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Advanced Microwave Sounding Unit A (AMSU/A)

NSSDCA ID: 2000-055A-03

Mission Name: NOAA 16

Description

The Advanced Microwave Sounding Unit (AMSU) was a new instrument on the Advanced TIROS-N (ATN) NOAA K-N series of operational meteorological satellites. The AMSU consisted of two functionally independent units, AMSU-A and AMSU-B. The AMSU-A was a line-scan instrument designed to measure scene radiance in 15 channels, ranging from 23.8 to 89 GHz, to derive atmospheric temperature profiles from the Earth's surface to about 3 millibar pressure height. The instrument was a total power system having a field-of-view of 3.3 degrees at half-power points. The antenna provided cross track scan 50 degrees on either side of the orbital track at nadir with a total of 30 IFOVs per scan line. The AMSU-A was calibrated on-board using a blackbody and space as references. The AMSU-A was physically divided into two separate modules which interface independently with the spacecraft. The AMSU-A1 contained all of the 5 mm oxygen channels (channels 3-14) and the 80 GHz channel. The AMSU-A2 module consisted of two low-frequency channels (channels 1 and 2). The 15 channels had a center frequency(GHz) at: 23.8, 31.4, 50.3, 52.8, 53.6, 54.4, 54.94, 55.5, six at 57.29, and 89.

Alternate Names

  • AMSU/A
  • NOAA16/AMSU/A

Facts in Brief

Mass: 101 kg
Power (avg): 130.7 W
Bit rate (avg): 16.64 kbps

Funding Agency

  • NOAA National Environmental Satellite Service (United States)

Discipline

  • Earth Science: Atmospheric Dynamics

Additional Information

Questions and comments about this experiment can be directed to: Coordinated Request and User Support Office

 

Personnel

NameRoleOriginal AffiliationE-mail
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