Position of comet P/Halley at the Giotto encounter
Wilhelm, K.; Keller, H. U.; Curdt, W.; Craubner, A.; Krahn, E.
Germany
Abstract
Images of the Halley Multicolor Camera (HMC) were analyzed to evaluate the fly-by geometry of the Giotto spacecraft past Comet Halley. The position of the comet at closest approach was determined with respect to the spacecraft. Based on the orbit information of Giotto the absolute position of the cometary nucleus could be obtained with very high precision.