Info in "instruments" in web browser incorrect

[Michael Miller]

I let a soon to be new customer log on to my system tonight. He was looking at the category instruments and equipment. I then looked at (never did so before) and some of the data is incorrect. The aperture is correct, but then everything else isn't. It says my focal length is 1422 ( it really shouldn't be but that's what plate solves read) it says my f ratio is 9.4 ( it's really 7.9) the detector info is wrong it says my pixel size is 9.0 x 9.0, it's really 7.4 x 7.4. and of course that means my FOV is also incorrect. Where is ACP getting this data, and does it matter if that info is incorrect? My true F/L is supposed to be 1200 (a 6 in refractor at f 7.9) I know ACP reports 1422, but maybe that's because the pixel size is wrong?

[Bob Denny]

Post a log file. PinPoint does not lie. The pixel sizes are read directly from the camera driver (supplied by the camera manufacturer) via MaxIm's scripting features. The Focal Length comes from what you set into the ACP Preferences, Telescope tab. If the plate solves say that your focal length is 1422 then it is 1422/ The only way that could be wrong is if your camera is reporting the wrong pixel sizes. YOu say that ACP shows the wrong pixel sizes (9.0 vs really 7.4)??? Then that is probably the root of the evil. Whatever kind of camera you have, it's reporting the wrong pixel sizes.

[Michael Miller]

Here's the log data. It's Apogee Alta. ACP is using the Apogee Alta USB/Driver. There's no place to change any settings in that driver for which camera it is. Does this really effect anything anyway?

CP console log opened 30-Jun-2012 23:09:09 UTC
This is ACP version 6.0 (build 11, Build for Hot Fix 4 (Nov 2011))
Licensed to Michael Miller
23:09:10 Initializing AcquireSupport V6.0.7
23:09:10 Telescope is ACP->AstroPhysicsV2, driver V2
23:09:10 MaxIm DL/CCD is version 5.18
23:09:10 Imager is Apogee USB/Net
23:09:10 Imager readout modes:
23:09:10 0 is Monochrome
23:09:10 1 is Monochrome (Preflash)
23:09:10 Guider is SBIG Universal(external guidescope)
23:09:10 Calculated unbinned plate scales (arcsec/pix): H = 1.30 V = 1.30
23:09:10 Calculated field of view (arcmin): H = 105.9 V = 70.6
23:09:10 Using focus offsets from FilterInfo.txt
23:09:10 This is AcquireImages V6.0.9
23:09:10 Custom auto-flip parameters are in use
23:09:11 Hardware pier side reporting is available.
23:09:11 Compiling plan...
23:09:11 (using ACP Plan Compiler V6.0.3)
23:09:11 ...plan OK!
23:09:11 This plan has 3 live target(s), 18 images
23:09:11 There are 405.0 min. of actual imaging time
23:09:11 Image file set-numbers start with 1
23:09:11 Periodic auto focus every 45 min.
23:09:11 Pointing exposures:
23:09:11 Exposure Interval = 15
23:09:11 Min brightness = 0
23:09:11 Sigma = 3
23:09:11 Cat max mag = 18
23:09:11 Final exposures:
23:09:11 Min brightness = 0
23:09:11 Sigma = 3
23:09:11 Cat max mag = 18
23:09:11 Starting run for plan Current plan.txt...
23:09:11 Autofocus will be done every 45 min.
23:09:11 ==== Starting target NGC 6914 ====
23:09:11 ;
23:09:11 ; --------------------------------------------
23:09:11 ; This plan was generated by ACP Planner 4.2.6
23:09:11 ; --------------------------------------------
23:09:11 ;
23:09:11 ; For: Mike Miller
23:09:11 ; Targets: 3
23:09:11 ; Start Imaging: 21:34:28 (local)
23:09:11 ; Total Time: 07:00:30
23:09:11 ; Autofocus at start of run.
23:09:11 ; Autofocus every 45 minutes.
