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CASAA-Sat launch


From: Fabien PELLET
Subject: CASAA-Sat launch
Date: Thu, 26 Dec 2024 08:53:13 +0100
User-agent: Mozilla Thunderbird

Dear all,

I would like to inform the GNURadio community that tomorrow 27 December 2024 is scheduled the launch of CASAA-Sat, a student nanosatellite from Marseille.

Bernard Repetti, CASAA-Sat project manager, informs us that the satellite will be launched by the Kinetica-1 rocket from the Jiuquan launch base (Inner Mongolia, China). The launch is scheduled for 27 December 2024 at 1.03 UTC.

The CASAA-Sat project of the Laboratoire d'Astrophysique de Marseille (LAM), supported by CNES, began in 2013. It involved more than 200 Master's students from Aix-Marseille University's IUT and engineering schools (ISAE, ESEO, etc.).

Designed in CubeSat 2U format (10 x 10 x 20 cm), this 2-litre nanosatellite carries a suite of sophisticated instruments:

The aim of these instruments is to map the South Atlantic Magnetic Anomaly (SAA), an area where the Earth's magnetic field is particularly weak, with unprecedented precision.



In addition to the amateur radio mission, there are 3 other objectives:

On the amateur radio side, AMSAT-Francophone helped Bernard Repetti with the amateur radio mission. An appeal was made to the Bouches-du-Rhône amateur radio community. Jean-François IOSCA (F1LVO) and Fabien PELLET (F4CTZ) responded. Together with AMSAT-Francophone, they contributed to the submission of the satellite frequency coordination request. Their strong commitment enabled the operating mode to evolve to the benefit of radio amateurs. Jean-François and Fabien, thanks to their proximity, have made improvements to the ground station and have also contributed their expertise to the development of the satellite.

The satellite will broadcast telemetry and images captured by the satellite.

The satellite uses the following amateur service frequencies:

Downlink frequency: 436.500 MHz, modulation 9600 baud BPSK G3RUH

The satellite uses AX.25 UI (Unnumbered Information) protocol frames.

Call sign is: CASAA-1

Uplink frequency for sending commands: 145.900 MHz

The document ‘TM/TC specifications for the CASAA-Sat nano-satellite’ describes the protocol used. : https://site.amsat-f.org/download/120557/?tmstv=1735157767

IARU link: IARU Sat Coordinator

Link to the project :Nanosats - LAM

Amsat-Francophone article on CAASAT

Every ham radio operator are invited to try to receive CASAA-Sat and report to the LAM any successfull reception.

Thanks,

Best regards,

Fabien, F4CTZ.



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