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Spacecraft and Instruments

The Suomi NPP space segment is comprised of six elements. The spacecraft, the five instrument/sensor payloads, and the associated ground support equipment and simulators.

The spacecraft is a member of the Ball Configurable Platform (BCP) family of spacecraft designed for cost-effective, remote sensing applications. Its proven design accommodates a wide range of payloads, including optical applications with sub-meter resolutions and synthetic aperture radar. The NPP spacecraft bus is the eighth of 11 spacecraft built by Ball Aerospace on the same BCP 2000 core architecture. In all, this architecture has more than 50 years of successful on-orbit operations. The BCP 2000 was designed to accommodate a wide variety of Earth-observing payloads that require precision pointing control, flexible high-data throughput and downlinks, and controlled re-entry. The NPP spacecraft incorporates both MIL-STD-1553 and IEEE 1394 (FireWire) data networks to support the payload suite. The spacecraft has a 7-year design life, with a five-year 5-year mission life.

Ball Aerospace designed and built the spacecraft bus, under contract to Goddard Space Flight Center, and was responsible for integrating the instruments and for performing satellite-level testing and launch support.

The five instruments manifested for flight on the Suomi NPP spacecraft trace their heritage to instruments on NASA's Terra, Aqua and Aura missions, on NOAA's Polar Operational Environmental Satellite (POES) spacecraft, and on DOD's Defense Meteorological Satellite Program (DMSP).

The spacecraft directly transmits stored mission sensor data to a receiving station in Svalbard, Norway, and will also provide continuous direct broadcast of real-time sensor data. The mission data will be routed on communications networks from Svalbard to the continental United States.

The five instruments on the NPP satellite are:
  • Advanced Technology Microwave Sounder (ATMS)

    22-channel passive microwave radiometer, to create global models of temperature and moisture profiles that meteorologists will enter into weather forecasting models.
  • Cross-track Infrared Sounder (CrIS)

    Michelson interferometer, will monitor characteristics of the atmosphere, such as moisture and pressure that will be used to produce improvements in both short-and-long term weather forecasting.
  • Ozone Mapping and Profiler Suite (OMPS)

    OMPS, built by Ball Aerospace, incorporates an advanced nadir-viewing sensor and a highly innovative limb-viewing sensor. OMPS instrument continues Ball's history of building ozone-measuring instruments and will continue the long-term continuous data record of ozone measurements from space.
  • Visible Infrared Imaging Radiometer Suite (VIIRS)

    VIIRS, developed by Raytheon Space and Airborne Systems, has a 22-band radiometer similar to the MODIS instrument. It will collect visible and infrared views of Earth's dynamic surface processes, such as wildfires, land changes, and ice movement. VIIRS will also measure atmospheric and oceanic properties, including clouds and sea surface temperature.
  • Clouds and the Earth's Radiant Energy System (CERES)

    3-channel radiometer measuring reflected solar radiation, emitted terrestrial radiation, and total radiation, will monitor the natural and anthropogenic effects on the Earth's total thermal radiation budget.





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NPP satellite photo

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