RS-25 Doppler Measurements

There is still some debate as to which orbital object, #28890 or #28893, is transmitting the RS-25 beacon information following the launch of SSETI Express
along with RS-25 a couple of weeks ago.

RS-25, on 435.325 MHz, is believed to be part of the Mozhayets 5 satellite which failed to seperate from the launcher.

Gerhard DB3DH has published his measurement result for the CW beacon that broadcasts the "RS-25" call sign.

His interesting measurement approach using the CAT interface and a sound card could be used for other satellites as well. It is described at:
http://www.hallosat.de/DopplermessungEngl.htm

73 Trevor M5AKA