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| | | | | | | AMSU-A2 channels
The Advanced Microwave Sounding Unit (AMSU-A2) consists of the lowest frequencies of the AMSU-A system (K band channel 1 and Ka band channel 2), and the associated scanning, calibration, processing, and power control hardware and circuitry.
At each channel frequency, the antenna beamwidth is a constant 3.33° ± 10% (circular, at half power point). Thirty contiguous resolution scenes are sampled in a stepped-scan fashion every eight seconds.
AMSU-A2 radiometer characteristics are illustrated in the table below:
| | Centre frequency (MHz) | Bandwidth (MHz) | Centre frequency stability (MHz) | | 1 | 23800
(2 pass-band) | 270 | ± 10.0 | | 2 | 31400
(2 pass-band) | 180 | ± 10.0 |
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| | Temperature sensitivity
NEDT (K) | Calibration Accuracy (K) | Polarization | -3 dB Stop Band (SB) fc ± SB (MHz) | | 1 | 0.3 | 2.0 | V | 10.0 | | 2 | 0.3 | 2.0 | V | 10.0 |
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V : Polarization vector is parallel to scan plane at nadir
Last update: 28 June 2006 | |
| | In depth About AMSU-A2ComponentsProductsMetOp's instruments A/DCSAMSU-A1AMSU-A2ASCATAVHRRGOME-2GRASHIRSIASIMHSSARP-3SARRSEM
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