IARU Amateur Satellite Frequency Coordination

 
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Greencube Updated: 24 Jan 2021   Responsible Operator Fabio Santoni IU0MFM
Supporting Organisation DIAEE Sapzienza University of Rome  
Contact Person fabio.santoni@uniroma1.it.nospam  
Headline Details: A 3U CubeSat. The Greencube mission is designed and developed by students of Sapienza University of Rome, both regarding the space and the ground segment. Students are involved in all the aspects of the satellite development and during all the phases of the mission. The satellite will be placed in a very peculiar circular orbit, at 6000km of altitude and 70 degrees of inclination. The main radioamateur aim of the mission is testing a digipeater system in this “above- LEO” spacecraft, capable to reach a very large portion of the Earth, both in real time and in a “store and forward” configuration. The radioamateur/educational aim of the mission is testing a communication system capable to download unique pictures of the Earth, taken by an educational (low definition) camera placed externally form the satellite. In addition, the telemetry will be downlinked periodically with public formats and will provide a clear picture of the behavior of the hardware in the space environment. The main mission is devoted to an experiment in plants growing in a microgravity environment, with a miniaturized life-support system including the environment sensors (CO2, O2, temperature, pressure) and a micro-camera installed internally to the system to assess the plant growing status. Finally, information on the survival of electronics in the inner Van Allen belt, will be gained for radio amateur future missions. The radioamateur/educational return of the mission for the students involved will focus on the experimental activity for the development and management of a digital radio communication system suitable for a distant orbit in a very adverse radiation environment, within the inner VanAllen belt. Proposing a UHF downlink with GMSK at 1k2 or 4k8 data rate. Planning a Q2 2021 launch from Kourou into a 6000 km circular orbit at 70 degree inclination with a period of 228 minutes
Application Date: 24 Jan 2021   Freq coordination completed on

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