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The Defense Meteorological Satellite Program (DMSP) program designs, builds, launches, and maintains several near polar orbiting, sun synchronous satellites monitoring the meteorological, oceanographic, and solar-terrestrial physics environments.
Each DMSP satellite monitors the atmospheric, oceanographic and solar-geophysical environment of the Earth. The visible and infrared sensors collect images of global cloud distribution across a 3,000 km swath during both daytime and nighttime conditions. The coverage of the microwave imager and sounders are one-half the visible and infrared sensors coverage, thus they cover the polar regions above 60 degrees on a twice daily basis but the equatorial region on a daily basis. The space environmental sensors record along track plasma densities, velocities, composition and drifts.

Hubble Space Telescope - Maintenance & Refurbishment - Lockheed

The Extravehicular Activity Development Flight Test - 05 consists of the payload bay hardware elements of Detailed Test Objective (DTO) 671, EVA Hardware for Future Scheduled Extravehicular Missions.  EDFT - 05's main objective is to demonstrate International Space Station (ISS) on-orbit, end-to-end EVA assembly and maintenance operations.  The other DTO's included in this test are DTO 672, Extravehicular Mobility Unit (EMU) Electrical Cuff Checklist and DTO 833, EMU Thermal Comfort and EVA Worksite Thermal Environment.  Another objective is to expand the EVA experience base for ground and flight crews.  Two EVA's will be performed on this mission to accomplish these DTO's.
The portside-mounted EDFT-05 hardware is in bay 7 and consists of the Orbital Replacement Unit (ORU) Transfer Device (OTD), a Pitch/Yaw Worksite Interface (WIF) Fitting, and Flight Support Equipment (FSE) to the sidewall carrier.
The starboard-mounted EDFT-05 hardware consists of bay 2 Portable Work Platform (PWP) components including the Articulating Portable Foot Restraint (APFR), Temporary Equipment Restraint Aid (TERA), and Work Station Stanchion (WSS).  Bay 7 contains the ORU Simulator and Carrier Assembly (OSCA) consisting of a Battery ORU Simulator attached to the Cargo Handling Interface Assembly (CHIA), and the Dry Carrier (DCC) Simulator.  Bay 8 houses an adapter plate with WIF's and a mounting location for the cable caddy. 
During launch and landing EVA equipment stowage requires orbiter middeck locker space and the starboard Portable Stowage Assembly (PSA).
Prior to scheduled EDFT - 05 activities, orbiter cabin pressure will be lowered to 10.2 psi and the standard EVA prebreathe protocols started.  EDFT - 05 activities require two crew members  to perform two full-duration EVA's and one crew member to provide Intravehicular Activity (IVA) support.

The tests are designed to evaluate equipment and techniques and buildexperience among astronauts and ground controllers in preparation for assembly of the International Space Station. Past EDFT spacewalks have evaluated equipment ranging from the labeling to be used on the exterior of the stationto the nuts and bolts to be used as connectors.