1. Team TWSS Launch Readiness Review
Steven Ramm
Ryan Walker
Allen Marshall
Andrew Winthrop
Mathew Kerwin
Victor Taberski
11/11/2008

2. H.A.K.U.N.A.M.A.T.A.T.A. Mission Overview
High Altitude Kameras United for Near-infrared Atmospheric IMaging of stars Also with Temperature Assessment that is Totally Awesome
Mission Statement: Team T.W.S.S. will design and construct a BalloonSat that will simultaneously image the stars in both the visible and near-infrared spectrum in order to empirically measure at which altitude stars become visible within each unique spectrum

3. Design Overview
Camera’s mounted side by side in box within specially designed cradle/holster
Shape of irregular Triangular Prism makes optimum use of space while keeping vital components close to the heater – also keeps camera’s mounted at 45 degree angle

5. Test Results Drop and Stair Tests: Whip and Swing Tests:
Successfully accomplished
Dropped from height of 20 feet
Rolled down long set of stairs
Repeated each three times
Sustained negligible damage, revealing the overall structural integrity of the design
Whip and Swing Tests:
Performed three times
Cameras and other subsystems stayed in mounting positions
Revealed that original mounting positions were most optimal

7. Cold Test: HOBO Data
Cold Test began at roughly 11:00 and ended roughly four hours later at 15:25
Internal temperature dropped below zero roughly 2.3 hours into the Cold Test
Cold Test ended

8. Batteries expanded during Cold Test, causing them to rupture.

9. Cold Test Science Results:
Visible Light Camera:
Took over 500 pictures
Ran for whole duration of test
Infrared Camera:
Took 2 pictures due to an unfortunate/unlucky wiring malfunction that has since been corrected for
Experienced non temperature malfunction early in test
Summary:
While the temperature eventually dipped below zero degrees the camera was able to keep functioning

10. Pictures taken w/o near infrared filter
Pictures taken with near infrared filter

11. Prediction of Results
Once stars start to become visible, the rate at which stars become distinguishable will rapidly increase in an exponential manner
Expected relationship
of the number of star’s visible with respect to altitude

12. Biggest Worries
9-Volt batteries will rupture as they did during cold test
Camera’s will not synchronize correctly and will end up taking pictures of different sections of the sky
Victor’s hair will get caught in balloon’s rope and carry him away into space.

13. Requirement Compliance
Weight: g Total funds remaining: $ Balloon attachment to RFP spec: Check Sharp edges and burrs removed: Check Flight string fits through box: Check Quality of box construction: Check Corners aluminum taped: Check Switches Identified: Check Switches Secured in off position: False Team info in two places: Check American Flag: Check Drop Test Passed: Check Whip Test Passed: Check Cold Test Passed: Partially Mission Life 3 hours: Check Test Pictures taken from inside box: Check Hobo Delay Start: False Cameras unobstructed: Check External Temperature Sensor 1 inch out: Check