gregbradley
05-08-2015, 11:34 AM
I did several Tpoint models last night and go it to the point where Tpoint said no more adjustments. Its not clear if PEC was active or not as its something that is checked on the AP driver but that disappears when you start using SkyX for a while.
Guide errors would seem to indicate PEC was not being implemented.
I didn't do accurate PA on the final Tpoint as the model I did earlier of about 25 points made PA a lot worse. Perhaps the final accurate PA if only expects a small adjustment may be OK. I don't know how much to trust the TPoint model RMS values are very low at about 18. I don't recall getting RMS errors that low before on a TPoint model.
Can anyone using AP mounts advise me of the best way to run the mount using Sky X?
I ran it both ways where you select AP1600 in the list of mounts and then use the Sky X autoguider and select pulse guide (I also ran an autoguiding cable and used relays but that gave worse results).
I also ran the mount through the driver and selected Ascom Mount in the list and set the Ascom driver to teleAPI. Either way when selecting pulse guide it does not need a separate guide cable although I was unable to calibrate on the last setup.
The good news is that all got working to this point within 5 hours which is some sort of a record for me!
I suspect PA is still off as I am getting largish errors in the Y axis and PE is larger than I would expect if PEC were working. 10 minute subs gave medium elongated stars. Not shocking, but not good enough by a long ways but better by nights end than at the start of first guiding the Honders at 1159mm focal length.
Greg.
Guide errors would seem to indicate PEC was not being implemented.
I didn't do accurate PA on the final Tpoint as the model I did earlier of about 25 points made PA a lot worse. Perhaps the final accurate PA if only expects a small adjustment may be OK. I don't know how much to trust the TPoint model RMS values are very low at about 18. I don't recall getting RMS errors that low before on a TPoint model.
Can anyone using AP mounts advise me of the best way to run the mount using Sky X?
I ran it both ways where you select AP1600 in the list of mounts and then use the Sky X autoguider and select pulse guide (I also ran an autoguiding cable and used relays but that gave worse results).
I also ran the mount through the driver and selected Ascom Mount in the list and set the Ascom driver to teleAPI. Either way when selecting pulse guide it does not need a separate guide cable although I was unable to calibrate on the last setup.
The good news is that all got working to this point within 5 hours which is some sort of a record for me!
I suspect PA is still off as I am getting largish errors in the Y axis and PE is larger than I would expect if PEC were working. 10 minute subs gave medium elongated stars. Not shocking, but not good enough by a long ways but better by nights end than at the start of first guiding the Honders at 1159mm focal length.
Greg.