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Portable Network Graphic  |  1996-01-05  |  14.8 KB  |  331x254  |  16-bit (457 colors)
   ocr: odeling. October 1980 ssue of Tou use, enter the values of baselne length, elevation, and azimuth angles in the appropriate text fields. (As in other dialog boxes, press the <tab> key as a short-cut for jumping between fields.) Press the >>Compute>> button to display the results. Angles should be entered in degrees. The units in which the baselne is entered Wi be the units of the calculated altitude. Track closure is girven as percent of altitude, and is a measure of the consistency of the given sight ines.