MiRS Sensors
TRMM TMI Overview
photo: TRMM satellite
Satellite(s)
Tropical Rainfall Measurement Mission (TRMM) - launched 1997, reached end of mission in 2014
MiRS Production Status
Operational until end of mission.
| Channel Number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|
| Central freq (GHz) | 10.65 | 10.65 | 19.35 | 19.35 | 21.3 | 37.0 | 37.0 | 85.5 | 85.5 |
| Polarization | V | H | V | H | V | V | H | V | H |
| Bandwidth (MHz) | 100 | 100 | 500 | 500 | 200 | 2000 | 2000 | 3000 | 3000 |
| Stability (MHz) | 10 | 10 | 20 | 20 | 20 | 50 | 50 | 100 | 100 |
| Beamwidth (deg) | 3.68 | 3.75 | 1.90 | 1.88 | 1.70 | 1.0 | 1.0 | 0.42 | 0.23 |
| IFOV Along-Track (km) | 59.0 | 60.1 | 30.5 | 30.1 | 27.2 | 16.0 | 16.0 | 6.7 | 6.9 |
| IFOV Cross-Track (km) | 35.7 | 36.4 | 18.4 | 18.2 | 16.5 | 9.7 | 9.7 | 4.1 | 4.2 |
| Integration time per sample (ms) |
6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 3.3 | 3.3 |
| EFOV Along-Track (km) | 63.2 | 63.2 | 30.4 | 30.4 | 22.6 | 16.0 | 16.0 | 7.2 | 7.2 |
| EFOV Cross-Track (km) | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 9.1 | 4.6 | 4.6 |
| EFOVs per scan | 104 | 104 | 104 | 104 | 104 | 104 | 104 | 208 | 208 |
| Samples (N) per beamwidth |
4 | 4 | 2 | 2 | 2 | 1 | 1 | 1 | 1 |
| Beam EFOV ( km x km ) | 63 x 63 | 63 x 63 | 30 x 30 | 30 x 30 | 23 x 23 | 16 x 9 | 16 x 9 | 7 x 5 | 7 x 5 |
| Beam EFOVs per scan | 26 | 26 | 52 | 52 | 52 | 104 | 104 | 208 | 208 |
| NEdT (K) | 0.63 | 0.54 | 0.50 | 0.47 | 0.71 | 0.36 | 0.31 | 0.52 | 0.93 |
Source: TRMM official site
