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 13:30 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
Launch 10 Nov 2022 EOL ≥2030
Last update: 2024-07-22
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
Earth observation MW frequencies
Service Sensing mode Frequency (GHz) Bandwidth (MHz) Polarisation Comments
ATMS passive 50.3 GHz 180 MHz - Window channels
ATMS passive 175 GHz - 191.46 GHz 0 MHz - Water vapour band
MATHS passive 53 GHz - 57.61 GHz 0 MHz - Temperature sounding
MATHS passive 53 GHz - 57.61 GHz 0 MHz - Temperature sounding channel