IARU Amateur Satellite Frequency Coordination
 
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Descent Updated: 20 Jul 2018   Responsible Operator Vidushi Jain VE3ARY
Supporting Organisation Lassonde School of Engineering @ York University  
Contact Person vidushij@my.yorku.ca.nospam  
Headline Details: This mission entails the development and launch of a Deorbiting Spacecraft using Electrodynamic Tether (DESCENT). The key questions of the mission are centered on the tether electrodynamics and spacecraft deorbit using an electrodynamic tether (EDT). The DESCENT mission will fly a 2U-CubeSat electrodynamic tether system that will be built by the team and launched from the International Space Station (ISS) via a US launch service provider – NanoRacks. The launch will take place early 2019, depending on the availability of launch vehicle. The mission will demonstrate the feasibility of deorbiting spacecraft by EDTs. The operation and observation of CubeSat EDT deorbit process will take place over its entire orbital lifetime, which is expected to be roughly 2 months. The deployed system will consist of two 1U-CubeSats (mother and daughter satellite) connected by a 100m long bare tape electrodynamic tether. For launch, the CubeSats will be connected together to form a 2U configuration with the EDT stowed in the daughter satellite. After ejection from the ISS, the daughter satellite will separate from the mother satellite and extend the EDT to its full length. The deployment will be in the local vertical downward direction, and the pair will have a mean orbit altitude of 400km at the time of orbit insertion. Proposing a 19k34 GMSK UHF downlink. Planning a NanoRacks deployment from the ISS in Jan 2019 ** A downlink frequency of 435.775 MHz has been coordinated**
Application Date: 30 Apr 2018   Freq coordination completed on 19 Jul 2018

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