Name

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      SUN_ZD

Purpose

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      Return solar zenith distances for given position.

Category

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Calling Sequence

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      zd = sun_zd(lng, lat, t1, t2)

Inputs

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      lng = Longitude of position (west<0). in
      lat = Latitude of position. in
      t1 = start time. in
      t2 = end time (def=t1+1 day). in
        Times may be Julian Seconds or Date/Time string.

Keyword Parameters

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Keywords

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        ZONE=hrs Hours ahead of GMT (def=0). Ex: zone=-4 for EDT.
        NUMBER=n Specified number of output values (def=25).
        TIME=t Returned time (JS) for each ZD.
        AZIMUTH=azi Returned azimuths for each time.

Outputs

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      zd = returned solar zenith distances in degrees. out

Common Blocks

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Notes

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Modification History

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      R. Sterner, 1996 Sep 15
      R. Sterner, 1998 Jan 19 --- Renamed sunpos to sunaltazi.
  Copyright (C) 1996, Johns Hopkins University/Applied Physics Laboratory
  This software may be used, copied, or redistributed as long as it is not
  sold and this copyright notice is reproduced on each copy made. This
  routine is provided as is without any express or implied warranties
  whatsoever. Other limitations apply as described in the file disclaimer.txt.