I seems that version 2.6.0.23 did not incorporate the meridian flip fix that was included in the 2.6.0.23 beta, I upgraded to the beta version after the fix was added and had no issues with meridian flips since. Two days ago after upgrading to version 2.6.0.23 I experienced a failure where the post meridian flip plate solving did not properly solve to the same position as the pre flip images. This was the first post flip miss since I installed the beta version and I have rolled back to 2.6.0.21. sg_logfile_20170518213932.zip (127.5 KB)
the log files from last nights session are included.
I am not sure what happened here, but it is not a result of the meridian flip fix not making into release. Unless we are speaking of different issues, the one I think you are referring to is that SGPro did not solve the current location before flip and just used the mount’s reported position as reference. Your flip definitely starts out with a solve and then the iterative process shows definite convergence on the requested location.
Ken, thanks for the quick reply and for verifying that the fix is actually in the new release. You are speaking of the exact fix I was referring to. I find it strange that I had issues with the flip not properly plate solving and shifting the image once I installed the latest version but will check my hardware and other settings that may have caused this.
I’m not really seeing anything that points to it being off. We solved prior to the flip and then got within 9 pixels of that location after the meridian flip.
Solve:
[05-19-17 02:41:28.197][DEBUG] [Telescope Thread] *********** SUCCESSFUL SOLVE *************
[05-19-17 02:41:28.197][DEBUG] [Telescope Thread] SOLVER: False
[05-19-17 02:41:28.197][DEBUG] [Telescope Thread] SUCCESS: True
[05-19-17 02:41:28.197][DEBUG] [Telescope Thread] CONF: 100
[05-19-17 02:41:28.197][DEBUG] [Telescope Thread] BLIND: False
[05-19-17 02:41:28.197][DEBUG] [Telescope Thread] RA: 18.3538436449148
[05-19-17 02:41:28.197][DEBUG] [Telescope Thread] DEC: -16.1818052196903
[05-19-17 02:41:28.197][DEBUG] [Telescope Thread] SCALE: 1.50607
[05-19-17 02:41:28.197][DEBUG] [Telescope Thread] FLIPPED: False
[05-19-17 02:41:28.197][DEBUG] [Telescope Thread] ANGLE (EON): 94.2
[05-19-17 02:41:28.197][DEBUG] [Telescope Thread] MSG: Valid solve.
[05-19-17 02:41:28.197][DEBUG] [Telescope Thread] ******************************************
Slew:
[05-19-17 02:42:20.912][DEBUG] [Telescope Thread] Telescope: Slewing to J2000 RA: 18.3538436449148 (18h21m13.84s) Dec: -16.1818052196903 (-16°10'54.50")
Eventually the auto center is successful:
[05-19-17 02:44:29.993][DEBUG] [Telescope Thread] *********** SUCCESSFUL SOLVE *************
[05-19-17 02:44:29.993][DEBUG] [Telescope Thread] SOLVER: False
[05-19-17 02:44:29.993][DEBUG] [Telescope Thread] SUCCESS: True
[05-19-17 02:44:29.993][DEBUG] [Telescope Thread] CONF: 105
[05-19-17 02:44:29.993][DEBUG] [Telescope Thread] BLIND: False
[05-19-17 02:44:29.993][DEBUG] [Telescope Thread] RA: 18.3540923849922
[05-19-17 02:44:29.993][DEBUG] [Telescope Thread] DEC: -16.1822349380366
[05-19-17 02:44:29.993][DEBUG] [Telescope Thread] SCALE: 1.50559
[05-19-17 02:44:29.993][DEBUG] [Telescope Thread] FLIPPED: False
[05-19-17 02:44:29.993][DEBUG] [Telescope Thread] ANGLE (EON): 274.2
[05-19-17 02:44:29.993][DEBUG] [Telescope Thread] MSG: Valid solve.
[05-19-17 02:44:29.993][DEBUG] [Telescope Thread] ******************************************
[05-19-17 02:44:29.993][DEBUG] [Telescope Thread] Checking to see if solve might be bad...
[05-19-17 02:44:29.994][DEBUG] [Telescope Thread] Solve appears to be good...
[05-19-17 02:44:29.994][DEBUG] [Telescope Thread] Auto center validation frame solved successfully...
[05-19-17 02:44:29.994][DEBUG] [Telescope Thread] Telescope: Syncing to J2000 RA: 18.3540923849922 Dec: -16.1822349380366
[05-19-17 02:44:29.994][DEBUG] [Telescope Thread] Telescope: Sync behavior set to "Sync"...
[05-19-17 02:44:29.994][DEBUG] [Telescope Thread] Telescope: Sync Passed in J2000 but mount requires JNOW, converting...
[05-19-17 02:44:29.995][DEBUG] [Telescope Thread] Telescope: Syncing to JNOW RA: 18.3709118033472 Dec: -16.1711751628137
[05-19-17 02:44:30.374][DEBUG] [Telescope Thread] Attempting to write fits header info for C:\Users\bcasc\AppData\Local\SequenceGenerator\Temp\plate_solve_image.fit
[05-19-17 02:44:30.374][DEBUG] [Telescope Thread] Opening fits file...
[05-19-17 02:44:30.376][DEBUG] [Telescope Thread] Successfully opened fits file...
[05-19-17 02:44:30.376][DEBUG] [Telescope Thread] Writing fits headers...
[05-19-17 02:44:30.376][DEBUG] [Telescope Thread] Closing fits file
[05-19-17 02:44:30.376][DEBUG] [Telescope Thread] Could not sync the rotator to 274.2 degrees (not connected)!
[05-19-17 02:44:30.390][DEBUG] [Telescope Thread] Auto center complete...
[05-19-17 02:44:30.616][DEBUG] [Center Scope Thread] Automatic Auto Center Success - Total Error <= Allowable error: 9.0 <= 50.0Really strange, this was my 7th session on this object using different filters and in this session, the entire image was shifted up, like it used to do with the previous version which had the meridian flip issue. I completed an 8th session with Sii and didn’t have this issue. each session is registered and aligned with the same reference image when preprocessing. the attached image is the final alignment of Oiii data from this night and two previous night and clearly shows the shift at the bottom. Maybe it wasn’t a flip issue but something clearly shifted this session up.
The two images show the Oiii stacked and aligned after 3 sessions and the final stacked aligned version of all 8 sessions which shows the shift of that session a little more. please ignore the rotational ship as that occurred early on when the camera was accidentally rotated between the Ha sessions and the following Oiii / Sii sessions.
Maybe I’m missing it but I don’t see a significant shift between those two images. Besides the rotation. Comparing groups of stars around the edges of both images they seem very close to me. Maybe I’m missing something?
Thanks,
Jared
sorry, maybe I should have used the actual subs, I was using a stacked example to show the band at the bottom circled in blue (Oiii stacked master and combined color version) this band shows the shift that occurred in the Oiii data that night, I will search through the subs and find a pre / post individual subs and post that instead but may take a while to find it.