Showing posts with label NPOESS. Show all posts
Showing posts with label NPOESS. Show all posts

Wednesday, October 19, 2011

NASA NPP Launch: Delayed for 24 hours

The launch of the NPOESS Preparatory Project (NPP) spacecraft aboard a United Launch Alliance Delta II rocket from Vandenberg Air Force Base has been retargeted for Friday, Oct. 28.

The postponement for at least 24 hours will allow time to complete the necessary engineering review before the payload fairing is installed around the spacecraft.

The launch window on Oct. 28 is unchanged and extends from 2:48:01 a.m. - 2:57:11 a.m. PDT.

NPP represents a critical first step in building the next-generation of Earth-observing satellites.

NPP will carry the first of the new sensors developed for this satellite fleet, now known as the Joint Polar Satellite System (JPSS), to be launched in 2016.

NPP is the bridge between NASA's Earth Observing System (EOS) satellites and the forthcoming series of JPSS satellites.

The mission will test key technologies and instruments for the JPSS missions.

Read More on the NPP Mission here

Tuesday, September 28, 2010

NASA NPOESS: National Polar-orbiting Operational Environmental Satellite System


Ball Aerospace technicians perform a pop-and-catch partial deploy of the NASA National Polar-orbiting Operational Environmental Satellite System (NPOESS) Preparatory Project (NPP) weather satellite's solar array during this week's successful pre-environmental review in advance of flight environmental testing.

This is one of the final satellite activities being done prior to the Vibration testing, the first phase of environmental tests. Credit: Ball Aerospace.

A group of multi-disciplinary experts from NASA and NOAA, as well as a number of independent reviewers conducted the pre-environmental review of the five-instrument satellite.

The review team assessed the satellite test activities completed to-date, the completeness and adequacy of the environmental test plans, and determined the satellite is ready to proceed with its environmental test campaign.

"We are confident that the NPP satellite systems are robust and we are preparing the satellite to undergo rigorous environmental testing," stated Ken Schwer, NPP Project Manager, at NASA's Goddard Space Flight Centre. The launch is slated for October 2011.

The five-instrument suite includes: the Visible/Infrared Imager Radiometer Suite (VIIRS); the Cross-track Infrared Sounder (CrIS); the Clouds and the Earth Radiant Energy System (CERES); the Advanced Technology Microwave Sounder (ATMS); and the Ozone Mapping and Profiler Suite (OMPS).

NPP's advanced visible, infrared, and microwave imagers and sounders will improve the accuracy of climate observations and enhance capabilities to the nation's civil and military users of satellite data.

NPP is designed to provide continuity with NASA's Earth Observing System (EOS) satellites for climate observations and to provide the operational weather community with risk reduction for the next generation of weather satellites.