[TRNSYS-users] Type 551b : strange values for solarazimuth angle

[Philip Horn]

Dear All,
I got some strange results with type 551b and investigated a little bit...
I pronted the output of SolAltAz_d (solar altitude angle in the plane of the field azimuth) for a Boston tmy2 file with 37deg slope and the result is this: see picture
Can someone please have a look and give a comment if this looks normal?
During summer month the angle only varies from around 70 to 95 degree... as the sun rises, it should start from somewhere close to 0 right?

Thanks in advance and have a nice weekend!!
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