A COMPUTATIONAL PROCEDURE FOR THE DETERMINATION OF THE OPTICAL AIR-MASS

AGUSTIN MUHLIA V., IGNACIO GALINDO E., LUIS LEMOYNE L.

Abstract


In this report a computation in Algol language for the optical air mass is presented. The method contains the reduction of the observation time, a daily correction for the solar declination and the trigonometric equation. By means of a modified Bemporad table with 900 entries the relative air mass is obtained. The running time for each observation is only 1/60".

The results show quantitatively the effects of the optical path length and the latitude. The error derived from the direct reading of the zenithal angle with the actinometer at the time of observation is also estimated here.


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DOI: http://dx.doi.org/10.22201/igeof.00167169p.1971.11.2.1040

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