Data Handling USAF Academys Falcon SAT2 Program Learning

Data Handling USAF Academy’s Falcon. SAT-2 Program “Learning Space by Doing Space” C 2 C Eric Hutcheson Information Management NCO CS-25 "Redeye" Space Grant Symposium, Apr 2002 1

Introduction Ø Falcon. Sat I ü Ø Subsystem failure Falcon. Sat II ü Designed for greater autonomy Falcon. Sat I Space Grant Symposium, Apr 2002 2

Overview Ø Ø Ø Hardware Operating System Software Tasks ü Ø Ø Payload, Telemetry, Orbit, Download Task Control Conclusion Space Grant Symposium, Apr 2002 3

Hardware Ø Designed by Surrey ü ü Ø Power System Intel Strong. ARM 1100 processor Computerized Automotive Network (CAN) bus Space Grant Symposium, Apr 2002 4

Operating System Ø BZL ü Ø Cooperative multitasking 3 Part Task Design ü ü ü Create Process Finalize Space Grant Symposium, Apr 2002 5

Software Tasks Payload Ø Ø Miniature Electrostatic Analyzer (MESA) Smart Data Collection ü Ø Fast/Slow/Test modes Record and store Payload data MESA Space Grant Symposium, Apr 2002 6

Software Tasks Telemetry Ø Ø Housekeeping Commissioning mode ü Ø 56 channels Normal operations ü 3 channels Space Grant Symposium, Apr 2002 7

Software Tasks Orbit Ø Two line element set ü Ø NORAD Predict start LOS, end LOS, start MESA, and end MESA Space Grant Symposium, Apr 2002 8

Software Tasks Download Ø Ø Ø Simplest Task Memory Management 32 bit pointers Space Grant Symposium, Apr 2002 9

Task Control Ø Ø Ø Integration of Tasks Satellite commissioning Health Testing ü Safe power down conditions Space Grant Symposium, Apr 2002 10

Conclusion Ø Operational Autonomy ü ü Ø Ø Efficient Communications Robust Software Back door capabilities Launch date ü 16 Jan 2003 STS-114 Space Grant Symposium, Apr 2002 11