usaf academy’s falconsat-2 program “learning space by doing space” c2c eric hutcheson
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Space Grant Symposium, Apr 2002 1
USAF Academy’s FalconSAT-2 Program“Learning Space by Doing Space”
C2C Eric HutchesonInformation Management NCO
CS-25 "Redeye"
Data Handling
Space Grant Symposium, Apr 2002 2
Introduction
FalconSat I Subsystem failure
FalconSat II Designed for greater autonomy
FalconSat I
Space Grant Symposium, Apr 2002 3
Overview
Hardware Operating System Software Tasks
Payload, Telemetry, Orbit, Download
Task Control Conclusion
Space Grant Symposium, Apr 2002 4
Hardware
Designed by Surrey Power System Intel StrongARM 1100
processor
Computerized Automotive Network (CAN) bus
Space Grant Symposium, Apr 2002 5
Operating System
BZL Cooperative multitasking
3 Part Task Design Create Process Finalize
Space Grant Symposium, Apr 2002 6
Software Tasks - Payload
Miniature Electrostatic Analyzer (MESA)
Smart Data Collection Fast/Slow/Test modes
Record and store Payload data
MESA
Space Grant Symposium, Apr 2002 7
Software Tasks - Telemetry
Housekeeping Commissioning mode
56 channels Normal operations
3 channels
Space Grant Symposium, Apr 2002 8
Software Tasks - Orbit
Two line element set NORAD
Predict start LOS, end LOS, start MESA, and end MESA
Space Grant Symposium, Apr 2002 9
Software Tasks - Download
Simplest Task Memory Management 32 bit pointers
Space Grant Symposium, Apr 2002 10
Task Control
Integration of Tasks Satellite commissioning Health Testing
Safe power down conditions
Space Grant Symposium, Apr 2002 11
Conclusion
Operational Autonomy Efficient Communications Robust Software
Back door capabilities Launch date
16 Jan 2003 STS-114
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