Anatoly Zak reports on the maneuvers of Cosmos-2504 whose signals were detected by a Dutch amateur radio enthusiast Cees Bassa.
Cosmos-2504 was launched on March 31, 2015, at 16:47:56 Moscow Time from Site 133 in Plesetsk. Just hours later it was noted it was transmitting signals similar to previous maneuverable satellites — Cosmos-2491 (RS-46) and Cosmos-2499 (RS-47).
Read the article at http://russianspaceweb.com/Cosmos-2504.html
COSMOS-2499 Callsign RS-47 https://amsat-uk.org/2014/11/30/cosmos-2499-callsign-rs-47/
COSMOS-2491 is RS-46 https://amsat-uk.org/2014/12/02/cosmos-2491-rs-46/
COSMOS-2499 signals received by Dmitry Pashkov R4UAB
COSMOS-2499 (2014-028E) was launched on May 23, 2014 and is now in a 1,510.6 km by 1,158.8 km 82.4 degree orbit. Dmitry Pashkov R4UAB has received signals from the satellite on approximately 435.465 MHz and 435.565 MHz (+/- Doppler). On November 30 the satellite started identifying itself in Morse code on 435.465 MHz as RS-47.
There has been some mystery concerning the purpose of COSMOS-2499. In a post updated November 20, 2014 Anatoly Zak @RussianSpaceWeb wrote: Ground observations indicated that the mystery satellite had not exceeded 0.3 meters in size. Previously, two Rockot launches with trios of Rodnik/Strela-3M launches also carried Yubileiny (a.k.a. MiR) experimental satellites with a reported mass from 48 to 100 kilograms. As with the previous launch, observers were at a complete loss about the possible purpose of the satellite.
Cosmos-2499 has made a number or orbital changes since it was first launched. For further information see http://www.russianspaceweb.com/Cosmos-2499.html
Watch RS-47 / COSMOS 2499 / 2014-028E (R4UAB)
Track COSMOS-2499 / RS-47 at http://www.n2yo.com/?s=39765
Listen for RS-47 online with the SUWS WebSDR located near London
RS-47 Telemetry data http://www.dk3wn.info/p/?p=52752
Dmitry Pashkov R4UAB describes receiving the 435.465 MHz and 435.565 MHz signals at http://tinyurl.com/R4UAB-COSMOS-2499