Hello. I am trying to work through the Development Impact Analysis solution, specifically the shadow impact analysis tools. I have been following the helpful video "Shadow Impact Analysis Tutorial for ArcGIS Pro" on ESRI's website. However, I am stuck at step one - Create Sun Positions task. I have tried with my own data as well as using the exact data and parameters used in the video. No matter what I do or what data I try, I receive the same error below. There seems to be a problem with the underlying python script, receiving a "math domain" error. I have included an example output from the tool below and have only removed my username from file paths for security purposes. Help please.
Create Sun Positions
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Parameters
Input Observer aoi_proposed_development
Observer Elevation 298.3 Feet
Observer Horizon Distance 4809273.7 Feet
Output Sun Skymap C:\Users\Downloads\ShadowImpactAnalysis\ShadowImpactAnalysis\ShadowImpactAnalysis.gdb\aoi_proposed_development_CreateSunSkymap
Time Zone (UTC-08:00) Pacific Time (US & Canada)
Start Date 7/20/2023
Time Interval {hh:mm} 00:30
End Date
Day Interval
Apply daylight savings time adjustment
Temperature Unit Celsius
Temperature in Degrees 10
Atmospheric Pressure in Millibars 1010
Minimum Sun Angle 5
Use apparent position true
Add extended sun calculation attributes
layer1
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Messages
Start Time: Thursday, July 20, 2023 2:03:00 PM
Project Home Directory is: C:\Users\Downloads\ShadowImpactAnalysis\ShadowImpactAnalysis
Grid convergence angle is 12.18.
Calculating sun observations from -105.581°, 44.03°...
Traceback (most recent call last):
File "C:\Users\Downloads\ShadowImpactAnalysis\ShadowImpactAnalysis\Scripts\CreateSunSkyMap_new.py", line 424, in <module>
sun = SunEphemeris(obs, calc, None, apparent, atmRefraction, timeAdjustment=timeZone)
File "C:\Users\Downloads\ShadowImpactAnalysis\ShadowImpactAnalysis\Scripts\CreateSunSkyMap_new.py", line 287, in __init__
self.azimuth = getAzimuthAngle(self.declination, radians(self.elevationAngle), radians(observer.lat),
File "C:\Users\Downloads\ShadowImpactAnalysis\ShadowImpactAnalysis\Scripts\CreateSunSkyMap_new.py", line 262, in getAzimuthAngle
azimuth = (540 - degrees(acos(((sin(latitude_radians) * cos(zenith)) - sin(sun_declination))
ValueError: math domain error
Failed script Create Sun Positions...
Failed to execute (CreateSunSkymap).
Failed at Thursday, July 20, 2023 2:03:01 PM (Elapsed Time: 0.69 seconds)