23:09:11 ;
23:09:11 ; ---------------------------------------------
23:09:11 ;
23:09:11 ;
23:09:11 ; === Target NGC 6914 ===
23:09:11 ;
23:09:11 (wait until 03:34:28 UTC)
03:34:28 (wait finished)
03:34:28 (turning tracking on for live image(s))
03:34:35 Start slew to NGC 6914...
03:34:37 (wait for slew to complete)
03:35:03 (slew complete)
03:35:03 (request plan-start pointing update)
03:35:03 Ready for NGC 6914 (# 1 of 3 in set 1)
03:35:03 Do requested auto-focus...
03:35:03 [flip check: Tn=360s HAc=-18830s GW=F HAz=-18470s DWz=F WF=no]
03:35:03 **Autofocus refused: Position is within 5 deg. of horizon limit.
03:35:09 (no slew, scope already within max error of target)
03:35:09 (doing post-focus pointing update...)
03:35:09 [flip check: Tn=1860s HAc=-18824s GW=F HAz=-16964s DWz=F WF=no]
03:35:09 Updating pointing...
03:35:09 (taking 15 sec. exposure, Luminance filter, binning = 3)
03:35:09 (using Monochrome readout mode)
03:35:09 (starting exposure)
03:35:28 (exposure complete and image downloaded)
03:35:28 Image finished
03:35:28 Plate-solve pointing image.
03:35:28 80 image stars found
03:35:28 906 catalog stars found
03:35:28 Solved! 68 stars matched.
03:35:28 Average residual is 0.44 arcsec.
03:35:28 Pointing error is 8.496 arcmin @ angle 358.05
03:35:28 True focal length is 142.1 cm.
03:35:28 True binned plate scales (arcsec/pix): H = 3.91 V = 3.91
03:35:28 True image center (J2000): 20h 24m 46.3s 42° 37' 28.28"
03:35:28 Imager sky position angle is 180.6 deg.
03:35:29 [sync] telescope synced
03:35:29 Re-slew to target.
03:35:29 Start slew to NGC 6914...
03:35:30 (wait for slew to complete)
03:35:34 (slew complete)
03:35:34 Target is now centered.
03:35:34 Do periodic auto-focus...
03:35:34 [flip check: Tn=360s HAc=-18798s GW=F HAz=-18438s DWz=F WF=no]
03:35:34 **Autofocus refused: Position is within 5 deg. of horizon limit.
03:35:43 (no slew, scope already within max error of target)
03:35:43 (doing post-focus pointing update...)
03:35:43 Updating pointing...
03:35:43 (taking 15 sec. exposure, Luminance filter, binning = 3)
03:35:43 (using Monochrome readout mode)
03:35:43 (starting exposure)
03:36:02 (exposure complete and image downloaded)
03:36:02 Image finished
03:36:02 Plate-solve pointing image.
03:36:02 126 image stars found
03:36:02 906 catalog stars found
03:36:02 Solved! 111 stars matched.
03:36:02 Average residual is 0.51 arcsec.
03:36:02 Pointing error is 0.079 arcmin @ angle 34.94
03:36:02 True focal length is 142.1 cm.
03:36:02 True binned plate scales (arcsec/pix): H = 3.91 V = 3.91
03:36:02 True image center (J2000): 20h 24m 48.1s 42° 29' 02.67"
03:36:02 Imager sky position angle is 180.6 deg.
03:36:02 [sync] telescope synced
03:36:02 Within max error tolerance, no re-slew needed.
03:36:03 Target is now centered.
03:36:03 [flip check: Tn=780s HAc=-18770s GW=F HAz=-17990s DWz=F WF=no]
03:36:03 (long exp(s) or requested, no orbital tracking, trying to autoguide)
03:36:03 Switching from Luminance to H-Alpha filter for imaging
03:36:03 Focus change of 14 steps required
03:36:19 (guide star SNR=11.2 X=134 Y=94)
03:36:19 (initial exposure interval 3)
03:36:26 (guide star SNR=10.5 X=134 Y=94)
03:36:26 (final exposure interval 3)
03:36:26 (one more exposure for simple auto-dark)
03:36:30 (guide star SNR=14.1 X=134 Y=94)
03:36:37 (autoguiding at 3.00 sec.)
