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From: | fpellet.f4ctz |
Subject: | Re: CASAA-Sat launch |
Date: | Sat, 28 Dec 2024 18:10:26 +0100 |
Hi Marcus, Unfortunatly, the rocket encountered a problem and the flight terminaison system had to be activated at about an altitude of 150km. As a consequence, CASAA-SAT will never transmit. We don't know at the moment if the lab will rebuild it for another launch. Best regards, Fabien. -------- Message d'origine -------- De : Marcus Müller <mmueller@gnuradio.org> Date : 28/12/2024 17:19 (GMT+01:00) À : discuss-gnuradio@gnu.org Objet : Re: CASAA-Sat launch darn! Missed the launch! This is exciting news! Please keep us updated! Do you have a GNU Radio Flowgraph with which interested readers could monitor the satellite? TLEs? Best regards, Marcus On 26.12.24 08:53, Fabien PELLET wrote: > 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: > > * > > A dosimeter to measure the flow of charged particles > > * > > A precision magnetometer > > * > > A high-resolution camera > > 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: > > * > > CASAA-Sat's first objective is to measure the doses deposited by this radiation, > particularly at the poles and in the South Atlantic Anomaly (SAA) where a higher flux > is expected. To do this, it has six dosimeters, two in each axis, capable of recording > the irradiation they receive over time. > > * > > The second objective of CASAA-Sat is to measure the local magnetic field and correlate > it with the irradiations. This field will then be compared with existing models such > as IGRF 13. > > * > > The third objective of CASAA-Sat is to capture the aurora borealis (to the north) and > aurora australis (to the south) by taking photos and correlating them with the > irradiance and magnetic field. > > 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 <https://iaru.amsat-uk.org/finished_detail.php? > serialnum=958>_ > > Link to the project :_Nanosats - LAM <https://www.lam.fr/formations/nanosats/>_ > > _Amsat-Francophone article on CAASAT <https://site.amsat-f.org/2024/12/23/casaa-sat-un- > nanosatellite-etudiant-de-marseille-a-lassaut-de-lanomalie-de-latlantique-sud-lancement- > prevu-le-26-decembre-2024/> > _ > > 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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