1. Hardware Systems Review
Stanford AA236
11 July 2006

2. Systems Strategy Non-Traditional Review Dual-Ended Approach
Bridging ConOps and Existing Design is Difficult
Create Minimal Set of Systems for a Satellite
Prioritize All Systems
Dual-Ended Approach
Current Subsystems
KySat Concept of Operations
Provide Focus
Limited Time to Complete KySat-1
Required to Have Minimum Working System in August
11 July 2006

3. KySat System Priorities
Critical Systems
Frame
Solar Panels
Electrical Power System
Batteries
VHF / UHF System
VHF / UHF Antenna
Processor Board
Required Systems
Passive Attitude Control
Mass Storage
DTMF Decoder / Reset
Real Time Clock / Backup
Watchdog Timer
Non-Critical Systems
Camera
S-band
MP3 Decoder Chip
Attitude Determination
Active Attitude Control
Separate Beacon
Dosimetry Test
SEU Test
Deorbit
11 July 2006

4. Critical Systems Frame Solar Panels Power System Batteries
CubeSat Kit
Solar Panels
Yet to be Selected
Power System
Selected
Need to Order/Evaluate
Batteries
Need Mounting System
VHF / UHF System
Selected
Need to Order/Evaluate
VHF / UHF Antenna
Mounting
Deployment
Material
Processor Board
CubeSat Kit
11 July 2006

5. Required Systems DTMF Decoder / Reset Mass Storage
Decoder Selected
Need Back-End Logic, Front-End Conditioning
Mass Storage
FLASH Selected, Need File System
Passive Attitude Control
Material Selected, Unknown Orientation
Real Time Clock / Backup
IC Selected, Need PCB Designed & Built
Watchdog Timer
11 July 2006

6. Open Items Bogota EPS Power Cycling VHF / UHF Power Cycling
Errors in Documentation
5 Solar Panel Stacks
Full-Power Reset
Control Battery Heater
Over-Current Control
Interface to Processor
Power Cycling
Microhard
Processor
VHF/UHF
VHF / UHF
Design and Power
AX.25 Software Implementation
AX.25 Error Checking
APRS System Compatible
Power Cycling
Microhard
Processor
VHF/UHF
Serial Sharing
11 July 2006

7. Systems Review
Stanford AA236
11 July 2006