ACP console log opened 22-Feb-2024 10:54:20 UTC This is ACP version 9.0 (build 4, ACP 9 Production Release) Licensed to Arne Henden 10:54:20 This is AcquireScheduler V9.0.3 10:54:20 Custom image file path/names are in use 10:54:20 [PreFlip=300 PostFlip=300 AF=180 PU=60] 10:54:20 Hardware GEM pier side reporting is available. 10:54:21 Initializing AcquireSupport V9.0.3 10:54:21 Weather safe, server is Boltwood Cloud Sensor II 10:54:21 Telescope is ACP->TM61, driver V3 10:54:21 Dome is MaxDome 10:54:21 MaxIm DL is version 6.28 10:54:21 Imager is ASCOM 10:54:21 Using focus offsets and star mags from FilterInfo.txt 10:54:21 Selecting filter SR from previous ACP run at 20240222@105300 UTC 10:54:21 Imager readout modes: 10:54:21 0 is Fast 10:54:21 1 is Normal 10:54:21 Guider is SX Universal (no rotator) 10:54:21 Guider plate scale is 0.2 arcsec/pix. Guided dither with main imager pixels 10:54:21 Max unguided exposure 60 sec. 10:54:21 Guider is set to multi-star mode 10:54:21 (assuring that FocusMax is running now...) 10:54:21 Calculated unbinned plate scales (arcsec/pix): H = 0.23 V = 0.23 10:54:21 Calculated field of view (arcmin): H = 36.3 V = 24.3 10:54:21 Plate solving with GSC 1.1 (ok for wider fields) 10:54:21 Mount supports tracking rate offsets 10:54:21 ==== Starting target NGC_6171 ==== 10:54:21 ACPS Observation NGC_6171(1 of 1) 10:54:21 (belongs to Project AAVSO_Pgc_Welch_AUTO_ver2411, Plan NGC_6171) 10:54:21 (turning on sidereal tracking) 10:54:22 Pointing updates are enabled 10:54:22 Catalog Maximum Mag = 18.0 10:54:22 Start slew to NGC_6171... 10:54:23 (wait for slew to complete) 10:55:23 (slew complete) 10:55:23 [flip check: Tn=420s HAc=-9472s GW=T HAz=-9052s DWz=T WF=no] 10:55:23 Updating pointing... 10:55:23 (taking 10 sec. exposure, SR filter, binning = 4) 10:55:23 (using Fast readout mode) 10:55:23 (starting exposure) 10:55:38 (exposure complete) 10:55:41 (exposure complete and image downloaded) 10:55:42 Image finished 10:55:42 Plate-solve pointing image. 10:55:43 604 image stars found 10:55:43 173 catalog stars found 10:55:44 Solved! 62 stars matched. 10:55:44 Average residual is 0.3 arcsec. 10:55:44 Pointing error is 2.625 arcmin @ angle 276.48 10:55:44 True focal length is 3467.6 mm. 10:55:44 True binned plate scales (arcsec/pix): H = 0.89 V = 0.89 10:55:44 True image center (J2000): 16h 32m 21.2s -13° 02' 55.80" 10:55:44 Imager sky position angle is 178.9 deg. 10:55:44 [sync] pointing model updated 10:55:44 Re-slew to target. 10:55:44 Start slew to NGC_6171... 10:55:48 (wait for slew to complete) 10:55:58 (slew complete) 10:55:58 Target is now centered. 10:55:58 (high cadence option, no web previews) 10:55:58 [flip check: Tn=360s HAc=-9447s GW=T HAz=-9077s DWz=T WF=no] 10:55:58 Imaging to NGC_6171_SG_20240222_105558_T3 10:55:58 Switching from SR to SG filter for imaging 10:55:58 Focus change of 50 steps required 10:56:00 (taking 60 sec. exposure, SG filter, binning = 2) 10:56:00 (using Normal readout mode) 10:56:00 (starting exposure) 10:57:08 (exposure complete) 10:57:10 (exposure complete and image downloaded) 10:57:12 Image finished 10:57:12 Plate-solve NGC_6171_SG_20240222_105558_T3 final image. 10:57:15 1450 image stars found 10:57:15 94 catalog stars found 10:57:16 Solved! 54 stars matched. 10:57:16 Average residual is 0.16 arcsec. 10:57:16 Pointing error is 0.142 arcmin @ angle 94.46 10:57:16 True focal length is 3463.5 mm. 10:57:16 True binned plate scales (arcsec/pix): H = 0.45 V = 0.45 10:57:16 True image center (J2000): 16h 32m 32.4s -13° 03' 14.26" 10:57:16 Imager sky position angle is 179.0 deg. 10:57:16 Image FWHM is 3.9 arcsec (8.75 pixels) 10:57:16 (avg FWHM = 4.09 arcsec) 10:57:16 Within max error tolerance, no re-slew needed. 10:57:16 (high cadence option, no web previews) 10:57:16 (aggregated exposure times, trying to autoguide) 10:57:16 (take guider image at initial interval 5 sec) 10:57:24 Multi-star guiding, MaxIm chose star at X=379.9975 Y=109.4037 10:57:24 (guide star SNR=17.5 X=380 Y=109) 10:57:25 (first exposure estimate 1 sec) 10:57:29 (guide star SNR=2.8 X=380 Y=108) 10:57:29 (final exposure for guiding 1.06 sec) 10:57:34 (guide star SNR=3.9 X=378 Y=107) 10:57:36 **Guider unexpectedly stopped while waiting for measurement 10:57:37 (take guider image at initial interval 1.06 sec) 10:57:42 Multi-star guiding, MaxIm chose star at X=51.00295 Y=65 10:57:42 ** This guide star disappeared or moved > 20 pixels. Can't continue. 10:57:42 **No usable stars in guider image; trying again at max guider exposure 10:57:55 Multi-star guiding, MaxIm chose star at X=1027.712 Y=944.8791 10:57:56 ** This guide star disappeared or moved > 20 pixels. Can't continue. 10:57:56 **No usable stars at max guider exposure interval, can't guide 10:57:56 **Autoguiding failed. ACP console log closed 22-Feb-2024 10:57:57 UTC