1. Vertical Profiling of Atmospheric Ozone Critical Design Review Western State College of Colorado Sarah Kampf Keith Nunn Brian Webb 04/02/04

2. Overview  Mission Description  Mission Goals  System Requirements  System Overview  Mass Budget  Project Organization  Budget  Schedule

3. Mission Description  To Design and Build a Light Weight, Energy Efficient Photometer  To Obtain a Vertical Profile of Ozone Concentration as a Function of Altitude

4. Mission Goals and NASA Benefits  To Develop an Understanding of Ozone Concentration as a Function of Altitude  To Develop a Cost Effective Method to Measure Ozone Concentration as a Function of Altitude  To Develop a Clear Understanding of Photometric Analysis  Demonstrates ability to measure ozone profile in a Mars- like environment

5. System Requirements  Low Pressure Mercury Lamp –Emission Spectrum Includes a line at 253.7nm  Interference Filter Centered at 253.7nm –Shield Photodiode Detector From Ambient Light  Fans Placed at Inlet and Outlet to Ensure Adequate Sampling  Ozone Concentration Measured Continuously as a Function of Altitude  Temperature and Pressure Measurements Recorded During Flight  All Data Stored on Board Using a HOBO Data Acquisition System

6. System Overview

7. Mass Budget  2129cm 2 Plexiglas=1000g  Mercury Lamp= 115g  Two Fans= 41g  HOBO= 27g  Mirror= 13g  Two Detectors= 82g  Three Solar Panels = 84g  Six Volt Power Source= 92g  Optical Filter= 4g -----------  Total Mass=1458g

8. Power Budget  Low Pressure Mercury Lamp 4 Watts

9. Budget  Corona Discharge Ozone Generator (Calibration)= $ 120.00  30L Liquid Nitrogen (Calibration)= $ 30.00 ----------------  Calibration Sub Total= $ 150.00  Light Source= $ 50.00  Two Fans= $ 10.00  HOBO Data Acquisition System= $ 80.00  Pressure Sensor= $ 250.00  Two Ultraviolet Detectors= $ 160.00  Three Photovoltaic Panels= $ 20.00  Optical Filter= $ 100.00  Lucite - 3000cm 2 = $ 10.00 ----------------  Instrument Sub Total= $ 680.00  Project Total = $ 830.00

10. Project Organization  Team Members –Keith Nunn –Sarah Kampf –Brian Webb –In Memory of Mike Roberts 1982-2004  Faculty Advisor –Dr. Theodore Violett

11. Schedule  Complete instrument design - 04/07/2004  Complete instrument assembly - 04/15/2004  Complete instrument calibration - 05/01/2004  On site visit - 07/2004  Launch - 08/07/2004

12. Special Thanks  Dr. Theodore Violett (Western State College)  Dr. Dale Orth (Western State College)  Colorado Space Grant