[amsat-bb] Three CubeSats deploy from ISS 1030z 11th May

[Rustem Aslan]

Ubakusat starts transmiting 4 hours later

Rustem

Alfredos (fredy) Damkalis <fredy at fredy.gr> şunları yazdı (11 May 2018 21:48):

> Following the latest ISS TLE it seems (need confirmation from the
> satellites teams) that:
> 
> IRAZU is alive and transmit FSK9k6 [1]
> 
> UBAKUSAT not heard yet [2] but the only observation until now was
> probably too close to deployment.
> 
> 1KUNS seems to be alive but it doesn't seem to transmit FSK9k6 [3][4]
> except if this is a drifted signal from UBAKUSAT that should transmit
> +25KHz from the observed frequency.
> 
> I guess soon we will need new tle, please share any news/updates.
> 
> Thank you,
> fredy
> 
> [1] https://network.satnogs.org/observations/133122/
> [2]
> https://network.satnogs.org/observations/?future=1&good=1&bad=1&unvetted=1&failed=1&norad=99998&observer=&station=
> [3] https://network.satnogs.org/observations/133268/
> [4] https://network.satnogs.org/observations/133269/
> 
>> On 05/11/2018 09:31 AM, Alfredos (fredy) Damkalis wrote:
>> Thanks for the info!
>> 
>> Adding some details and one question.
>> 
>> IRAZU telemetry is FSK9k6 at 436.500 MHz source: [1]
>> UBAKUSAT telemetry is GMSK9k6 at 437.325 MHz source: [2]
>> 1KUNS-PF telemetry is FSK9k6 at 437.300 MHz source: [3]
>> 
>> The question is about UBAKUSAT, in some sites like IARU's one [4] refers
>> that CW is at 427.225 MHz, while in other sites like amsat-uk's one [5]
>> refers it at 437.225. Any idea which is the right one?
>> 
>> 73,
>> fredy
>> 
>> [1] https://directory.eoportal.org/web/eoportal/satellite-missions/i/irazu
>> [2]
>> http://www.tamsat.org.tr/tr/ubakusat-amator-radyo-telemetri-ve-transponder-bilgileri/
>> [3]
>> http://engineering.uonbi.ac.ke/sites/default/files/cae/engineering/engineering/1KUNS-PF_Cubesat_1.0_rev3.pdf
>> [4] http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=526
>> [5]
>> https://amsat-uk.org/2018/05/10/linear-transponder-cubesat-iss-deployment/
>> 
>>> On 05/10/2018 08:26 PM, Masahiro Arai wrote:
>>> JAXA announced three CubeSats will deploy from ISS at 1030-1040z 11th
>>> May.
>>> The live broadcast will start at 1900z on YouTube.
>>> https://www.youtube.com/watch?v=4wRQ1Nljuiw
>>> 
>>> 
>>> The satellites are Irazu(Costa Rica), 1KUNS-PF(Kenya) and UBAKUSAT
>>> (Turk).
>>> IARU Amateur Satellite Frequency Coordination shows 1KUNS-PF and
>>> UBAKUSAT are operate on amateur radio band.
>>> 
>>> 1KUNS-PF
>>>  3U CubeSat
>>>  Digital downlink 9600bps 437.300 MHz
>>> 
>>> http://engineering.uonbi.ac.ke/sites/default/files/cae/engineering/engineering/1KUNS-PF_Cubesat_1.0_rev3.pdf
>>> 
>>> 
>>> UBAKUSAT
>>>  3U CubeSat
>>>  Beacon 427.225MHz
>>>  TLM downlink 437.325MHz
>>>  Linear Transponder downlink 435.200-435.250MHz
>>>                     uplink   145.940-145.990MHz
>>> 
>>> 
>>> JN1GKZ   Masa  Tokyo Japan
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>> _______________________________________________
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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!
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>