BackForward Satellite: SNPP 

Satellite details
Acronym SNPP
Full name Suomi National Polar-orbiting Partnership
Satellite Description
  • Prototype of the JPSS programme, originally designed as Preparatory Programme of the aborted NPOESS (National Polar-orbiting Operational Environmental Satellite System).
  • Main mission: operational meteorology.
  • Substantial contribution to atmospheric chemistry and climatology.
Mass at launch 2128 kg Dry mass 1400 kg
Power 2285 W
Data access link
Data access information
Orbit Sunsynchronous orbit Altitude 833 km
ECT 13:25 asc


Space agency NOAANASA
Status Operational
Details on Status
(as available)
  • Secondary PM satellite.
Launch 28 Oct 2011 EOL ≥2023
Last update: 2021-12-01
Associated satellite programme and related satellites

Note: red tag: no longer operational , green tag: operational , blue tag : future

Satellite Payload

All known Instruments flying on SNPP

Acronym Full name
ATMS Advanced Technology Microwave Sounder
CERES Clouds and the Earth’s Radiant Energy System
CrIS Cross-track Infrared Sounder
OMPS-limb Ozone Mapping and Profiler Suite
OMPS-nadir Ozone Mapping and Profiler Suite
VIIRS Visible/Infrared Imager Radiometer Suite
Show instrument status and calibration
Telecommunication frequency or microwave sensing channel information Show expert details
Service Dir or Mode Frequency Emission designator Bandwidth Polarisation D/A Data rate or Baseband Comments
SMD S-E 8212.5 MHz 300MG7D 300000  kHz RHCP D 262000  kbps Stored Mission Data
HRD S-E 7812 MHz 30M0G7D 30000  kHz RHCP D 13000  kbps Real-time High Rate Data
TDRSS S-S 2067.27 MHz 6M04G7DDC 6000  kHz RHCP D   Trasmission to TDRSS
TDRSS S-S 2247.5 MHz 6M04G7D 6040  kHz RHCP D 32.8  kbps Return from TDRSS
Command E-S 2067.3 MHz 4K00G7D 4  kHz RHCP D 2  kbps Commands
Command E-S 2067.3 MHz 256KG7D 256  kHz RHCP D 128  kbps Commands (memory load)
TT & C S-E 2247.5 MHz 6M04G7D 6040  kHz RHCP D 1049  kbps Telemetry and commands
GPS S-S 1227.6 MHz 24M0G1D 24000  kHz RHCP D 0.05  kbps GPS reception at SNPP
GPS S-S 1575.42 MHz 24M0G1D 24000  kHz RHCP D 0.05  kbps GPS reception at SNPP
ATMS passive 23800 MHz 270000  kHz QV A   Water vapour channel
ATMS passive 31400 MHz 180000  kHz QV A   Window channel
ATMS passive 50299 - 57660 MHz N/R  kHz QH A   Oxygen band, 13 channels
ATMS passive 89500 MHz 5000000  kHz QV A   Window channel
ATMS passive 165500 MHz 3000000  kHz QH A   Weak water vapour channel
ATMS passive 175310 - 191310 MHz N/R  kHz QH A   Water vapour band, 5 channels