IARU Amateur Satellite Frequency Coordination

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ISX/CP11 Updated: 12 Dec 2016   Responsible Operator Madeline Tran KK6HFZ
Supporting Organisation Cal Poly  
Contact Person matran1194@gmail.com.nospam  
Headline Details: Ionospheric Scintillation eXplorer (ISX) is a 3U CubeSat with the mission of exploring the 3D structure of scintillation-scale irregularities of DTV signals in the ionosphere associated with Equatorial Spread F. The experiment will compare ground-to-space UHF scintillation measurements taken at multiple points along a flux tube. The payload on ISX is developed by SRI. There are 27 viable passes over a year. Passes will last no longer than 2.5 minutes. To acquire accurate data, the spacecraft must be aligned with the magnetic field within +/- 10 degrees of accuracy. This is achieved with a passive magnetic system, utilizing 0.3 cm3 HyMu80 hysteresis material per axis and four Neodymium permanent magnets. ISX consists of the following subsystems: • Power – solar panels generate power to be stored in the batteries. • ADCS – passive magnetic system (described above) • Camera – the camera will be used to take pictures to send back to the ground station for verification and analysis purposes. • Communications – the radio allows for twoway communication between the ground station and space station. The space station is sent commands from the ground station. The space station will send telemetry data and pictures to the ground station. Proposing a 9k6 UHF downlink using AX25 and FSK. Planning a 550km 85 degree inclination orbit with a launch from Rocket Labs in New Zealand in June 2017.** A downlink on 437.150 MHz has been coordinated** **An additional downlink on 5840MHz using 10Mb QPSK has been coordinated**
Application Date: 07 Aug 2016   Freq coordination completed on 11 Aug 2016

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