03:36:38 === Place in plan ===
03:36:38 Set 1 of 1
03:36:38 Target is "NGC 6914" (1 of 3)
03:36:38 Repeat 1 of 1 for this target
03:36:38 Filter H-Alpha (1 of 1)
03:36:38 Image 1 of 4 for this filter
03:36:38 Imaging to NGC 6914-S001-R001-C001-H-Alpha
03:36:38 (taking 1800 sec. exposure, H-Alpha filter, binning = 1)
03:36:38 (using Monochrome readout mode)
03:36:38 (guided dither - moving guide star)
03:36:43 (ex=0.63 ey=0.42)
03:36:43 (guided dither, 1 good cycles)
03:36:44 (ex=0.45 ey=0.44)
03:36:44 (guided dither, 2 good cycles)
03:36:51 (ex=0.13 ey=0.24)
03:36:51 (guided dither, 3 good cycles)
03:36:52 (ex=0.09 ey=0.09)
03:36:52 (guided dither, 4 good cycles)
03:36:55 (ex=0.10 ey=0.04)
03:36:55 (guided dither, 5 good cycles)
03:36:55 (guider check OK)
03:36:55 (starting exposure)
04:07:18 (exposure complete and image downloaded)
04:07:18 Image finished
04:07:20 Plate-solve final image
04:07:23 8257 image stars found
04:07:27 2875 catalog stars found
04:07:27 Solved! 184 stars matched.
04:07:27 Average residual is 0.34 arcsec.
04:07:27 Pointing error is 0.228 arcmin @ angle 309.70
04:07:27 True focal length is 142.2 cm.
04:07:27 True binned plate scales (arcsec/pix): H = 1.30 V = 1.30
04:07:27 True image center (J2000): 20h 24m 46.9s 42° 29' 07.54"
04:07:27 Imager sky position angle is 180.6 deg.
04:07:27 Image FWHM is 3.2 arcsec (2.42 pixels)
04:07:27 (avg FWHM = 3.55 arcsec)
04:07:27 Within max error tolerance, no recenter needed
04:07:27 Do periodic auto-focus...
04:07:27 [flip check: Tn=360s HAc=-16883s GW=F HAz=-16521s DWz=F WF=no]
04:07:28 (stopping the autoguider)
04:07:30 Search 5 deg-square area for suitable target stars
04:07:30 94 mag 6-9 catalog stars found.
04:07:30 (skipped 0 stars that would have flipped mount)
04:07:30 Found mag 5.2 star, GSC 3155-2323; nothing within 839 arcsec.
04:07:30 Star J2000 coordinates RA=20:16:55 Dec=40° 21' 53"
04:07:30 Using star at mag 5.2, exposure 1 sec. Slew to star.
04:07:30 Start slew to AutoFocus...
04:07:35 (wait for slew to complete)
04:07:38 (slew complete)
04:07:38 Updating pointing...
04:07:38 Switching from H-Alpha to Luminance filter for pointing exposure
04:07:38 Focus change of -14 steps required
04:07:44 (taking 15 sec. exposure, Luminance filter, binning = 3)
04:07:45 (using Monochrome readout mode)
04:07:45 (starting exposure)
04:08:10 (exposure complete and image downloaded)
04:08:10 Image finished
04:08:10 Plate-solve pointing image.
04:08:10 190 image stars found
04:08:10 910 catalog stars found
04:08:10 Solved! 140 stars matched.
04:08:10 Average residual is 0.57 arcsec.
04:08:10 Pointing error is 1.490 arcmin @ angle 183.83
04:08:10 True focal length is 142.2 cm.
04:08:10 True binned plate scales (arcsec/pix): H = 3.91 V = 3.91
04:08:10 True image center (J2000): 20h 16m 54.8s 40° 20' 23.79"
04:08:10 Imager sky position angle is 180.6 deg.
04:08:10 [sync] telescope synced
04:08:10 Within max error tolerance, no re-slew needed.
04:08:10 Target is now centered.
04:08:10 (AF will use Monochrome readout mode)
04:08:10 Starting Autofocus...
04:08:48 FocusMax auto-focus successful!
