INTEGRAL timing and localization performance
Walter, R.; Schmidt, M.; Kuiper, L.; Hermsen, W.; Courvoisier, T. J. -L.; Domingo, A.; Skinner, G.; Favre, P.; Dubath, P.; Gienger, G.; Pineiro, J.; Tuttlebee, M.; Ziegler, G.
Switzerland, Spain, Germany, Netherlands, France
Abstract
In this letter we report on the accuracy of the attitude, misalignment, orbit and time correlation which are used to perform scientific analyses of the INTEGRAL data. The boresight attitude during science pointings has an accuracy of 3 arcsec. At the center of the field, the misalignments have been calibrated leading to a location accuracy of 4 to 40 arcsec for the different instruments. The spacecraft position is known within 10 m. The relative timing between instruments could be reconstructed within 10 mus and the absolute timing within 40 mus .