Joint Polar Satellite System

Joint Polar Satellite System
NOAA · Public domain · source
Name	Joint Polar Satellite System
Country	United States
Operators	National Oceanic and Atmospheric Administration; National Aeronautics and Space Administration
Manufacturers	Ball Aerospace; Lockheed Martin; Northrop Grumman
Status	Operational
Launched	2011–present
Orbit	Sun-synchronous orbit
Type	Polar-orbiting environmental satellite

Joint Polar Satellite System

The Joint Polar Satellite System is a series of polar-orbiting satellite spacecraft developed for operational weather forecasting and environmental monitoring by National Oceanic and Atmospheric Administration and National Aeronautics and Space Administration with launch services provided by United Launch Alliance and SpaceX. The program interfaces with legacy programs such as NOAA-20 predecessors and successor programs including Geostationary Operational Environmental Satellite initiatives, supporting agencies like National Weather Service and United States Department of Commerce. JPSS missions provide continuity of data products used by European Organisation for the Exploitation of Meteorological Satellites, Japan Meteorological Agency, and World Meteorological Organization networks.

Overview

JPSS satellites operate in Sun-synchronous orbit to deliver global coverage for atmospheric sounding, sea surface temperature retrievals, cryosphere monitoring including Arctic sea ice extent and Greenland ice sheet observations, and land surface characterization used by United States Geological Survey and Environmental Protection Agency. The constellation carries instruments derived from research programs including National Polar-orbiting Operational Environmental Satellite System concepts and complements geostationary assets like GOES-R Series. Data streams feed operational centers such as National Centers for Environmental Prediction and climate research facilities like NOAA's National Centers for Environmental Information and academic institutions including Massachusetts Institute of Technology, University of Colorado Boulder, and Scripps Institution of Oceanography.

History and Development

JPSS traces roots to joint planning between Department of Commerce and Department of Defense efforts after cancelation of earlier programs like National Polar-orbiting Operational Environmental Satellite System and realignment following the Nunn-McCurdy Amendment reviews. Prime contracts were awarded during administrations including the George W. Bush and Barack Obama terms, with industry partners such as Ball Aerospace, Raytheon, and Lockheed Martin contributing to platform design. Development milestones intersected with programmatic events like budgetary negotiations in United States Congress, oversight by Government Accountability Office, and technical reviews by National Research Council panels. International coordination evolved via memoranda with European Space Agency and bilateral data exchange agreements with Japan Aerospace Exploration Agency and Canadian Space Agency.

Spacecraft and Instruments

JPSS spacecraft bus designs incorporate heritage from Defense Meteorological Satellite Program and commercial platforms produced by Northrop Grumman and Boeing. Core instruments include the Visible Infrared Imaging Radiometer Suite (VIIRS), advanced sounders derived from Cross-track Infrared Sounder concepts, the Ozone Mapping and Profiler Suite (OMPS), and the Clouds and the Earth's Radiant Energy System (CERES) flown on various Earth science missions. Payload capabilities enable measurements comparable to research sensors flown on Aqua (satellite), Terra (satellite), and Suomi National Polar-orbiting Partnership. Instrument calibration and validation involve field campaigns with agencies such as National Institute of Standards and Technology and research centers like Jet Propulsion Laboratory and NOAA's Cooperative Institute for Research in the Atmosphere.

Launches and Mission Operations

Launches are conducted from ranges including Vandenberg Space Force Base and utilize vehicles from United Launch Alliance and SpaceX Falcon 9 under contracts overseen by NASA Launch Services Program and NOAA Satellite Operations Facility. Mission operations integrate ground segments at NOAA Satellite Operations Facility and data processing centers at NESDIS and partner institutions such as University of Wisconsin–Madison Space Science and Engineering Center. Early JPSS launches included satellites sequenced after Suomi NPP and NOAA-20, with anomaly investigations informed by panels from National Academies of Sciences, Engineering, and Medicine. Command and control employ standards shaped by Federal Aviation Administration range safety and interagency coordination with United States Space Force.

Data Products and Applications

JPSS delivers operational products for weather prediction at centers like European Centre for Medium-Range Weather Forecasts and UK Met Office, marine forecasts used by National Marine Fisheries Service, disaster response support for Federal Emergency Management Agency, and climate records contributed to Intergovernmental Panel on Climate Change assessments. Data types include radiances, retrieved profiles, aerosol optical depth, sea ice concentrations, and surface albedo datasets consumed by research groups at NASA Goddard Space Flight Center, NOAA Geophysical Fluid Dynamics Laboratory, and Princeton University. Applications span agricultural monitoring with United States Department of Agriculture, public health advisories by Centers for Disease Control and Prevention, and aviation support via Federal Aviation Administration systems.

International Collaboration and Partnerships

JPSS programmatic and data-sharing partnerships extend to European Organisation for the Exploitation of Meteorological Satellites, Japan Meteorological Agency, Canadian Space Agency, Australian Bureau of Meteorology, and regional entities like Meteorological Service Singapore. Collaborative agreements address calibration, validation, and product intercomparisons involving World Meteorological Organization infrastructure and joint initiatives with Group on Earth Observations. Cooperative research includes academic exchanges with University of Oxford, University of Tokyo, ETH Zurich, and operational interoperability collaborations with Korea Meteorological Administration and China Meteorological Administration under bilateral science working groups.

Category:Earth observation satellites Category:National Oceanic and Atmospheric Administration satellites Category:National Aeronautics and Space Administration programs