Kipp&Zonen UVS-E-T UV Radiometers - Manual (Page 19)

6.2 Location
In this page the location of the radiometer must be entered.
Positive longitude is eastern hemisphere and positive latitude is northern hemisphere.
Note that it is important that the location is accurate in order to get the right correction factor for the radiometer reading and
to be able to make a good comparison with the atmospheric transmission model.
Example
19
UVIATOR software manual