Issue 84

Russia: Resurs-P3 Intentionally De-Orbited & Kosmos-2562 Not Far Behind

22 Oct 2023: It appears Russia intentionally de-orbited its Resurs-P3 commercial imagery satellite. On 10 Oct 2023, Resurs-P decreased its altitude from 329.6 km to 325.8 km and then proceeded to re-enter the Earth's atmosphere one week later on 17 Oct 2023 (time of last TLE data). Resurs-P3 had been paired with the…

22 Oct 2023: It appears Russia intentionally de-orbited its Resurs-P3 commercial imagery satellite. On 10 Oct 2023, Resurs-P decreased its altitude from 329.6 km to 325.8 km and then proceeded to re-enter the Earth’s atmosphere one week later on 17 Oct 2023 (time of last TLE data). Resurs-P3 had been paired with the experimental Russian satellite, Kosmos-2562 from Oct 2022 – Jul 2023. For its part, Kosmos-2562 remains in orbit but appears to be rapidly decaying.

-In October 2022, Resurs-P3 lowered its altitude to match orbits with Kosmos-2562. The two satellites appear to have conducted multiple rendezvous and proximity operations and separations between Feb 2023 & Jul 2023.

Resurs-P3 was believed to be non-operational due to problems with the systems needed to downlink imagery, but other on-board systems may still be functional.

– Kosmos-2561 & 2562 were launched on the same vehicle on 22 Oct 2022. Based on launch contracts, there is speculation that both satellites might be part of the Numizmat program.

– Numizmat is a 2014 project started by Russia’s Central Scientific Research Institute of Chemistry and Mechanics (CNIIHM). CNIIHM specializes in small satellites, and their core business seems to be ASAT/inspection missions.

– Known Numizmat payloads are an ultrawide band radar and a TV camera, which could be used for rendezvous and proximity operations.

– With Kosmos-2562 clearly involved in rendezvous and proximity operations with Resurs-P3, it is the fifth type of Russian satellite to engage in that sort of activity in the past decade or so.

– After Kosmos-2562 left the immediate vicinity of Resurs-P3 in July 2023, it has not made any orbit corrections and its orbit is now quickly decaying. It may have run out of propellant after the lengthy rendezvous and proximity operations with Resurs P3.

– Notably, Kosmos-2561 has become quite active in the past two weeks, after nearly six months of orbital decay. It has raised its orbit five times since 14 September 2023, increasing its average altitude by more than 36 km.

Resurs-P3 and Kosmos-2562 may have engaged in multiple rendezvous, proximity operations, and separations. Due to the proximity of the satellites and the inaccuracies inherent in TLE measurements, it is difficult to characterize the engagements. From limited publicly available information, it appears only Kosmos-2562 is performing the co-orbital maneuvers.

Resurs-P3 SMA 6-17 Oct 2023

Kosmos-2562 SMA Jan-Jul 2023

Relative Distance: Kosmos-2562 & Resurs-P3 Jan-Jul 2023

Kosmos-2561 SMA Jul-Nov 2023