Luch-5Kh No. 3 beside EUTELSAT 3B

A satellite of Federal'naya sluzhba bezopasnosti Rossiyskoy Federatsii came up beside a satellite of Eutelsat SA, 16 km away at the nearest its sources state.

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

From the public record

From
Oct 4, 2023
to Dec 5, 2023
Closest stated
16 km
Orbit
GEO
geostationary orbit, over 3.2° E

The one that moved

Luch-5Kh No. 3

Federal'naya sluzhba bezopasnosti Rossiyskoy Federatsii, RU

55841 · 2023-031 · launched Mar 12, 2023

The one it came up to

EUTELSAT 3B

Eutelsat SA, F

39773 · 2014-030A · launched May 26, 2014

What the sources state

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

When
Oct 4, 2023 to Dec 5, 2023
BesideOct 4, 2023 to Oct 5, 2023
As of October 5, 2023 at 15:00 ET, Luch (Olymp) 2 appears to be parking near ~3.2 East, within ~60 km of another GEO spacecraft
Closest stated
closest approach about 16 km
LeftDec 4, 2023 to Dec 5, 2023
7 December update: has left its previous slot and settled near a different satellite

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.