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
2023 11 28 02 00 00     -1.00000  117.01687  -27.01687  264.10480
2023 11 28 03 00 00     -1.00000  128.49332  -38.49332  273.62259
2023 11 28 04 00 00     -1.00000  139.82162  -49.82162  285.10512
2023 11 28 05 00 00     -1.00000  150.39633  -60.39633  301.27118
2023 11 28 06 00 00     -1.00000  158.67347  -68.67347  327.97787
2023 11 28 07 00 00     -1.00000  161.08509  -71.08509    8.81182
2023 11 28 08 00 00     -1.00000  155.77226  -65.77226   44.72032
2023 11 28 09 00 00     -1.00000  146.26509  -56.26509   66.20742
2023 11 28 10 00 00     -1.00000  135.28081  -45.28081   79.98940
2023 11 28 11 00 00     -1.00000  123.84996  -33.84996   90.46098
2023 11 28 12 00 00     -1.00000  112.42360  -22.42360   99.59988
2023 11 28 13 00 00     -1.00000  101.29283  -11.29283  108.43295
2023 11 28 14 00 00     37.57935   89.97702    0.02298  117.63597
2023 11 28 15 00 00      6.14248   80.97579    9.02421  127.75850
2023 11 28 16 00 00      3.32880   72.69249   17.30751  139.27865
2023 11 28 17 00 00      2.47215   66.26217   23.73783  152.51501
2023 11 28 18 00 00      2.14575   62.32591   27.67409  167.38967
2023 11 28 19 00 00      2.08160   61.38815   28.61185  183.19501
2023 11 28 20 00 00      2.23939   63.58617   26.41383  198.74742
2023 11 28 21 00 00      2.72508   68.60927   21.39073  213.00069
2023 11 28 22 00 00      4.03574   75.87183   14.12817  225.51526
2023 11 28 23 00 00      9.83148   84.70693    5.29307  236.40904
2023 11 29 00 00 00     -1.00000   94.93676   -4.93676  246.08533
2023 11 29 01 00 00     -1.00000  105.76626  -15.76626  255.05194
2023 11 29 02 00 00     -1.00000  117.05323  -27.05323  263.89280

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