and 1.4 m/s delta-v, resulting in a drift rate increase to 0.92 degree per day on 15 August. Meanwhile, TJS-17, located at 152.8 deg E, executed
1
0
3
COSMOS 2589 (SSC.64467) and Object C (SSC.64527) have taken the spotlight this past month with their unusually high eccentricity orbits, crossing the GEO belt twice a day. The orbital configuration offers unique opportunities for monitoring and characterizing space objects in
1
8
35
This week's interesting close pass: LUCH-5X (SSC.55841), a Russian military GEO satellite tied to the Ministry of Defense and FSB, has been closely shadowing INTELSAT-39 (SSC.44476) since March 2025—remaining within 50 km. The pair reached their closest approach of this month on
0
11
23
SJ-21 and SJ-25: Rendezvous and Proximity Ops Timeline (June–July 2025) After a brief encounter in mid-June, a second campaign began later that month. On 2 July, both satellites became optically indistinguishable, suggesting docking or sustained close proximity. As of 18 July,
0
2
9
UPDATE: SHIJIAN‑21 & SHIJIAN‑25 Proximity Operations in GEO SHIJIAN‑21 (SJ-21) and SHIJIAN‑25 (SJ-25) were observed conducting Rendezvous and Proximity Operations (RPO) in geosynchronous orbit during Jun-Jul 2025 with multiple close approaches. The two objects appeared visually
With many of you following along on social media, the @COMSPOC_OPS team recently monitored the interaction between China’s Shijian-21 and Shijian-25 satellites. Using automated data fusion of observations from multiple sources, our COTS platform, SSASuite, enabled the team to
0
4
28