The earth is constantly being monitored by a great number satellites operating in the earth exploration-satellite service (EESS) or space research service (SRS). These artificial satellites have onboard space radio stations from which they gather data. The data is transmitted back to earth via feeder links. This article lists a number of current active Earth observation satellites and their downlink transmission frequencies.
Satellite | Frequency | Band | ||||
---|---|---|---|---|---|---|
Terra | 8212.5 MHz | 8175-8215 MHz | METEOROLOGICAL-SATELLITE SERVICE Earth exploration-satellite service | |||
Aqua | 8160 MHz | 8025-8175 MHz | Earth exploration-satellite service | |||
NOAA 17,18 | 1707 MHz | 1700-1710 MHz | Meteorological-satellite service | |||
ERS-2 (High rate) | 8140 MHz | 8025-8175 MHz | Earth exploration-satellite service | |||
SPOT 4,5 | 8253 MHz | 8215-8400 MHz | Earth exploration-satellite service | |||
EROS A1 | 8150 MHz | 8025-8175 MHz | Earth exploration-satellite service | |||
8250 MHz | 8215-8400 MHz | |||||
Landsat 5, 7 | 8212.5 MHz | 8175-8215 MHz | Earth exploration-satellite service | |||
CBERS 2B | 8103 MHz | 8025-8175 MHz | Earth exploration-satellite service | |||
8212 MHz | 8175-8215 MHz | METEOROLOGICAL-SATELLITE SERVICE Earth exploration-satellite service |
0 | 8321 MHz | 8215-8400 MHz | Earth exploration-satellite service |
SAC-C | 0 MHz | 0-12 MHz | Earth exploration-satellite service |