Trigonometric Criteria for Determining Whether Meteoritic Falls Lie on the Same Great Circle*
Frederick Charles Leonard · Contributions of the Meteoritical Society · 1950
Abstract This paper is divided into 6 sections, of which an enumeration will constitute its abstract: (1) introduction; (2) trigonometric criteria for determining whether a given point Q lies on the great circle passing thru 2 other given points, A and B, of north pole P; (3) and (4) methods of determining the geographic coördinates of pole P; (5) determination of the distance of a given point R from the great circle; and (6) determination of the coördinates of point S, the point on the great circle closest to the given point R. Several subtopics are discussed in the notes to the paper.