04:08:48 HFD = 2.28
04:08:48 Focus position = 8606
04:08:48 Slewing back to original position...
04:08:48 Start slew to AF return...
04:08:53 (wait for slew to complete)
04:08:57 (slew complete)
04:08:57 Autofocus finished.
04:09:10 (no slew, scope already within max error of target)
04:09:10 (doing post-focus pointing update...)
04:09:10 Updating pointing...
04:09:10 (taking 15 sec. exposure, Luminance filter, binning = 3)
04:09:10 (using Monochrome readout mode)
04:09:10 (starting exposure)
04:09:29 (exposure complete and image downloaded)
04:09:29 Image finished
04:09:29 Plate-solve pointing image.
04:09:29 235 image stars found
04:09:29 906 catalog stars found
04:09:29 Solved! 183 stars matched.
04:09:29 Average residual is 0.53 arcsec.
04:09:29 Pointing error is 0.795 arcmin @ angle 329.15
04:09:29 True focal length is 142.2 cm.
04:09:29 True binned plate scales (arcsec/pix): H = 3.91 V = 3.91
04:09:29 True image center (J2000): 20h 24m 45.7s 42° 29' 39.76"
04:09:29 Imager sky position angle is 180.6 deg.
04:09:30 [sync] telescope synced
04:09:30 Within max error tolerance, no re-slew needed.
04:09:30 Target is now centered.
04:09:30 [flip check: Tn=780s HAc=-16756s GW=F HAz=-15979s DWz=F WF=no]
04:09:30 (long exp(s) or requested, no orbital tracking, trying to autoguide)
04:09:30 Switching from Luminance to H-Alpha filter for imaging
04:09:30 Focus change of 14 steps required
04:09:44 (guide star SNR=36.3 X=133 Y=98)
04:09:45 (initial exposure interval 3)
04:09:52 (guide star SNR=34.8 X=133 Y=98)
04:09:52 (final exposure interval 3)
04:09:52 (one more exposure for simple auto-dark)
04:09:56 (guide star SNR=39.2 X=133 Y=98)
04:10:00 (autoguiding at 3.00 sec.)
04:10:00 === Place in plan ===
04:10:00 Set 1 of 1
04:10:00 Target is "NGC 6914" (1 of 3)
04:10:00 Repeat 1 of 1 for this target
04:10:00 Filter H-Alpha (1 of 1)
04:10:00 Image 2 of 4 for this filter
04:10:00 Imaging to NGC 6914-S001-R001-C002-H-Alpha
04:10:00 (taking 1800 sec. exposure, H-Alpha filter, binning = 1)
04:10:00 (using Monochrome readout mode)
04:10:00 (guided dither - moving guide star)
04:10:03 (ex=0.22 ey=0.05)
04:10:03 (guided dither, 1 good cycles)
04:10:09 (ex=0.09 ey=0.04)
04:10:09 (guided dither, 2 good cycles)
04:10:10 (ex=0.05 ey=0.01)
04:10:10 (guided dither, 3 good cycles)
04:10:13 (ex=0.16 ey=0.04)
04:10:13 (guided dither, 4 good cycles)
04:10:17 (ex=0.02 ey=0.10)
04:10:17 (guided dither, 5 good cycles)
04:10:17 (guider check OK)
04:10:17 (starting exposure)
04:40:38 (exposure complete and image downloaded)
04:40:38 Image finished
04:40:39 Plate-solve final image
04:40:42 7567 image stars found
04:40:46 2875 catalog stars found
04:40:46 Solved! 158 stars matched.
04:40:46 Average residual is 0.36 arcsec.
04:40:46 Pointing error is 0.887 arcmin @ angle 332.49
04:40:46 True focal length is 142.2 cm.
04:40:46 True binned plate scales (arcsec/pix): H = 1.30 V = 1.30
04:40:46 True image center (J2000): 20h 24m 45.7s 42° 29' 45.98"
04:40:46 Imager sky position angle is 180.6 deg.
