News


National Polar-orbiting Operational Environmental Satellite System (NPOESS) (U)

Overview (U):

(U) NPOESS will combine the follow-on to the DoD's Defense Meteorological Satellite Program (DMSP) and the NASA/NOAA Polar-orbiting Operational Environmental Satellite (POES) program. The NPOESS program will provide operational military commanders and civilian leaders timely, quality weather information to effectively employ weapon systems and protect national resources. At least three satellites will be required in sun synchronous 450 nm polar orbit at all times. This program will be the nation's single source of global weather data for operational DoD and DOC use.

Details (U):

Description User Impact Programmatics Images
Related Initiatives Related Requirements Related Categories Road Map Placements
Additional Hotlinks Lead Office POC  


Description (U):

(U) NPOESS will provide operational military commanders and civilian leaders timely, quality weather information to effectively employ weapon systems and protect national resources. NPOESS is the full convergence of DMSP and POES into a single, national environmental sensing satellite system to provide visible and infrared cloud cover imagery and other meteorological, oceanographic, and solar-geophysical information. This includes not only single site ground control from the Suitland Satellite Operation Control Center (SOCC), but a single bus with sensors designed to meet joint DoD and NOAA requirements.

(U) At least three satellites will be required in sun synchronous 450 nm polar orbit at all times (sun synchronous means the satellites cross the equator at the same local sun time on each of their 14 orbits/day). Current CONOPS call for the satellites to be operated at altitudes between 750 and 1200 km and nominal nodal crossing times of 0530, 0930, and 1330 local sun time.

(U) Three sensor suites are currently under consideration for NPOESS: a multispectral imager suite (to provide visual and IR imagery at a minimum of seven bands mainly for clouds, surface, and ocean measurements), a microwave imager/profiler suite (to provide wind, temperature, and moisture profiles), and a space environment sensor suite (to measure parameters such as electron density profiles, precipitating auroral particles, and geomagnetic field). One of the satellites in the NPOESS constellation will be a European METOP, which will carry U.S. sensors.

(U) The multispectral imager (MSI) is a key sensor on NPOESS and will improve the measurement capability for fog/low cloud/high cloud discrimination as well as for detecting standing surface water and vegetation types. It is possible that commercial multispectral imager systems used for earth resources monitoring, such as LANDSAT or SPOT, could supplement NPOESS data; the drawback is that these images are usually not available for days to weeks after they're initially obtained. This wouldn't meet warfighter requirements. It may also be possible to utilize IR imagery obtained from other DoD sources, if weather personnel could obtain it in a timely manner and if it provided useful information.

User Impact (U):

(U) To be supplied.

Programmatics (U):

(U) Programmed.

Images (U):

(U) None.

Related Initiatives (U):
NameTitle
DMSPDefense Meteorological Satellite Program (DMSP)
Improved Spectral ImagerImproved Spectral Imager
NEMSSNational Environmental Monitoring Satellite System (NEMSS)
POESPolar-orbiting Operational Environmental Satellite (POES)
Titan IITitan II
Western RangeWestern Range
This Table Is Unclassified.

Related Requirements (U):None.

Related Categories (U):
NameTitle
EnvironmentalDOD Space Environmental Programs
Space SystemsSpace Systems
This Table Is Unclassified.

Road Map Placements (U):

NameTitle
ENVIRONMENTAL MONITORINGSPACE FORCE ENHANCEMENT: ENVIRONMENTAL MONITORING
Major DoD Space ProgramsEvolution of the Selected Space Programs
National Security Space Road MapIntegrated System Road Map
This Table Is Unclassified.

Requirements, Funding and Additional Hotlinks (U):

Name
RDT&E Budget Item Project 4056
Sattelite Control ORD (95)
1997 Satellite Ops Dev Plan
This Table Is Unclassified.

Lead Office (U):

(U) DoD.

(U) Service Staff: SAF/AQS, Pentagon, Washington, DC
(U) Major Command: HQ AFSPC/DR, Peterson AFB, CO
(U) Program Management: Department of Commerce, Silver Springs, MD

Point of Contact (U):

(U) Maj Mike LaPointe, NSSA, Open Phone: (703) 325-6422, DSN 221-6422.
(U) National Security Space Road Map Team, NSSA, Open Phone: (703)808-6040, DSN 898-6040.

Date Of Information (U):

(U) 07 August 1997





(U) Road Map Production Date: 12 July 1999