ISS Deployment (JAXA) - 2021-10-06 08:50 UTC - 11:00 UTC

Satellites & Observations Launches
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JAXA J-SSOD#19 cubesat deployment will be on 2021-10-06, see JA0CAW’s tweet.

There are four satellites in the J-SSOD deployer (source: JSR No.797):

  • CUAVA-1
  • Binar-1
  • Maya-3 & Maya-4

They were launched to ISS with CRS-23, see SpaceX Dragon-CRS23 thread for more information on the two amateur cubesats CUAVA-1 and Binar-1.

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Can we please get some temporary IDs allocated for these sats, so those of us running gr-satellites can get setup to try and decode some telemetry from Binar-1?

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Just added CUAVA-1 and Binar-1 as suggestions in satnogs-db, so they automatically got their SatNOGS Satellite ID & we can start adding transmitter data. This didn’t automatically assign a temporary NORAD ID though.

update: @fredy accepted the suggestions and assigned temporary NORAD IDs.

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Just to have it in a new post:

Binar-1 is now in DB with the temporary NORAD ID 99520 and
CUAVA-1 is now in DB with the temporary NORAD ID 99521.

@vk5qi Both CUAVA-1 and Binar-1 are now in DB-dev were you can test them.

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Maya-3 & -4 (each 1U) do also have amateur payloads and are IARU coordinated as well.

  • IARU Coordination: Maya-3 / Maya-4
  • Telemetry Beacon (for both, coordinated): 427.375 MHz, CW
  • APRS Downlink (for both, coordinated): 145.825 MHz

Their telemetry format is described in the Maya-3 & -4 high-level specifications.

Maya-3 suggestion added in DB with temporary NORAD ID 99522 and
Maya-4 suggestion added in DB with temporary NORAD ID 99523.

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Can we please get the suggestions for these above satellites approved?

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Done!

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I’ve added also some missing transmitters to the two Maya’s, so now we are almost ready for the deployment. It remains to find out the exact time :slight_smile:

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From amsat-bb:
The deployment sked is followings.
#1 0850-0940z Binar-1, Maya-3, Maya-4
#2 1030-1100z CUAVA-1

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CUAVA-1’s website now has been updated (barely) and says that they are using 9600 baud BPSK-G3RUH: https://www.cuava.com.au/projects/groundstation/

Still zero information on telemetry formats.

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Updated in DB, thanks for the info!

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Everything ready for this deployment. For now we use ISS TLE set for all the satellites.

Scheduling is done for the first 24h of the satellites, more specifically:

Satellite Temporary NORAD ID Observations
Binar-1 99520 146
CUAVA-1 99521 140
Maya-3 99522 114
Maya-4 99523 82

EDIT: For Mayas we have less observations as they both transmit on the same frequency.

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I will try to upload the telemetry format in a python file. [Processing: cuava-1-tlm-construct.txt…] But I haven’t been allowed to since I am a new user. Will try email later.

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Worst case you can paste it into a service like https://pastebin.com/ and send us a link here.

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@ivercairns I’ve updated your user status, please check if you can upload it now.

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OK. Here we go again. Hope this is what you need. cuava-1-tlm-construct.txt (5.3 KB)

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Thank you, Fredy. Just got it uploaded.

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Maya 3 and 4 are alive and have been received by “2370 - JE6VHE UHF QFH” station in SatNOGS Network - Observation 4825504.

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About Maya-3&4 we have also confirmation with one more observation by “2107 - JH4XSY-pi” station in SatNOGS Network - Observation 4825126

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Very weak detection by my station (my UHF antennas are not pointed south):
https://network.satnogs.org/observations/4825544/

Much better with my manual station:
https://www.amsat.se/2021/10/06/maya-3-maya-4-rx-after-deploy-2021-10-06/

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