[amsat-bb] DOSAAF-85 transponder activation

[Nico Janssen]

The failure of RS44/DOSAAF 85 (also known in Russia as "Radio 2017")
to separate from the Breeze-KM stage also prevented the deployment
of BLITS M1, an experimental passive laser reflector satellite.

With RS 44 now attached to the Breeze-KM stage, its gravity gradient
stabilization boom can not be extended, because that is at the side
where the satellite is attached. But fortunately all radio antennas are
at the end of the satellite that points away from the stage. Therefore
the radio equipment of RS 44 is fully operational and works well. The
CW beacon on 435.604 MHz still only sends its ID "RS44". Maybe later
some telemetry can be sent as well.

73,
Nico PA0DLO

On 30-04-2020 14:06, Nico Janssen via AMSAT-BB wrote:
>
> The new amateur payload DOSAAF 85 appears to work very well.
> Doppler measurements confirm that it is indeed object 44909,
> 2019-096E. The satellite identifies itself as "RS44" (i.e. Radio
> Sputnik 44) on its CW beacon on 435.6043 kHz. The passband is
> about 63 kHz wide. It may also have a downlink between 2400 and
> 2485 MHz. The frequencies of RS44/DOSAAF 85 have not been IARU
> coordinated. The satellite is in an elliptical orbit with a perigee of
> 1175 km, an apogee of 1511 km and an inclination of 82.5 degrees.
>
> The payload is apparently attached to the Breeze-KM upper stage of
> a Rokot launch vehicle that launched three Gonets satellites on
> December 26, 2019. It was originally expected to launch in 2015.
> It is based on the Yubileiniy platform.
>
> For details, see https://space.skyrocket.de/doc_sdat/dosaaf-85.htm 
> <https://t.co/CCuN4HN8KI?amp=1>and
> http://spaceflight101.com/rockot-blasts-off-from-plesetsk-with-military-satellite-payloads/ 
>
>
> 73,
> Nico PA0DLO
>
> On 30-04-2020 10:08, Blinov Igor via AMSAT-BB wrote:
>> Good day!
>> Satellite DOSAAF-85 turn on transponder (linear, inverting) on for 
>> testing purposes.
>> UPLink 145965KHz +/-30 KHz
>> DOWNLink 435640KHz +/-30 KHz
>> BEACON 435605KHz
>> TLE:
>> 1 44909U 19096E   20120.96346743 +.00000010 +00000-0 +00000-0 0 9999
>> 2 44909 082.5239 027.5343 0217449 340.2089 019.0669 12.79706663015985
>> Try it!
>> -- 
>> 73! Igor, RW3XL
>>
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>
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. 
> Opinions expressed
> are solely those of the author, and do not reflect the official views 
> of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite 
> program!
> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb