Kosmos-2536 beside Kosmos-2535

A satellite of Central Sci. Res. Inst. for Chemistry and Mechanics came up beside a satellite of Topographics Service of the Russian Armed Froces, 0 km away at the nearest its sources state.

Reported: 1 public report other than Orbinauts names these two.

From the public record

From
Jul 10, 2019
to Apr 12, 2021
Closest stated
0 km
Aug 20, 2020
Orbit
LEO
low Earth orbit

The one that moved

Kosmos-2536

Central Sci. Res. Inst. for Chemistry and Mechanics, RU

44424 · 2019-039D · launched Jul 10, 2019

The one it came up to

Kosmos-2535

Topographics Service of the Russian Armed Froces, RU

44421 · 2019-039A · launched Jul 10, 2019

What the sources state

Every day and distance here is the sources’ own, to the precision they state.

When
Jul 10, 2019 to Apr 12, 2021
Same planeJul 10, 2019
launched together on 10 July 2019
BesideJuly 2019
rendezvous Jul-Oct 2019 (a servicing experiment), Dec 2019-Jan 2020; docked with 2535? 20 Aug 2020; undocked? 12 Oct 2020; rendezvous 11 Mar 2021
Closest statedAug 20, 2020
docked with 2535? (2020 Aug 20)
LeftApr 12, 2021
departed 12 Apr 2021; 2536 perigee lowered 14 Sep 2021

The detector was not yet running: it reads low Earth orbit since April 2026 and the geostationary belt since October 2026.

Reported elsewhere

Who else said these two were together, earliest first.