Dmitry Pashkov R4UAB reports that the COSMOS-2491 satellite carries RS-46 operating on 435.465 MHz and 435.565 MHz (+/- Doppler).
The satellite was launched on December 25, 2013 and is in a 1,515.8 km by 1,489.1 km 82.5 degree inclination orbit.
Watch COSMOS-2491/RS-46 (R4UAB)
Track COSMOS-2491 / RS-46 at http://www.n2yo.com/satellite/?s=39497
Listen for RS-46 online with the SUWS WebSDR located near London
COSMOS-2499 Callsign RS-47 ! https://amsat-uk.org/2014/11/30/cosmos-2499-callsign-rs-47/