Navigation of AVHRR images using ARGOS or TBUS bulletins

Abstract
An automatic AVHRR navigation method has been tested using ARGOS or TBUS orbital elements as input data. Satisfactory results have been obtained on 16 NOAA-9 and NOAA-10 orbits between 19 June 1988 and 26 September 1988: a mean error of 3·5km and a standard deviation of this error of 1·2km with ARGOS, a mean error of 2·3km and a standard deviation of 0·6km with TBUS. The positioning error consists of a pixelerror which is systematic for each satellite (−1·6 pixels for NOAA-9 and 2·0 pixels for NOAA-10) and a variable line error which is mainly due to the positioning error of the satellite on its trajectory.

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