NASA launches Earth-observing satellite
NASA’s National Polar-orbiting Operational Environmental Satellite System Preparatory Project (NPP), successfully separated from the Delta II 58 minutes after launch, and the first signal was acquired by the Tracking and Data Relay Satellite System. NPP’s solar array deployed 67 minutes after launch to provide the satellite with electrical power. NPP is on course to reach its sun-synchronous polar orbit 512 miles (824km) above Earth.
“NPP is critical to our understanding of Earth’s processes and changes,” said NASA deputy administrator Lori Garver. “Its impact will be global and builds on 40 years of work to understand our complex planet from space. NPP is part of an extremely strong slate of current and future innovative NASA science missions that will help us win the future as we make new discoveries.”
NPP carries five science instruments, including four new state-of-the-art sensors, which will provide critical data to help scientists understand the dynamics of long-term climate patterns and help meteorologists improve short-term weather forecasts. The mission will extend more than 30 key long-term datasets NASA has been tracking, including measurements of the ozone layer, land cover, and ice cover.
NPP serves as a bridge mission between NASA’s Earth Observing System (EOS) of satellites and the next-generation Joint Polar Satellite System, a National Oceanic and Atmospheric Administration (NOAA) program that will also collect weather and climate data.
Scientists will use NPP data to extend and improve upon EOS data records.
Source : Aerospace Testing International