| Identifier: | DORIS > Doppler Orbitography and Radiopositioning Integrated by Satellite |
|---|---|
| Docucomp UUID: | 8293FAD4B8DD75F2E040AC8C5AB4576F |
| Instrument / Gear: | Instrument |
| Instrument Type: | positioning/navigation |
| Description: |
Instrument Type: positioning/navigation, Operational Mode: , Collection Type: radio, Other Information: DORIS is based on the accurate measurement of the Doppler shift of radiofrequency signals transmitted from ground-based beacons and received onboard the spacecraft when it passes over. Measurements are made at two frequencies: 2.03625 GHz for precise Doppler measurement and 401.25 MHz for ionospheric correction. The 401.25 MHz measurement is also used for time tagging and auxiliary data. |
| Record Created: | April 10, 2018 2:05 PM UTC by edmjira.inport@noaa.gov |
| Record Last Modified: | April 10, 2018 2:05 PM UTC by edmjira.inport@noaa.gov |
