The fit uncertainty region saved in the TARGET_NAME_sed.fits by the GTAnalysis function sed() is often unreasonable small, as shown in the figure below (it looks like a single solid line, but there are three lines in total, i.e. one line for the fit, and two delimiting the uncertainty region).
This analysis was done for BL Lac with the following configuration:
The same issue frequently happens with other data sets and spectral models, even if the fit quality returned by GTAnalysis.fit() is 3 (as is the case for the plot shown above).
Hello,
The fit uncertainty region saved in the TARGET_NAME_sed.fits by the GTAnalysis function sed() is often unreasonable small, as shown in the figure below (it looks like a single solid line, but there are three lines in total, i.e. one line for the fit, and two delimiting the uncertainty region).
This analysis was done for BL Lac with the following configuration:
emin : 100.0 emax : 200000.0 zmax : 90 evclass : 128 evtype : 3 ra: 330.68038041666665 dec: 42.277771944444446 tmin: 239557417 tmax: 245691781
The same issue frequently happens with other data sets and spectral models, even if the fit quality returned by GTAnalysis.fit() is 3 (as is the case for the plot shown above).