Hello Bob, Dick and Lloyd,

I am posting this here because it may be related.

Several nights ago I added a new target to my schedule. Its RA and Dec are 11.53.24 and +59.39.57. It is a 6 hour time sequence of 300 sec images,
When imaging began the target was in the east and all was fine until the target crossed the meridian and mount flipped ( I use a C14 on a Bisque GEM)
After the flip I have no idea where the system was pointing. I have often done time sequences of targets that crossed the meridian with no problems. I cant say they were as high as +59 39.
To try and ameliorate the problem I put Hour Angle restraints of 0.1 and 11.9 in the Scheduler entry to force imaging to begin after the target had crossed the meridian.
It didn't help. All I can report is that the scope was pointed to the same wrong coordinates.

I've included the log from last night. I've used ACP for a decade, but will admit I don't know what some of the messages mean!
In case its relevant, I recently put a new camera on the system with a smaller field of view. Perhaps I need to adjust something that has to do with pointing?
..george


CP console log opened 20-Apr-2017 05:08:05 UTC
This is ACP version 8.0 (build 5, V8 Production Release A)
Licensed to George Sjoberg
05:08:05 This is AcquireScheduler V8.0.8
05:08:05 Custom image file path/names are in use
05:08:05 [PreFlip=300 PostFlip=300 AF=180 PU=60]
05:08:05 Hardware GEM pier side reporting is available.
05:08:06 Initializing AcquireSupport V8.0.3
05:08:06 Weather safe, server is NMSkies Control Weather Data
05:08:06 Telescope is ACP->Driver for telescope connected through TheSky, driver V3
05:08:07 MaxIm DL is version 6.13
05:08:07 Imager is SBIG Universal
05:08:07 Using focus offsets and star mags from FilterInfo.txt
05:08:07 Selecting filter C from previous ACP run at 20170420@023323 UTC
05:08:07 Imager readout modes:
05:08:07 0 is Raw
05:08:07 1 is Raw w/RBI pre-flash
05:08:07 Guider is SBIG Universal (no rotator)
05:08:07 Guider plate scale unknown, guided dither with guider pixels
05:08:07 Max unguided exposure 901 sec.
05:08:07 and exposure agregation is disabled
05:08:07 (assuring that FocusMax is running now...)
05:08:12 Calculated unbinned plate scales (arcsec/pix): H = 0.47 V = 0.47
05:08:12 Calculated field of view (arcmin): H = 12.1 V = 8.1
05:08:12 Plate solving With A2.0 (best for pointing)
05:08:25 Scope cannot be synced, so all-sky solving is not useful
05:08:25 ACPS Observation TS01(1 of 1)
05:08:25 (belongs to Project Vitaly Neustroev, Plan TS01)
05:08:25 (turning on sidereal tracking)
05:08:25 Pointing updates are enabled
05:08:25 Start slew to TS01...
05:08:27 (wait for slew to complete)
05:09:02 (slew complete)
05:09:02 [flip check: Tn=660s HAc=391s GW=T HAz=1051s DWz=T WF=no]
05:09:02 Doing auto-center...
05:09:02 (taking 15 sec. exposure, C filter, binning = 4)
05:09:02 (using Raw readout mode)
05:09:02 (starting exposure)
05:09:18 (exposure complete)
05:09:20 (exposure complete and image downloaded)
05:09:21 Image finished
05:09:21 Plate-solve pointing image.
05:09:21 6 image stars found
05:09:21 60 catalog stars found
05:09:21 ** No matching stars found. Check your estimated center-point RA/Dec, and your image scaling and quality.
05:09:21 Start slew to offset...
05:09:23 (wait for slew to complete)
05:09:33 (slew complete)
05:09:33 (taking 15 sec. exposure, C filter, binning = 4)
05:09:34 (using Raw readout mode)
05:09:34 (starting exposure)
05:09:49 (exposure complete)
05:09:52 (exposure complete and image downloaded)
05:09:53 Image finished
05:09:53 Plate-solve pointing image.
05:09:53 10 image stars found
05:09:53 52 catalog stars found
05:09:53 ** No matching stars found. Check your estimated center-point RA/Dec, and your image scaling and quality.
05:09:53 Start slew to TS01...
05:09:55 (wait for slew to complete)
05:10:05 (slew complete)
05:10:05 [flip check: Tn=600s HAc=453s GW=T HAz=1053s DWz=T WF=no]
05:10:05 Imaging to TS01-20170420-051005-V-S001-R001-2457863-W
05:10:05 Switching from C to V filter for imaging
05:10:05 Focus change of 67 steps required
05:10:06 (taking 300 sec. exposure, V filter, binning = 2)
05:10:06 (using Raw readout mode)
05:10:09 (starting exposure)
05:15:10 (exposure complete)
05:15:12 (exposure complete and image downloaded)
05:15:13 Image finished
05:15:17 Plate-solve TS01-20170420-051005-V-S001-R001-2457863-W final image.
05:15:17 69 image stars found
05:15:18 60 catalog stars found
05:15:18 ** Failed to solve plate, possibly due to input plate scale being too far off.
05:15:18 [flip check: Tn=600s HAc=767s GW=T HAz=1367s DWz=T WF=no]
05:15:18 Imaging to TS01-20170420-051518-V-S001-R002-2457863-W
05:15:18 (taking 300 sec. exposure, V filter, binning = 2)
05:15:18 (using Raw readout mode)
05:15:18 (starting exposure)
05:20:18 (exposure complete)
05:20:20 (exposure complete and image downloaded)
05:20:22 Image finished
05:20:26 First image plate-solve failed, skip solves until next target.
05:20:26 [flip check: Tn=600s HAc=1076s GW=T HAz=1676s DWz=T WF=no]
05:20:26 Imaging to TS01-20170420-052026-V-S001-R003-2457863-W
05:20:26 (taking 300 sec. exposure, V filter, binning = 2)
05:20:26 (using Raw readout mode)
05:20:26 (starting exposure)
05:25:26 (exposure complete)
05:25:28 (exposure complete and ima