Skip to main content

Joint Polar Satellite System

NOAA’s Joint Polar Satellite System (JPSS) provides global observations that serve as the backbone of both short- and long-term forecasts, including those that help us predict and prepare for severe weather events. The five satellites scheduled in the fleet are the currently-flying NOAA/NASA Suomi National Polar-orbiting Partnership (Suomi NPP) satellite, NOAA-20, previously known as JPSS-1, and the upcoming JPSS-2, JPSS-3 and JPSS-4 satellites.

Each satellite carries at least four state-of-the-art instruments, including the Advanced Technology Microwave Sounder (ATMS), the Cross-Track Infrared Sounder (CrIS), the Visible Infrared Imaging Radiometer Suite (VIIRS), the Ozone Mapping and Profiler Suite (OMPS). Some of the satellites, like NOAA-20 and JPSS-3, carry an instrument to measure the Earth’s energy budget.

JPSS satellites circle the Earth from pole to pole and cross the equator about 14 times daily in the afternoon orbit to provide full global coverage twice a day. In doing so, they provide the majority of data that informs numerical weather forecasting in the U.S. and deliver critical observations during severe weather events like hurricanes and blizzards.

Beyond forecasting, JPSS satellites also play a critical role in detecting and monitoring environmental hazards, such as droughts, forest fires, poor air quality and harmful coastal waters--observations they will provide on a continuous basis through 2038.

NOAA, an agency within the U.S. Department of Commerce, works in partnership with NASA on all JPSS missions, ensuring a continuous series of global weather data to secure a more "Weather-Ready” Nation.

 

Collage of weather images
Proving Grounds
The initiatives comprise a team of developers and users working together to improve an application in a testbed environment.
Be part of the community
Image of satellite receivers in the north pole
Ground Segment
Satellites download their data to ground receivers as they pass over stations in the Arctic and Antarctic.
Read about Ground Systems
Illustration of city skyline in silhouette
In Your Community
Besides providing weather forecasts, JPSS benefits everyone in all 50 states through research opportunities, partnerships, education, and more.
Find out how!

 

JPSS-1/NOAA-20's Orbit

 

Resources & More

Satellite Instruments
Instruments and more
Videos & Images
View media
Educational Resources
JPSS in Education
Workshops and Events
See the workshops
Science Training Resources
How to use the data

 

JPSS News