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Mission Critical Requirements

Driven by Rules and the Rocket

  • The payload must be deployed from the rocket.
  • The payload must conform to the 3U cubesat form factor.
  • The payload must weigh at least 8.8lbs (4kg).
  • Only 20% of the payload mass can be non-functional.
  • The payload must be recoverable.
  • The payload must have redundant recovery systems.
  • The payload must land at less than 30 ft/s (9.1 m/s).
  • The payload's location must be real-time tracked by ESRA Mission Control Center (MCC).

Primary Objective Requirements

Not mission critical, but top level

  • The payload will live stream video to the ground during flight.

Derived Requirements

Requirements derived from MC and PO requirements

  • drogue chute
    • passive deployment
  • one downward facing camera
  • local (non-streamed) camera upward/sideward (maybe)
    • no reason to not put as many we can fit/power
    • vertical would be cool (see the parachute)
      • less overlapping information that downward and upward
  • name idea: COTS in 4K
  • Tracking: BRB
  • we need to power the cameras
    • whole lotta 2S LiPos
    • 2x Flight computers
    • 2x Cameras (and transmitter)
  • we need a video transmitter
    • 2.4 GHz vs. 5.8 GHz 1W
  • how do we get signal to the ground
    • directional antenna somewhere
    • cool modulation - spreading sequence, something else


Secondary Objective Requirement(s)

driven, optional, fun

  • the payload must speak in jims voice
  • Small streamer for visibility

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