Solar Geom Calc

Solar Geometry Calculator
Latitude:	Longitude:	UTC Start Date:	UTC End Date:	Local Time Zone:	Interval (secs):

Local Date Format: Show GMT: Airmass: Solar Zenith Angle: Elevation: Azimuth:

Local Etc/GMT
yyyy MM dd HH mm ss      AirMass   SolarZen       Elev       Azim
2022 06 28 12 00 00     12.88937   86.23924    3.76076   62.32495
2022 06 28 13 00 00      4.02540   75.83355   14.16645   71.29520
2022 06 28 14 00 00      2.33394   64.74435   25.25565   79.94812
2022 06 28 15 00 00      1.67165   53.33566   36.66434   88.95588
2022 06 28 16 00 00      1.34217   41.89849   48.10151   99.39570
2022 06 28 17 00 00      1.16452   30.88736   59.11264  113.49258
2022 06 28 18 00 00      1.07374   21.42565   68.57435  136.66948
2022 06 28 19 00 00      1.04395   16.76299   73.23701  177.32763
2022 06 28 20 00 00      1.06766   20.57708   69.42292  219.74025
2022 06 28 21 00 00      1.15081   29.72380   60.27620  244.50502
2022 06 28 22 00 00      1.31663   40.64104   49.35896  259.25416
2022 06 28 23 00 00      1.62375   52.06092   37.93908  269.95654
2022 06 29 00 00 00      2.23200   63.49096   26.50904  279.05752
2022 06 29 01 00 00      3.72648   74.63315   15.36685  287.71104
2022 06 29 02 00 00     10.57388   85.15470    4.84530  296.61683
2022 06 29 03 00 00     -1.00000   95.12322   -5.12322  306.31159
2022 06 29 04 00 00     -1.00000  103.69514  -13.69514  317.25441
2022 06 29 05 00 00     -1.00000  110.53728  -20.53728  329.77723
2022 06 29 06 00 00     -1.00000  115.06907  -25.06907  343.90104
2022 06 29 07 00 00     -1.00000  116.77390  -26.77390  359.11057
2022 06 29 08 00 00     -1.00000  115.42154  -25.42154   14.38690
2022 06 29 09 00 00     -1.00000  111.19640  -21.19640   28.67641
2022 06 29 10 00 00     -1.00000  104.59340  -14.59340   41.39488
2022 06 29 11 00 00     -1.00000   96.19531   -6.19531   52.51088
2022 06 29 12 00 00     13.06196   86.30579    3.69421   62.33217

Latitude:

-90.0 to +90.0, Negative for South, Positive for North.

Longitude:

-180.0 to +180.0, Negative for East, Positive for West.

Start Date:

Enter start date in the format yyyy-MM-dd HH:mm [UTC]

End Date:

Enter end date in the format yyyy-MM-dd HH:mm [UTC]

Interval:

The internal (in seconds) between successive solar calculations.

Date Format:

yy[yy] Format for years. Two or four digits.
M[MM] Format for months. MM=01-12, MMM=Jan-Dec, MMMM=January-December
d[d] Format for day of month. One or Two digits.
D[DD] Format for day-of-year. One to three digits (zero padded).
HH[or hh] Format for hour-of-day. HH=24 hr clock, hh=12 hr clock.
mm Format for minutes. mm=00-59.
ss Format for seconds. ss=00=59.
a AM/PM.
z Timezone Acronym.
Z Timezone hours offset. Examples: +0600, -0200

Examples:
yyyy/MM-dd_DDD hh:mm:ss aa
yyyyMMdd[DDD]HHmmss

Air mass

If the sun is below the horizon, Air mass = -1.0000. Toggle the checkbox to enable/disable column in report.

Air mass Calculation

Airmass = 1.0/(cos(90 - elev) + 0.50572 * (6.07995 + elev)^-1.6364)

Solar Zenith Angle

Solar elevation in Degrees from zenith (90°). Angles are corrected for atmospheric diffraction. Toggle the checkbox to enable/disable column in report.

Elevation:

Solar elevation in Degrees above horizon (0 degrees). Angles are corrected for atmospheric diffraction. Toggle the checkbox to enable/disable column in report.

Azimuth:

Sun azimuth, 0° = N, 90° = E, 180° = S, 270° = W. Toggle the checkbox to enable/disable column in report.

Solar Geometry Calculator