04:40:46 Image FWHM is 3.1 arcsec (2.41 pixels)
04:40:46 Within max error tolerance, no recenter needed
04:40:46 [flip check: Tn=780s HAc=-14878s GW=F HAz=-14098s DWz=F WF=no]
04:40:46 (autoguider still running...)
04:40:47 === Place in plan ===
04:40:47 Set 1 of 1
04:40:47 Target is "NGC 6914" (1 of 3)
04:40:47 Repeat 1 of 1 for this target
04:40:47 Filter H-Alpha (1 of 1)
04:40:47 Image 3 of 4 for this filter
04:40:47 Imaging to NGC 6914-S001-R001-C003-H-Alpha
04:40:47 (taking 1800 sec. exposure, H-Alpha filter, binning = 1)
04:40:47 (using Monochrome readout mode)
04:40:47 (guided dither - moving guide star)
04:40:47 (ex=0.09 ey=0.16)
04:40:47 (guided dither, 1 good cycles)
04:40:48 (ex=0.03 ey=0.63)
04:40:48 (guided dither, 2 good cycles)
04:40:54 (ex=0.11 ey=0.47)
04:40:54 (guided dither, 3 good cycles)
04:40:55 (ex=0.10 ey=0.21)
04:40:55 (guided dither, 4 good cycles)
04:40:58 (ex=0.02 ey=0.18)
04:40:58 (guided dither, 5 good cycles)
04:40:58 (guider check OK)
04:40:58 (starting exposure)
05:11:21 (exposure complete and image downloaded)
05:11:22 Image finished
05:11:23 Plate-solve final image
05:11:26 8896 image stars found
05:11:30 2875 catalog stars found
05:11:31 Solved! 194 stars matched.
05:11:31 Average residual is 0.35 arcsec.
05:11:31 Pointing error is 0.744 arcmin @ angle 335.91
05:11:31 True focal length is 142.3 cm.
05:11:31 True binned plate scales (arcsec/pix): H = 1.30 V = 1.30
05:11:31 True image center (J2000): 20h 24m 46.2s 42° 29' 39.58"
05:11:31 Imager sky position angle is 180.6 deg.
05:11:31 Image FWHM is 2.8 arcsec (2.18 pixels)
05:11:31 (avg FWHM = 3.07 arcsec)
05:11:31 Within max error tolerance, no recenter needed
05:11:31 Do periodic auto-focus...
05:11:31 [flip check: Tn=360s HAc=-13031s GW=F HAz=-12669s DWz=F WF=no]
05:11:31 (stopping the autoguider)
05:11:33 Search 5 deg-square area for suitable target stars
05:11:33 94 mag 6-9 catalog stars found.
05:11:33 (skipped 0 stars that would have flipped mount)
05:11:33 Found mag 5.2 star, GSC 3155-2323; nothing within 839 arcsec.
05:11:33 Star J2000 coordinates RA=20:16:55 Dec=40° 21' 53"
05:11:33 Using star at mag 5.2, exposure 1 sec. Slew to star.
05:11:33 Start slew to AutoFocus...
05:11:38 (wait for slew to complete)
05:11:41 (slew complete)
05:11:41 Updating pointing...
05:11:41 Switching from H-Alpha to Luminance filter for pointing exposure
05:11:41 Focus change of -14 steps required
05:11:48 (taking 15 sec. exposure, Luminance filter, binning = 3)
05:11:48 (using Monochrome readout mode)
05:11:48 (starting exposure)
05:12:13 (exposure complete and image downloaded)
05:12:13 Image finished
05:12:13 Plate-solve pointing image.
05:12:13 247 image stars found
05:12:13 910 catalog stars found
05:12:13 Solved! 186 stars matched.
05:12:13 Average residual is 0.54 arcsec.
05:12:13 Pointing error is 2.821 arcmin @ angle 182.97
05:12:13 True focal length is 142.2 cm.
05:12:13 True binned plate scales (arcsec/pix): H = 3.91 V = 3.91
05:12:13 True image center (J2000): 20h 16m 54.5s 40° 19' 03.96"
05:12:13 Imager sky position angle is 180.6 deg.
05:12:13 [sync] telescope synced
05:12:13 Within max error tolerance, no re-slew needed.
