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Instrument: SSM/T-2
Instrument details
Acronym
SSM/T-2
Full name
Special Sensor Microwave - Humidity
Purpose
Humidity sounding in nearly-all-weather conditions
Short description
5 channels MW radiometer covering the 183 GHz band [see detailed characteristics below]
Background
New development
Scanning Technique
Cross-track: 28 steps of 42 km ssp, swath 1500 km - Along-track: one 48-km line each 8 s
Resolution
48 km st s.s.p.
Coverage / Cycle
Global coverage once/day
Mass
13.6 kg
Power
26 W
Data Rate
320 bps
Providing Agency
DoD
Instrument Maturity
Flown on operational programme
Utilization Period:
1992 to 2000-08-07
Last update:
2019-11-14
Detailed characteristics
No.
Central frequency (GHz)
Bandwidth (MHz)
Polarisation
NEΔT
4
91.655 ± 1.250
3000
H
0.6 K
5
150.0 ± 1.250
1500
H
0.6 K
3
183.31 ± 7.0
500
H
0.6 K
1
183.31 ± 3.0
1000
H
0.6 K
2
183.31 ± 1.0
1500
H
0.8 K
Satellites this instrument is flying on
Note: a red tag indicates satellites no longer operational, a
green tag indicates operational satellites, a blue tag indicates
future satellites
Instrument classification
Earth observation instrument Passive microwave radiometer Cross-track, special or non-scanning microwave radiometer
WIGOS Subcomponents
No WIGOS subcomponents have been defined.
Mission objectives
Primary mission objectives
Secondary mission objectives Cloud ice Total Column Cloud liquid water (CLW) total column Integrated Water Vapour (IWV) Precipitation intensity at surface (liquid or solid)
Opportunity objectives Cloud drop effective radius Cloud ice Cloud ice effective radius Cloud liquid water (CLW) Downward long-wave irradiance at Earth surface Upward long-wave irradiance at Earth surface Show all Show fewer
Tentative Evaluation of Measurements
The following list indicates which measurements can typically be
retrieved from this category of instrument. To see a full Gap Analysis by Variable,
click on the respective variable.
Note: table can be sorted by clicking on the column headers