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No astrometry

If there is insufficient astrometry in the current datafile or the first file to calculate the offsets then the user is prompted for them. The XOFFSET required is the number of pixels between the left hand edge of the second data array and that of the first. If the second array will be to the right of the image then XOFFSET will be positive. Similarly YOFFSET is the distance between the bottom of the second image and that of the first. If the second array will be above the first then YOFFSET will be positive.

Note: In this case the program assumes that the input arrays have the same intrinsic pixel size and the same orientation to North.



Next: Method Up: IMOSAIC Prev: Direction of X-axis