CUTE-1 Keith Bux Outline Who did it

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CUTE-1 Keith Bux

Outline Who did it. l When it launched and how long it’s been running. l Launch and Mission l Specifications l Different Subsystems l

WHO CUTE (CUbical Titech Engineering satellite) l Titech cubesat project team l Tokyo Institute of Technology l Space Robotics and Teleoperations Laboratory (SRTL) l

WHEN One cubesat of the first launch in May 2002 l Currently still runs as of mid January 2007 l

Launch and Mission DNEPR l Sun-synchronous polar orbit l Altitude: 650 km l launched on MPA (multi-payload adapter), can launch 6 P-PODS l

Launch and Mission l Communication l CW-transmitter sends CW-telemetry l FM-transmitter sends FM-telemetry on two different protocols l Ax. 25 l TITech l Change original communication protocol by command uplink l Broadcast CW and FM-telemetry on world wide web

Launch and Mission l Sensing l Measure acceleration, angular velocity, and temperature and transmit the data l Deployment Mechanism l Deploy solar paddle by command uplink

Specifications In house 1 u made from Mg alloy (AZ 31) l Deployable solar battery paddle l Three mono-pole antennas l l Uplink: 144 MHz l Downlink: 430 MHz X 2 COTS ( commercial off-the-shelf) components l All other parts were Teflon coated (paddle deployment) l

Specifications l CPU: H 8/3334 Y (Hitachi) l Power l 66 m. W (3. 3 V) Modem IC MX 614 (MX_COM) l Power 6 m. W (3. 3 V)

Attitude determination Piezoelectric vibrating gyroscope X 4 l 2. 7 l Dual axis accelerometer X 2 l 3. 0 l - 5. 5 V 5 m. A – 5. 25 V. 6 m. A CMOS Sun sensor (LSS Original)

EPS l Lithium-Ion Battery X 4 l l Nominal Capacity: 1040 m. Ah Nominal Voltage: 3. 8 V Charging Voltage: 4. 2 ± 0. 05 V Solar cells 16. 9% efficient l l l Voc: 630 m. V Isc: 1125 m. A VL: 530 m. V IL: 1308 m. A Fill factor: . 78

Structure

References l http: //lss. mes. titech. ac. jp/ssp/cubesat/inde x_e. html

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