CubeSat Developers Workshop 2008martins/cubesat/ACS/7-ION2...ION2 UNIVERSITY OF ILLINOIS CubeSat...

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ION2 UNIVERSITY OF ILLINOIS CubeSat Developers Workshop 2008 Alex Ghosh, Master’s Candidate, Aerospace [email protected] Kevin Bassett, Master’s Candidate, Electrical [email protected]

Transcript of CubeSat Developers Workshop 2008martins/cubesat/ACS/7-ION2...ION2 UNIVERSITY OF ILLINOIS CubeSat...

Page 1: CubeSat Developers Workshop 2008martins/cubesat/ACS/7-ION2...ION2 UNIVERSITY OF ILLINOIS CubeSat Developers Workshop 2008 Alex Ghosh, Master’s Candidate, Aerospace aghosh2@uiuc.edu

ION2UNIVERSITY OF 

ILLINOIS

CubeSat Developers Workshop 2008

Alex Ghosh, Master’s Candidate, Aerospace [email protected]

Kevin Bassett, Master’s Candidate, Electrical [email protected]

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Ideal Missions

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Assembly Video

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Payload InterfaceTop Plate InterfaceAvailable Volume: 90 mm x 90 mm x 127‐240 mmAvailable Payload Mass: 750‐1600g

Versatile Data InterfaceAsync SerialSPI / I2C

On Board StorageData package generation and queuing

Example: Dual-PMT Experiment

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Documentation

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Scalable

Single Component UpdatePPT scales with larger arrayAdditional volume available for:

PayloadsReaction ADCSStationkeeping Thruster

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Service Module

Common thermal path to radiator

Circuit Stack

Integrated power and data backplane

Expandable and reconfigurable

Trench for system cabling

Batteries

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Power

Power Board

Supervisor µC with beaconing capability

Power Point Tracker / Battery Charger

3.3V @ 5A

5V @ 5A

12V @ 1A

Spectrolab Triple Junction Solar Cells

27% efficiency

Lithium Polymer Batteries

7.4V – 2200mAh

Integrated cell balancer

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C&DH & Communications

Radio (Dataradio DM‐3475)

70cm Amateur Band

.5W – 2W variable Tx Power

CPU (Ti OMAP 5912)

Dual Core ARM9 / C55x DSP 

192 MHz

Linux 2.6 kernel

C&DH daemon ‐ iond

DSP accelerated TNC

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ADCS

3 axis magnetometer and accelerometerSun SensorOn board processing and control logic3 axis variable magnetic torque coils (0‐±0.106Am2)Estimated 2 hour de‐tumbling time

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rollpitchyaw

X coilY coilZ coil

Duty cycle of Torque Coils Vs. Time

Angular Body Rates Vs. Time

De‐Tumbling

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ION2

A second generation CubeSat based on a scalable reconfigurable bus architecture

Expected Completion : Summer 2009