Main payload-building assignment

1

• Main payload-building assignment
• Basic components
• Payload box (select materials must be light (no
  more than 2 lb total pre-rigging weight), strong,
  insulating)
• Heater circuit (required)
• HOBO (monitor internal temp (at least) and
  external temp (probably), might also plug in one
  other sensor with voltage cable (like a solar
  panel))
• On-board data logging with BallonSat Easy flight
  computer and weather station
• Can send analog voltage data to the ground while
  in flight using Zigbee radio
• Camera (still or video) may look up/down/out
  depending on experimental needs
• Science/engineering experiments
• Characterize external temperature, pressure,
  relative humidity of atmosphere with weather
  station
• Document internal temperature (for spacecraft
  health) and relative humidity of payload box
  with HOBO
• Use the camera to do some interesting
  experiment, not just take pretty pictures
• Some ideas Layers of the atmosphere (possibly
  using filtering), curvature of the Earth,
  spectral content of sunlight using diffraction
  grating, characterize balloon size with altitude,
  analysis of balloon burst and/or post-burst
  chaos, landform identification/mapping,
  vegetation identification (possibly using
  filters), trying to take photos of the solar
  corona, etc.
• Do one additional experiment of your own
  choosing (must get explicit permission watch
  size and weight limitations)