Meridian flip

Horsehead

USA
ASIAIR Pro
Skywatcher EQ6R Pro connected via EQ Mod no Synscan handbox
294MC
SKYWATCHER Omni XLT150 f/5
120MM
Orion 60mm f/4
EAF
ZWO filter drawer 2”
L-eNhance
Last night was my first time imaging to the meridian. The rig stopped at the meridian. I went to home twice and tried going back to IC6960, and the mount would go to the meridian and stop. I finally went back to home and restarted. The next time I commanded, it went to my target on the other side of the meridian. I was pretty sure everything was set up in ASIAIR correctly, but I apparently missed something. What might that have been?:

w7ay

Horsehead The next time I commanded, it went to my target on the other side of the meridian.

The delay in obeying the Meridian Flip may have to do with the east-west leveling of your mount. Check my answer to Walter in this other thread:

https://bbs.astronomy-imaging-camera.com/d/12799-auto-center-fails-after-meridian-flip/2

I have a paragraph in my reply about lateness of Meridian flips. I had also in the past posted about this in other threads; but it might be difficult to find them.

If you had to wait 4 minutes before the mount succeeds in doing a Meridian flip, your tripod might just simply be 1 degree off level in the east-west direction.

Chen

Horsehead

I already checked that answer before I wrote to you. I read nearly every post on the forum. I read every post that has to do with ASIAIR, as I believe it is truly a blessing to us mortals. I precisely level my mount every time because I know it is very important. Perhaps the ASIAIR could include in the polar alignment portion of it’s program a way to precisely level the mount. In my geometry oriented mind I’m thinking that it would be possible.🙂🤖

wvreeven

SkyWatcher mounts do NOT execute a meridian flip immediately after culmination of an object. With both my HEQ5 and EQ6-R it can take up to 15 minutes after culmination before the flip happens. As far as I know (and I have searched a lot for this) this cannot be configured in the mount. The only thing to do is to be patient. I haven't tried the AAP yet with my SkyWatcher mounts so I don't know what the meridian flip behavior is but I would assume that the AAP keeps on trying until the flip succeeds. If this is not the case then this should be changed in the AAP.

EDIT: in case this isn't clear: all that AAP does is issue a GOTO. It is up to the mount to decide whether or not a meridian flip needs to be done. There is nothing that AAP can do about that so it is a mount issue (or rather feature).