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ETALONNAGE ORBITE [1 record]

Record 1 2005-10-17

English

Subject field(s)
  • Spacecraft
CONT

In-orbit calibration requires having the knowledge to the requested accuracy of the following parameters at the time of radar sensing for a data take: Antenna Radiation Patterns [;] Antenna Pointing (i.e. the reference frame of the radiation pattern) [;] Absolute Gain (i.e. instrument and atmospheric effect) for absolute radiometry [;] Polarimetric characteristics (i.e. crosspolarisation and imbalance effects) [;] Variations of these parameters during the data taking [-] the short-term Instrument Stability Tracking. With the exception of the atmospheric effect on propagation loss and polarimetric imbalances, the rest of the parameters fall in the category of instrument calibration.

OBS

in-orbit calibration: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).

French

Domaine(s)
  • Engins spatiaux
CONT

Procédure d'étalonnage en orbite [...]

CONT

Utilisation d'un site en Antarctique pour l'étalonnage en orbite.

OBS

étalonnage en orbite : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).

Spanish

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