1. AXIOM Balloon Sat Team #2 Critical Design Review October 17, 2006 Gateway To Space Fall 2006 Dustin MartinBen Anderson Drew GottulaJacob Rivera Adam TrevizoStefan Quan

2. Mission Overview Primary Objective: Cosmic Ray detection at high altitude.Primary Objective: Cosmic Ray detection at high altitude. Imaging of the Earth at high altitude.Imaging of the Earth at high altitude. Expectations: More radiation detected at higher altitudes.Expectations: More radiation detected at higher altitudes.

3. Axiom Concept Design External Design: Foam Core CaseFoam Core Case US Flag DecalUS Flag Decal Plastic Camera PortholesPlastic Camera Portholes C A F E C D A D B C E Power Switches Washer Rims External Sensor Ports a +Z Side -Y Side -Z Side Camera Window A Power Switches External Sensors Camera Window B US Flag Washer Rim

4. Axiom Concept Design Internal Components: Flight String TubeFlight String Tube Geiger CounterGeiger Counter BASIC StampBASIC Stamp HOBO Data LoggerHOBO Data Logger Primary CameraPrimary Camera Secondary CameraSecondary Camera Top LevelBottom Level +Z Side Timing CircuitTiming Circuit 12 Volt Battery Pack (1)12 Volt Battery Pack (1) 9 Volt Battery9 Volt Battery Heating UnitHeating Unit I H I F E J I B C D G H I A

5. Axiom Design Concept Hardware List

6. Axiom Design Optics

7. Axiom Design Geiger Counter

8. Axiom Design Structure

9. Axiom Design HOBO

10. Axiom Concept Design Functional Block Diagram HOBO Internal Temperature External Temperature Timing Circuit BASIC Stamp Geiger Counter Power (9V and 12V batteries ) Camera 1 (internal power) Camera 2 (internal power) Heating Unit - Denotes a switch

11. Axiom Management Schedule EventDeadline Date Design Document Revision AOctober 6, 2006 Acquire Secondary CameraOctober 9, 2006 Primary Camera Calibration CompleteOctober 10, 2006 Acquire Basic StampOctober 11, 2006 HOBO Calibration CompleteOctober 12, 2006 Secondary Camera Calibration CompleteOctober 12, 2006 Design Document Revision BOctober 13, 2006 Foam Core Construction CompleteOctober 13, 2006 Acquire Geiger CounterOctober 14, 2006 Geiger Counter Construction CompleteOctober 15, 2006 Basic Stamp Calibration CompleteOctober 16, 2006 Insulation and Tube ConstructionOctober 16, 2006 Prototype Design CompletedOctober 17, 2006 Physical Testing on PrototypeOctober 18, 2006 Integration of all ComponentsOctober 20, 2006 Cold TestOctober 23, 2006 Ordering of all Back Up ComponentsOctober 24, 2006 Full Testing of Mock Final DesignOctober 30, 2006 Design Document Revision CNovember 9, 2006 Completed Final DesignNovember 5, 2006 Final System Tests, Checks, and Double ChecksNovember 10, 2006 LaunchNovember 11, 2006 ReconstructionNovember 14, 2006 Design Document Revision DNovember 27, 2006 Design ExpoDecember 9, 2006

12. Axiom’s Projected Budget Mass BudgetMass Budget Money BudgetMoney Budget

13. Axiom Test Plan Structural –Whip Test –Drop Test –Stair Pitch Test Environmental –Cold Test –Vacuum Test (if possible) Functional

14. Expected Results Up to a certain altitude, counts of cosmic and solar radiation per minute increase exponentially as altitude increases Above that altitude, the number of counts per minute decreases due to the thinning atmosphere where the radiated particles interact less with the particles of the atmosphere

15. Expected Results Primary cosmic rays collide with atmospheric particles, producing multiple energetic particles known as secondary cosmic rays. These secondary particles collide with more atmospheric particles and create even more secondary cosmic rays, an effect known as a cosmic cascade.