05:12:13 Target is now centered.
05:12:13 (AF will use Monochrome readout mode)
05:12:13 Starting Autofocus...
05:13:13 **AutoFocus failed. Check FocusMax log for details.
05:13:13 Slewing back to original position...
05:13:13 Start slew to AF return...
05:13:15 (wait for slew to complete)
05:13:21 (slew complete)
05:13:21 Autofocus finished.
05:13:31 (no slew, scope already within max error of target)
05:13:31 (doing post-focus pointing update...)
05:13:31 Updating pointing...
05:13:31 (taking 15 sec. exposure, Luminance filter, binning = 3)
05:13:31 (using Monochrome readout mode)
05:13:31 (starting exposure)
05:13:50 (exposure complete and image downloaded)
05:13:50 Image finished
05:13:50 Plate-solve pointing image.
05:13:50 255 image stars found
05:13:51 906 catalog stars found
05:13:51 Solved! 196 stars matched.
05:13:51 Average residual is 0.51 arcsec.
05:13:51 Pointing error is 0.883 arcmin @ angle 322.19
05:13:51 True focal length is 142.2 cm.
05:13:51 True binned plate scales (arcsec/pix): H = 3.91 V = 3.91
05:13:51 True image center (J2000): 20h 24m 44.9s 42° 29' 40.65"
05:13:51 Imager sky position angle is 180.5 deg.
05:13:51 [sync] telescope synced
05:13:51 Within max error tolerance, no re-slew needed.
05:13:51 Target is now centered.
05:13:51 [flip check: Tn=780s HAc=-12885s GW=F HAz=-12108s DWz=F WF=no]
05:13:51 (long exp(s) or requested, no orbital tracking, trying to autoguide)
05:13:51 Switching from Luminance to H-Alpha filter for imaging
05:13:51 Focus change of 14 steps required
05:14:05 (guide star SNR=43.9 X=133 Y=98)
05:14:05 (initial exposure interval 3)
05:14:13 (guide star SNR=44.4 X=133 Y=98)
05:14:13 (final exposure interval 3)
05:14:13 (one more exposure for simple auto-dark)
05:14:17 (guide star SNR=48.2 X=133 Y=98)
05:14:21 (autoguiding at 3.00 sec.)
05:14:21 === Place in plan ===
05:14:21 Set 1 of 1
05:14:21 Target is "NGC 6914" (1 of 3)
05:14:21 Repeat 1 of 1 for this target
05:14:21 Filter H-Alpha (1 of 1)
05:14:21 Image 4 of 4 for this filter
05:14:21 Imaging to NGC 6914-S001-R001-C004-H-Alpha
05:14:21 (taking 1800 sec. exposure, H-Alpha filter, binning = 1)
05:14:21 (using Monochrome readout mode)
05:14:21 (guided dither - moving guide star)
05:14:25 (ex=0.08 ey=0.89)
05:14:25 (guided dither, 1 good cycles)
05:14:30 (ex=0.98 ey=0.30)
05:14:30 (guided dither, 2 good cycles)
05:14:33 (ex=0.32 ey=0.05)
05:14:33 (guided dither, 3 good cycles)
05:14:38 (ex=0.10 ey=0.00)
05:14:38 (guided dither, 4 good cycles)
05:14:39 (ex=0.10 ey=0.03)
05:14:39 (guided dither, 5 good cycles)
05:14:39 (guider check OK)
05:14:39 (starting exposure)
05:44:59 (exposure complete and image downloaded)
05:45:00 Image finished
05:45:05 Plate-solve final image
05:45:08 9140 image stars found
05:45:08 2875 catalog stars found
05:45:08 Solved! 194 stars matched.
05:45:08 Average residual is 0.35 arcsec.
05:45:08 Pointing error is 0.713 arcmin @ angle 338.49
05:45:08 True focal length is 142.3 cm.
05:45:08 True binned plate scales (arcsec/pix): H = 1.30 V = 1.30
05:45:08 True image center (J2000): 20h 24m 46.5s 42° 29' 38.59"
05:45:08 Imager sky position angle is 180.6 deg.
