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Figure1-theodolite.jpg
Figure 1: Theodolite photo of the building housing Washington Apple Pi’s corporate offices. Overprinted information includes the date and time, a position of 39.0539ºN and -077.1067ºE, with an altitude of 384 feet. The photo was taking with a bearing of 292.3º, an elevation angle of +0.7º, and a horizontal angle of +02.1º. Compare the imprinted information with that in Figure 3. (Photo by Lawrence I. Charters)
