Research Article
Comparisons of Brightness Temperatures of Landsat-7/ETM+ and Terra/MODIS around Hotien Oasis in the Taklimakan Desert
Table 1
Satellite specification of Landsat-7 and Terra.
| Satellite | Sensor | Launch date | Altitude (km) | Inclination (degrees) | Swath (km) | Repeat cycle (days) | Crossing time (UTC) |
| Landsat-7 | ETM+ | April 15, 1999 | 705 | 98.2 | 185 | 16 | 10:00–10:15 (Descending node) |
| Terra | MODIS | December 18, 1999 | 705 | 98.2 | 2330 | 1-2 | 10:30 (Descending node) |
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