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6.1.3 SWP ITF

At the time of construction of the SWP ITF for use in the Final Archive, two ITF series had been acquired for that camera. The images that comprise the ITF acquired in 1978 were not acquired under stable spacecraft conditions and are geometrically dissimilar to each other. These images cannot be used to construct a raw space ITF, which requires minimal distortion among the images. The images acquired for the 1985 ITF comprise a geometrically homogeneous group. Therefore, the images acquired for the 1985 ITF were used to construct the raw space ITF for the Final Archive processing. In 1992, a new ITF for the SWP camera was acquired, but there are no current plans for use of this ITF in the Final Archive processing.

Karen Levay