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 01 19 07 00 00     -1.00000  160.18836  -70.18836  352.61532
2022 01 19 08 00 00     -1.00000  157.66134  -67.66134   31.80831
2022 01 19 09 00 00     -1.00000  149.46082  -59.46082   57.93443
2022 01 19 10 00 00     -1.00000  138.94881  -48.94881   74.08980
2022 01 19 11 00 00     -1.00000  127.64489  -37.64489   85.65946
2022 01 19 12 00 00     -1.00000  116.16549  -26.16549   95.26528
2022 01 19 13 00 00     -1.00000  104.84944  -14.84944  104.20179
2022 01 19 14 00 00     -1.00000   93.97281   -3.97281  113.25430
2022 01 19 15 00 00      8.48319   83.70562    6.29438  123.02370
2022 01 19 16 00 00      3.76237   74.78758   15.21242  134.03973
2022 01 19 17 00 00      2.59521   67.46581   22.53419  146.73104
2022 01 19 18 00 00      2.15199   62.41375   27.58625  161.23137
2022 01 19 19 00 00      2.00870   60.23869   29.76131  177.08152
2022 01 19 20 00 00      2.07311   61.25901   28.74099  193.17254
2022 01 19 21 00 00      2.38435   65.32037   24.67963  208.26069
2022 01 19 22 00 00      3.18870   71.88923   18.11077  221.62771
2022 01 19 23 00 00      5.74874   80.30457    9.69543  233.22363
2022 01 20 00 00 00     32.10180   89.56440    0.43560  243.40163
2022 01 20 01 00 00     -1.00000  100.80233  -10.80233  252.66737
2022 01 20 02 00 00     -1.00000  111.98539  -21.98539  261.59258
2022 01 20 03 00 00     -1.00000  123.43030  -33.43030  270.87594
2022 01 20 04 00 00     -1.00000  134.83296  -44.83296  281.57322
2022 01 20 05 00 00     -1.00000  145.71258  -55.71258  295.68283
2022 01 20 06 00 00     -1.00000  154.98483  -64.98483  317.43635
2022 01 20 07 00 00     -1.00000  159.96847  -69.96847  352.47654

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