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Oddballs Critical Design Review

Oddballs Critical Design Review. Team 8 : Grant Fritz, Jessica Brown, Stephanie Jalovec, Jennifer McGraw, Brian Roth, Evan Townsend 10/18/07. Mission Statement.

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Oddballs Critical Design Review

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  1. OddballsCritical Design Review Team 8: Grant Fritz, Jessica Brown, Stephanie Jalovec, Jennifer McGraw, Brian Roth, Evan Townsend 10/18/07

  2. Mission Statement • The purpose of this mission is to capture video of the sky at an altitude of 30 km using a balloon satellite in order to capture images of stars as they immerge in higher altitudes.

  3. Mission Overview • The mission is to determine the intensity of stars visible during the day at 30km using a calibration lamp as a standard. • The goal is to further develop the idea that a telescope can be used on a balloon satellite platform. A high altitude platform would be less expensive than a space telescope. • Smaller telescopes can be used to get images of similar quality to large ground-based telescopes. • With an affordable method of observation, more people will be able to have access to space imaging. • Balloon satellite would be above the clouds, which can often prevent astronomers on earth from observing. • Can be serviced between each launch.

  4. The purpose of this mission is to capture video of the sky at an altitude of 30 km using a balloon satellite in order to capture images of stars as they immerge in higher altitudes. Construct Balloon Satellite to improve understanding of high altitude conditions at 30 km for under $200 dollars by 11/10/07 Images of the stars shall be captured using a CCD video camera and a still image digital camera. A large helium weather balloon shall be used to acquire an altitude of 30km The structure of the balloon satellite shall be in the shape of a dodecahedron. The structure of the balloon satellite shall be in the shape of a dodecahedron. A budget of $200 dollars shall be maintained while keeping the mass of the balloon satellite under 800g. Imaging the sky at 30 km shall improve understanding of high altitude conditions by showing what magnitude stars can be seen during the day. The CCD camera shall be angled upward at 54° from horizontal, mounted on one of the faces of the upper half of the dodecahedron. The digital camera shall be angled upward at 54° from horizontal and mounted on another upward facing side of the dodecahedron opposite the CCD camera. The digital camera shall be an HP PhotoSmart digital camera.

  5. Design • Parts • 1500 cm2 Foam Core Provided • 1 Digital HP Photosmart E427 camera Provided • 1 GB Memory chip Provided • 1 Timing circuit kit Provided • 1 HOBO data logger Provided • 1 Heater kit Provided • 12 9Volt Batteries Provided • 12 12V Batteries Provided • 1 Roll of aluminum tape Provided • 1 Roll of Electrical tape Provided • 1 PVC tube Provided • 1 (PC164 CCD Camera) Provided by Eliot Young • 1 Video Recorder-7 Ordered through Eliot Young • Pentax Lens for PC 164 Provided by Eliot Young • Calibration Lamp Created by team

  6. Design

  7. Design

  8. Design

  9. Schedule

  10. Job Delegation

  11. Drop Test • We will perform 3 separate drop tests to simulate different possible landing sites • Balcony between ITLL and DLC • Balcony on East side of DLC • South Side Balcony of ITLL

  12. Cold Test • Hang Satellite inside cooler filled with dry ice • Prevent satellite from actually touching the ice

  13. Whip Test • We shall use objects that will imitate the weight and size of the subsystems • We will swing the satellite on a 1.5 meter string to simulate the g-forces of flight.

  14. Stare Stair Test • Drop down stairs in the DLC • Simulate multiple impacts of landing

  15. Subsystems Test • Test heater for heat out put. • Test capability of CCD camera to see stars at ground level • Ability to see 9th magnitude stars • Test capability of HP digital camera to see stars at ground level • Test timing circuit for functionality • Test hobo during Cold test • Test quality of DVR • Test calibration lamp for effectiveness

  16. Mission Simulation Test Test all systems for expected duration of the mission Functional Test Test all subsystems in concurrence Precedes mission sim test Final Test

  17. Expected Results • We expect the faintest stars visible at 30 km to be approximately 9th magnitude. • We expect to find the magnitudes of stars observed by comparing them to the standard lamp

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