ELECTRICAL and MECHANICAL

Attitude determination and control (ADCS):

Attitude determined from gyroscope, magnetic field and solar sensor measurements, and is corrected using set of magnetic torque coils.

ADCS sensors

• gyroscope
• magnetometers
• solar cells

ADCS actuators

• magnetic torque coils

Platform monitoring and control:

Sensor data (voltages, temperatures, orbit and attitude parameters) are measured periodically and their values checked for safe health. Monitoring data is sent to the ground station every minute by telemetry.

• all sensor data

Power control:

Need to able to control power supply and activation of units for low power (safe) modes.

Data storage:

To store telemetry, sensor and payload

• data storage unit with read and write access

Deployment:

• Burn wire circuit control

PAYLOAD

CONOPS

• To determine sequencing of events
• Ground station access

Single board computer

• Requirements for this item's software

SDR/Data generation

• Data rate/format
• Encoding scheme

Watchdogs/Error corrections requirements

GPS connection into compute module

Interface as listed in requirements v1 document "The payload interface with the motherboard shall include regulated power, a UART serial data connection between the single-board computer and the ARM microcontroller, and a master enable pin to that completely powers off the payload when pulled low."