Hi,
I am trying to optimize the polar alignement of my mount hosted remotely. I ran a TTPA from NINA to have a gross alignement followed by a 100 stars all sky model of my 10 micron GM1000 mount and both reported a PA with 30 arcsec and 55 arcsec respectively, BUT when I run a guiding session (with the guiding sensor of my duo camera (same focal length as the one used to run TPPA and the model) the evaluation of the PA error by PHD2 over 3mn is just below 5 arcmin. A difference from 1 to 5. I would naturally think that the ultimate verdict is the one from PHD2 that just measures the drift of the guiding star in comparison with the DEC axis (as discovered by the calibration process) but if the calibration is questionnable (as it was not perfect) ???
In your opinion which process provides the best estimate TPPA, a 100 stars sky model, of the drift measured by PHD2?
CS Frédéric
