COMSPOC_OPS
@COMSPOC_OPS
COMSPOC Operations Team | Technical experts in orbital analysis, maneuver detection, and near real-time space tracking | Advancing Space Domain Awareness.
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…
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,…
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…
On 26 Jun, Object D was officially cataloged by the 18 Space Defense Squadron after its release from COSMOS 2589, a Russian military satellite launched on 19 Jun. This newly released object maintains a similar highly-elliptical orbit. The video demonstrates the orbits of both…
As of 26 June, SHIJIAN-21 remained less than ~80 kilometers from SHIJIAN-25. Meanwhile, USA 270 continued to occupy the mean longitude position of the pair. According to our Space Situational Awareness (SSA) software suite, both satellites performed several small maneuvers to…
COSMOS 2589 (SSN.64467), a Russian military satellite, was launched on 19 June 2025 aboard an Angara-5 rocket from Plesetsk. Public sources classify it as part of the Ekspress-2000 series, a large 3-ton satellite platform. As of 24 June, COSMOS 2589 occupies an unusual…
Our latest analysis using SSA suite, our commercially available SSA platform, indicates that the Chinese satellite SHIJIAN-25 (SJ-25) continues its steady drift towards SHIJIAN-21 (SJ-21) at approximately 1.5 degrees per day. According to today's state update, their closest…
Recent observations from @OurSkyAI and @ObservableSpace, supported by COMSPOC’s optical network, reveal several significant activities in GEO between 6–8 June 2025. SHIJIAN-25 (SJ-25) performed four maneuvers between 6 June 01:50 UTC and 7 June 16:51 UTC, using a total delta-v…
We're excited to welcome our 2025 summer interns to COMSPOC! These students bring energy, talent, and a shared commitment to advancing space situational awareness: 🔹 Ava Anderson, @NotreDame 🔹 Kaitlyn Hess, Conestoga High School 🔹 Kellen Martin, @IowaStateU 🔹 Paulo…
Thanks to data from @OurSkyAI and @ObservableSpace, combined with updates from COMSPOC’s own optical network, our Operations Team was able to detect a maneuver from SHIJIAN-21 (SSN.49330). At 15:49:12 UTC on 2 June 2025, SHIJIAN-21 performed a maneuver of ~10.8 m/s delta V,…
