Abstract: | The Zenith Indicator Position navigation instrument is a device for instantaneously determining the latitude and longitude of a position on the surface of the earth with respect to the celestial sphere. The instrument operates on the fundamental principle that if the celestial coordinates of a position on the zenith are known, the corresponding terrestrial coordinates can be calculated by: |
Published in: | NAVIGATION: Journal of the Institute of Navigation, Volume 6, Number 2 |
Pages: | 128 - 129 |
Cite this article: | Bottoms, Lt. J. D., "THE ZENITH INDICATOR POSITION INSTRUMENT", NAVIGATION: Journal of The Institute of Navigation, Vol. 6, No. 2, 1958, pp. 128-129. |
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