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

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

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

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

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

System Overview

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

Power Budget  Low Pressure Mercury Lamp 4 Watts

Budget  Corona Discharge Ozone Generator (Calibration)= $  30L Liquid Nitrogen (Calibration)= $  Calibration Sub Total= $  Light Source= $  Two Fans= $  HOBO Data Acquisition System= $  Pressure Sensor= $  Two Ultraviolet Detectors= $  Three Photovoltaic Panels= $  Optical Filter= $  Lucite cm 2 = $  Instrument Sub Total= $  Project Total = $

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

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

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