1. THE AVENGERS Measuring Atmospheric Ozone and NO x gases

2. General The primary goal of the ITO sensor project is to measure the concentration of Ozone (O 3 ) and NOx (NO, NO 2 ) gases as the function of altitude. The concentration of these gases will specify the current situation of ozone depletion. These measurements will be compared to past measurements made by other payloads.

3. Science The measurement from the sensor is done as the function of physical quantities as the sensor might function in a different way depending on the altitude, temperature, humidity and pressure. The obtained measurements are compared with various experiments showing the precise concentration of Ozone and NOx gases. Different halogens, such as Flourine, Chlorine, and Iodine have been used to accelerate this process.

4. Technical The concentration of Ozone and NOx gases is calculated as the function of voltage produced across the sensor. As the resistance in the ITO sensor varies with the concentration of these gases, different voltages are produced with the same amount of input current in the circuit board. The Real Time Clock will be utilized as a counter and a timestamp will be printed for each measurement so that it can be related by time to altitude.

5. Looking Ahead Design Goal: 2/2/2010 Development Goal: 3/2/2010 Fabrication: 4/10/2010 Liftoff! (Palestine): 5/25/2010