Initial Testing Procedure

1. Verify system alignment and sensor readings
2. Request Telemetry of position
3. Command ADCS to point in specified location
4. Manually Perturb chassis gently to rotate spacecraft on air bearing at rate of 10 deg/second around z-axis
5. Simulates ejection of spacecraft and detumble.
6. Check if Maximum tumbling rate exceeded

General Overview:

• Induce some rotation in the satellite on the air bearing.
  • Manually with human perturbation
    • Introduces randomness → deployment will induce random torques
  • Remotely through Tensor Tech Interface
    • Consistent initial rotations can be made along defined axes.
• Take one set of measurements with detumbling disabled and another with detumbling activated.
  • Measure angular velocities → detumbling will appear as decreased values
    • Tensor tech induced rotation → data between trials can be compared mathematically
  • Measure Magnetorquer Magnetic Moment → When moment duty cycles are 0, satellite is fully detumbled
• Tensor Tech enters safe mode if tumbling exceeds 360 deg
• Detumbling from 30 deg/s to 1 deg/s takes less than 12 hours
  • Can use stronger magnetic fields to speed up testing
• Repeat testing for various magnetic field strengths
  • Necessary? Full detumbling may take too long. Analyze data to demonstrate detumbling occurs or use high magnetic fields to fully detumble
• Do we need Ground Truth Vision System ?

Testing Procedure Revised:

Setup

1. Stabilize Module on air bearing.
2. Verify system alignment/sensor readings
   • TODO: make rigorous