On October 27, 2023 at 09:04 MSK (06:04 UTC) the crews of the Air and Space Forces conducted a successful launch of a Soyuz-2.1b launcher from the launch pad 43/4 of the Plesetsk launch site. The launcher delivered into orbit two satellites - Cosmos-2570 and Cosmos-2571.

As it was the case with previous launches, the primary satellite of the mission, Cosmos-2570, released what appears to be a smaller satellite, presumably be named Cosmos-2571. The separation took place around 02:16 UTC on October 29. The satellites received international designations 2023-165A and 2023-165C respectively. Their NORAD numbers are 58148 and 58172.

The satellites were deployed in a nearly circular orbit with altitude of about 900 km. Cosmos-2370 is believed to be a Lotos-S1 electronic reconnaissance satellite of the Liana system. Previous satellite of this class, Cosmos-2565, was launched in December 2022.

UPDATE: Cosmos-2571 separated from the main satellite around 30 October 2023. Later, around 23 November 2023, it released a new object, 2023-165D/58428. Similar behavior was seen in the Cosmos-2565/Cosmos-2566 launch in 2022.