05:45:08 Image FWHM is 3.2 arcsec (2.46 pixels)
05:45:08 (avg FWHM = 3.08 arcsec)
05:45:08 ==== Starting target M 27 ====
05:45:08 ;
05:45:08 ; === Target M 27 ===
05:45:08 ;
05:45:08 (wait until 05:39:43 UTC)
05:45:12 (wait finished)
05:45:22 (stopping the autoguider)
05:45:22 Start slew to M 27...
05:45:23 (wait for slew to complete)
05:45:38 (slew complete)
05:45:38 (request slew-distance pointing update)
05:45:38 Ready for M 27 (# 2 of 3 in set 1)
05:45:38 M 27 specifies 2 sets of images.
05:45:38 This is filter group 1 of 2.
05:45:38 [flip check: Tn=1860s HAc=-9472s GW=F HAz=-7612s DWz=F WF=no]
05:45:38 Updating pointing...
05:45:38 Switching from H-Alpha to Luminance filter for pointing exposure
05:45:38 Focus change of -14 steps required
05:45:42 (taking 15 sec. exposure, Luminance filter, binning = 3)
05:45:42 (using Monochrome readout mode)
05:45:42 (starting exposure)
05:46:07 (exposure complete and image downloaded)
05:46:08 Image finished
05:46:08 Plate-solve pointing image.
05:46:08 97 image stars found
05:46:08 1252 catalog stars found
05:46:08 Solved! 71 stars matched.
05:46:08 Average residual is 0.46 arcsec.
05:46:08 Pointing error is 4.370 arcmin @ angle 118.62
05:46:08 True focal length is 142.3 cm.
05:46:08 True binned plate scales (arcsec/pix): H = 3.91 V = 3.91
05:46:08 True image center (J2000): 19h 59m 52.5s 22° 40' 55.52"
05:46:08 Imager sky position angle is 180.6 deg.
05:46:08 [sync] telescope synced
05:46:08 Re-slew to target.
05:46:08 Start slew to M 27...
05:46:13 Target is now centered.
05:46:13 This filter group has a count of 4 images.
05:46:13 Do periodic auto-focus...
05:46:13 [flip check: Tn=360s HAc=-9454s GW=F HAz=-9077s DWz=F WF=no]
05:46:15 Search 5 deg-square area for suitable target stars
05:46:15 61 mag 6-9 catalog stars found.
05:46:15 (skipped 0 stars that would have flipped mount)
05:46:15 Found mag 5.1 star, GSC 2154-4100; nothing within 1451 arcsec.
05:46:15 Star J2000 coordinates RA=20:06:53 Dec=23° 36' 52"
05:46:15 Using star at mag 5.1, exposure 1 sec. Slew to star.
05:46:15 Start slew to AutoFocus...
05:46:17 (wait for slew to complete)
05:46:22 (slew complete)
05:46:22 Updating pointing...
05:46:22 (taking 15 sec. exposure, Luminance filter, binning = 3)
05:46:22 (using Monochrome readout mode)
05:46:22 (starting exposure)
05:46:41 (exposure complete and image downloaded)
05:46:41 Image finished
05:46:41 Plate-solve pointing image.
05:46:41 43 image stars found
05:46:41 1020 catalog stars found
05:46:41 Solved! 33 stars matched.
05:46:41 Average residual is 0.45 arcsec.
05:46:41 Pointing error is 0.639 arcmin @ angle 340.95
05:46:41 True focal length is 142.2 cm.
05:46:41 True binned plate scales (arcsec/pix): H = 3.91 V = 3.91
05:46:41 True image center (J2000): 20h 06m 52.5s 23° 37' 28.24"
05:46:41 Imager sky position angle is 180.6 deg.
05:46:42 [sync] telescope synced
05:46:42 Within max error tolerance, no re-slew needed.
05:46:42 Target is now centered.
05:46:42 (AF will use Monochrome readout mode)
05:46:42 Starting Autofocus...
05:47:41 FocusMax auto-focus successful!
05:47:41 HFD = 2.39
05:47:41 Focus position = 8548
05:47:41 Slewing back to original position...
