Description
The MWTS-III has significant improvements in observation abilities and performance indicators
from MWTS-II. To fill the gap of temperature
sounding in the dawn and dusk time,
it has added 23.8 GHz and 31.4 GHz channels for cloud and precipitation detection, and 4 km and 6 km
temperature channels for more troposphere information.
| Satellite |
FY-3E
|
| No. Channels |
17 |
| Antenna main beam width |
2.2° @53.596GHz |
| Antenna main beam efficiency |
95% |
| Dynamic range |
3～340K |
| Sensitivity |
0.3～2.1K |
| Calibration accuracy |
0.8～1.2K |
Characteristics
| Band |
Centre frequency (GHz) |
3dB band width (MHz) |
Frequency stability (MHz) |
Polarization |
Minimum/expected sensitivity (K) |
Minimum/expected accuracy (K) |
| 1 |
23.8 |
270 |
±5/±10 |
QH |
0.4/0.3 |
1.2/0.8 |
| 2 |
31.4 |
180 |
±10 |
QH |
0.45/0.35 |
1.2/0.8 |
| 3 |
50.3 |
180 |
±5/±10 |
QV |
0.45/0.35 |
1.2/0.8 |
| 4 |
51.76 |
400 |
±3/±5 |
QV |
0.3/0.3 |
1.2/0.8 |
| 5 |
52.8 |
400 |
±3/±5 |
QV |
0.3/0.3 |
1.2/0.8 |
| 6 |
53.246±0.08 |
2×140 |
±5/±10 |
QV |
0.35/0.35 |
1.2/0.8 |
| 7 |
53.596±0.115 |
2×170 |
±2/±5 |
QV |
0.3/0.3 |
1.2/0.8 |
| 8 |
53.948±0.081 |
2×142 |
±5/±10 |
QV |
0.35/0.35 |
1.2/0.8 |
| 9 |
54.40 |
400 |
±2/±5 |
QV |
0.3/0.3 |
1.2/0.8 |
| 10 |
54.94 |
400 |
±2/±5 |
QV |
0.3/0.3 |
1.2/0.8 |
| 11 |
55.50 |
330 |
±2/±5 |
QV |
0.3/0.3 |
1.2/0.8 |
| 12 |
57.290344(fo) |
2330 |
±0.5 |
QV |
0.7/0.6 |
1.5/1.2 |
| 13 |
fo±0.217 |
2×78 |
±0.5 |
QV |
0.9/0.7 |
1.5/1.2 |
| 14 |
fo±0.3222±0.048 |
4×36 |
±1.2 |
QV |
0.9/0.8 |
1.5/1.2 |
| 15 |
fo±0.3222±0.022 |
4×16 |
±1.2/±1.6 |
QV |
1.3/1.0 |
1.5/1.2 |
| 16 |
fo±0.3222±0.010 |
4×8 |
±0.5 |
QV |
1.6/1.2 |
1.5/1.2 |
| 17 |
fo±0.3222±0.0045 |
4×3 |
±0.2/±0.5 |
QV |
2.8/2.1 |
2.5/1.5 |
Data and Products
Calibration and Validation
MWTS-III calibration and validation
FY-3F MWTS-III SNR (ZIP)
FY-3E MWTS-III FNR (ZIP)
