BackForward Satellite: NOAA-21 

Satellite details
Acronym NOAA-21
Full name National Oceanic and Atmospheric Administration - 21
WIGOS Station Identifier ---
Satellite Description
  • 2nd flight unit of JPSS which became NOAA-21
  • Main mission: operational meteorology.
  • Substantial contribution to atmospheric chemistry and climatology.
Mass at launch 2540 kg Dry mass
Power 1932 W
Data access link https://data.noaa.gov/onestop/collections?q=Noaa-21
Data access information

Real-time availability of ATMS, CrIS, OMPS-nadir, VIIRS by HRD.
Orbit Sunsynchronous orbit Altitude 824 km
ECT 13:25 asc

 

Space agency NOAA , NASA
Status Operational
Details on Status
(as available)
  • More details on NOAA-21 instruments including spectral responses for ATMS are here.
  • The measured spectral responses for NOAA-21 ATMS are here.
  • JPSS-2 became NOAA-21 in early 2023.
  • NOAA-21 became the primary afternoon satellite from 20 March 2024
  • Satellite and instrument statusĀ here
Launch 10 Nov 2022 EOL ≥2030
Last update: 2024-10-31
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 NOAA-21

Acronym Full name
ATMS Advanced Technology Microwave Sounder
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
Satellite frequencies for Earth Observation, data transfer and platform communications and control
Frequencies for satellite management
Service Direction Frequency (MHz) Emission designator Bandwidth (kHz) Polarisation D/A Data rate (kbps) or Baseband (kHz) Comments
TDRSS S-S 2067.22 MHz - 2067.32 MHz 6M04G1D 6040 kHz RHCP D 1  kbps Transmission to TDRSS
TDRSS S-S 2247.45 MHz - 2247.55 MHz 6M04G1D 6040 kHz RHCP D 16.384   kbps Transmission from TDRSS
Command E-S 2067.22 MHz - 2067.32 MHz 4K00G1D 4 kHz RHCP D 2   kbps Commands
Command E-S 2067.22 MHz - 2067.32 MHz 256KG1D 256 kHz RHCP D 128  kbps Commands
TT & C S-E 2247.45 MHz - 2247.55 MHz 65K5G1D 3200 kHz RHCP D 32.768   kbps Telemetry and command
TT & C S-E 2247.45 MHz - 2247.55 MHz 6M04G1D 6040 kHz RHCP D 32.768   kbps Telemetry and command
GPS S-S 1227.55 MHz - 1227.65 MHz 24M0G1D 24000 kHz RHCP D 0.05  kbps GPS reception at JPSS
GPS S-S 1575.37 MHz - 1575.47 MHz 24M0G1D 24000 kHz RHCP D 0.05  kbps GPS reception at JPSS
Earth observation MW frequencies
Service Sensing mode Frequency (GHz) Bandwidth (MHz) Polarisation Comments
ATMS passive 50.3 GHz 180 MHz QH Window channels
ATMS passive 175 GHz - 191.46 GHz 0 MHz QH Water vapour band
ATMS passive 31.4 GHz 180 MHz QV Window channel
ATMS passive 23.8 GHz 280 MHz QV Water vapour channel
ATMS passive 88.2 GHz 2000 MHz QV Window channel
ATMS passive 165.5 GHz 3000 MHz QH Water vapour channel
ATMS passive 53 GHz - 57.61 GHz 0 MHz QH Oxygen band for temperature sounding
Frequencies for scientific data acquisition and communication services at ground stations
Service Direction Frequency (MHz) Bandwidth (kHz) Polarisation D/A Data rate (kbps) or Baseband (kHz) Comments
SMD S-E 26553.4 MHz - 26853.4 MHz - RHCP D 261000  kbps Stored Mission Data (info data rate)
SMD S-E 26628.4 MHz - 26778.4 MHz - RHCP D 131000  kbps Stored Mission Data (info data rate)
HRD S-E 7787 MHz - 7837 MHz - RHCP D 21800  kbps Real-time High Rate Data