05:47:41 Start slew to AF return...
05:47:43 (wait for slew to complete)
05:47:44 (slew complete)
05:47:44 Autofocus finished.
05:47:59 (no slew, scope already within max error of target)
05:47:59 (doing post-focus pointing update...)
05:47:59 Updating pointing...
05:47:59 (taking 15 sec. exposure, Luminance filter, binning = 3)
05:47:59 (using Monochrome readout mode)
05:47:59 (starting exposure)
05:48:18 (exposure complete and image downloaded)
05:48:18 Image finished
05:48:18 Plate-solve pointing image.
05:48:18 87 image stars found
05:48:18 1252 catalog stars found
05:48:18 Solved! 62 stars matched.
05:48:18 Average residual is 0.52 arcsec.
05:48:18 Pointing error is 0.657 arcmin @ angle 166.76
05:48:18 True focal length is 142.2 cm.
05:48:18 True binned plate scales (arcsec/pix): H = 3.91 V = 3.91
05:48:18 True image center (J2000): 19h 59m 36.5s 22° 42' 22.82"
05:48:18 Imager sky position angle is 180.6 deg.
05:48:19 [sync] telescope synced
05:48:19 Within max error tolerance, no re-slew needed.
05:48:19 Target is now centered.
05:48:19 [flip check: Tn=780s HAc=-9311s GW=F HAz=-8531s DWz=F WF=no]
05:48:19 (long exp(s) or requested, no orbital tracking, trying to autoguide)
05:48:19 Switching from Luminance to H-Alpha filter for imaging
05:48:19 Focus change of 14 steps required
05:48:34 (guide star SNR=9.3 X=117 Y=142)
05:48:34 (initial exposure interval 3)
05:48:42 (guide star SNR=7.2 X=117 Y=142)
05:48:42 (final exposure interval 3)
05:48:42 (one more exposure for simple auto-dark)
05:48:46 (guide star SNR=9.6 X=117 Y=141)
05:48:50 (autoguiding at 3.00 sec.)
05:48:50 === Place in plan ===
05:48:50 Set 1 of 1
05:48:50 Target is "M 27" (2 of 3)
05:48:50 Repeat 1 of 1 for this target
05:48:50 Filter H-Alpha (1 of 2)
05:48:50 Image 1 of 4 for this filter
05:48:50 Imaging to M 27-S001-R001-C001-H-Alpha
05:48:50 (taking 1800 sec. exposure, H-Alpha filter, binning = 1)
05:48:50 (using Monochrome readout mode)
05:48:50 (guided dither - moving guide star)
05:48:53 (ex=0.03 ey=0.24)
05:48:53 (guided dither, 1 good cycles)
05:48:59 (ex=1.11 ey=0.76)
05:48:59 (guider error n/a or too high, try #2)
05:49:01 (ex=0.29 ey=0.23)
05:49:01 (guided dither, 1 good cycles)
05:49:07 (ex=0.06 ey=0.10)
05:49:07 (guided dither, 2 good cycles)
05:49:08 (ex=0.09 ey=0.14)
05:49:08 (guided dither, 3 good cycles)
05:49:12 (ex=0.05 ey=0.18)
05:49:12 (guided dither, 4 good cycles)
05:49:16 (ex=0.07 ey=0.14)

[Bob Denny]

We logged in this morning and ran a simple script to read out the pixel sizes, and it's definitely reporting 9 microns! So this one will need to be solved by Apogee. Maybe you have a different sensor (maybe a more expensive one ).

[Michael Miller]

We logged in this morning and ran a simple script to read out the pixel sizes, and it's definitely reporting 9 microns! So this one will need to be solved by Apogee. Maybe you have a different sensor (maybe a more expensive one ).

Apogee confirmed that data is generated by their software. A table is created based on camera model. They are looking to see why my camera model info is not in the table with the correct data. They will probably send me a patch to fix the problem.

[Bob Denny]

Poifect!! If they do, be sure to change the Focal Length in ACP. You may not have to, as ACP will "patch" it if it sees that it is too far off.