IARU Amateur Satellite Frequency Coordination

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Sprout Updated: 15 Oct 2012   Responsible Operator Yasuyuki Miyazaki JQ1YGV
Supporting Organisation Dept of Aerospace Engineering, Nihon University  
Contact Person miyazaki@forth.ero.cst.nihon-u.ac.jp.nospam  
Headline Details: A 6.7kg microsat of 200x200x220mm dimension. The main mission of SPROUT is as follows; 1. Operation of satellite by radio amateurs. SPROUT downlinks the digi-talker sound recorded preliminary in the satellite, the digi-peater voice and packet uploaded by radio amateurs, SSTV and FM packet of the photo of the earth taken by the satellite camera, which can be received by radio amateurs. SPROUT has two downlink frequencies and two uplink frequencies, and one uplink frequency and one downlink frequency will be open for radio amateurs. They can use the digi-peater and packet and use one camera mounted on SPROUT and take the photos by themselves, and downlink the photos by SSTV. 2. Demonstration of the deployment of the combined membrane structure and verification of the design method of the structure SPROUT has a triangular membrane supported by two tubes like framework. They are folded and stored in the satellite before the launch. After the launch, the nitrogen gas is injected into the tubes in space, and they extend, so that the membrane deploys (We call that structure “combined membrane structure”). 3. Demonstration of attitude determination and control of nanosatellite Will conduct the attitude determination experiment on orbit by using the sun sensors, gyros, and geomagnetic sensor, and conduct the attitude control experiment by using the magnetic torquers. Two U/V radio systems - one for TTC using CW, 1k2 AFSK and 9k6 GMSK packet and one for amateur operations using 1k2 AFSK packet. Planning to launch from Tanegashima Space Center into a 628km sun syncronous orbit.
Application Date: 22 Aug 2012   Freq coordination completed on 01 Jan 1970

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