The Solar Extreme Ultraviolet (EUV) Irradiance Rocket Experiment is a program which involves taking various measurements of the solar EUV spectrum from a NASA sounding rocket. This rocket will be launched in September 1993 from White Sands Missile Range and will study the solar EUV spectral irrad... Show moreThe Solar Extreme Ultraviolet (EUV) Irradiance Rocket Experiment is a program which involves taking various measurements of the solar EUV spectrum from a NASA sounding rocket. This rocket will be launched in September 1993 from White Sands Missile Range and will study the solar EUV spectral irradiance as well as irradiance effects on the upper atmosphere. The solar flux measurements collected by the rocket are important because EUV solar radiation, which does not reach Earth's surface, is a phenomenon which is not completely understood due to lack of data. This rocket mission will study a spectral range of 0.1 to 120 nm by using three different solar EUV instruments to take measurements simultaneously. Additionally, far ultraviolet. (FUV) airglow measurements will be taken from the rocket¡ payload in order to study the solar-photoelectron relationship. My research for this rocket program included a study of the photometric and gain calibration for the Solar Avalanche Photodiode (SAP), analysis of the solar x-ray image taken from a previous rocket flight, wiring of a battery test box, and Computer Aided Drawing (CAD) design work on the payload wiring. The description of the SAP and calibration techniques as well as image analysis techniques are included along with results in this report. Show less