ACP console log opened 17-Feb-2024 02:26:22 UTC This is ACP version 9.0 (build 4, ACP 9 Production Release) Licensed to Arne Henden 02:26:22 This is AcquireScheduler V9.0.3 02:26:22 Custom image file path/names are in use 02:26:22 [PreFlip=300 PostFlip=300 AF=180 PU=60] 02:26:22 Hardware GEM pier side reporting is available. 02:26:23 Initializing AcquireSupport V9.0.3 02:26:23 Weather safe, server is Boltwood Cloud Sensor II 02:26:23 Telescope is ACP->TM61, driver V3 02:26:23 Dome is MaxDome 02:26:23 MaxIm DL is version 6.28 02:26:23 Imager is ASCOM 02:26:23 Using focus offsets and star mags from FilterInfo.txt 02:26:23 Selecting filter V from previous ACP run at 20240217@022427 UTC 02:26:23 Imager readout modes: 02:26:23 0 is Fast 02:26:23 1 is Normal 02:26:23 Guider is SX Universal (no rotator) 02:26:23 Guider plate scale is 0.2 arcsec/pix. Guided dither with main imager pixels 02:26:23 Max unguided exposure 60 sec. 02:26:23 Guider is set to multi-star mode 02:26:23 (assuring that FocusMax is running now...) 02:26:23 Calculated unbinned plate scales (arcsec/pix): H = 0.23 V = 0.23 02:26:23 Calculated field of view (arcmin): H = 36.3 V = 24.3 02:26:23 Plate solving with GSC 1.1 (ok for wider fields) 02:26:23 Mount supports tracking rate offsets 02:26:23 ==== Starting target NGC_1904 ==== 02:26:23 ACPS Observation NGC_1904(1 of 1) 02:26:23 (belongs to Project AAVSO_Pgc_Welch_AUTO_ver2411, Plan NGC_1904) 02:26:23 (turning on sidereal tracking) 02:26:23 Pointing updates are enabled 02:26:23 Catalog Maximum Mag = 18.0 02:26:23 Start slew to NGC_1904... 02:26:25 (wait for slew to complete) 02:27:46 (slew complete) 02:27:46 [flip check: Tn=420s HAc=-1074s GW=T HAz=-654s DWz=T WF=no] 02:27:46 Updating pointing... 02:27:46 Switching from V to SR filter for pointing exposure 02:27:46 Focus change of -290 steps required 02:27:49 (taking 10 sec. exposure, SR filter, binning = 4) 02:27:49 (using Fast readout mode) 02:27:49 (starting exposure) 02:28:14 (exposure complete) 02:28:17 (exposure complete and image downloaded) 02:28:18 Image finished 02:28:18 Plate-solve pointing image. 02:28:19 703 image stars found 02:28:19 299 catalog stars found 02:28:20 Solved! 127 stars matched. 02:28:20 Average residual is 0.3 arcsec. 02:28:20 Pointing error is 3.189 arcmin @ angle 274.69 02:28:20 True focal length is 3466.4 mm. 02:28:20 True binned plate scales (arcsec/pix): H = 0.89 V = 0.89 02:28:20 True image center (J2000): 05h 23m 57.1s -24° 31' 13.33" 02:28:20 Imager sky position angle is 178.7 deg. 02:28:20 [sync] pointing model updated 02:28:20 Re-slew to target. 02:28:20 Start slew to NGC_1904... 02:28:24 (wait for slew to complete) 02:28:34 (slew complete) 02:28:34 Target is now centered. 02:28:34 (high cadence option, no web previews) 02:28:34 [flip check: Tn=360s HAc=-1039s GW=T HAz=-666s DWz=T WF=no] 02:28:34 Imaging to NGC_1904_SG_20240217_022834_T3 02:28:34 Switching from SR to SG filter for imaging 02:28:34 Focus change of 50 steps required 02:28:37 (taking 60 sec. exposure, SG filter, binning = 2) 02:28:37 (using Normal readout mode) 02:28:37 (starting exposure) 02:29:44 (exposure complete) 02:29:47 (exposure complete and image downloaded) 02:29:48 Image finished 02:29:49 Plate-solve NGC_1904_SG_20240217_022834_T3 final image. 02:29:51 1668 image stars found 02:29:51 165 catalog stars found 02:29:54 Solved! 68 stars matched. 02:29:54 Average residual is 0.2 arcsec. 02:29:54 Pointing error is 0.213 arcmin @ angle 101.17 02:29:54 True focal length is 3468.3 mm. 02:29:54 True binned plate scales (arcsec/pix): H = 0.45 V = 0.45 02:29:54 True image center (J2000): 05h 24m 12.0s -24° 31' 31.47" 02:29:54 Imager sky position angle is 178.7 deg. 02:29:54 Image FWHM is 2.8 arcsec (6.30 pixels) 02:29:54 (avg FWHM = 3.31 arcsec) 02:29:54 Within max error tolerance, no re-slew needed. 02:29:54 (high cadence option, no web previews) 02:29:54 (aggregated exposure times, trying to autoguide) 02:29:54 (take guider image at initial interval 5 sec) 02:30:02 Multi-star guiding, MaxIm chose star at X=1358.916 Y=470.833 02:30:02 ** This guide star disappeared or moved > 20 pixels. Can't continue. 02:30:03 **No usable stars in guider image; trying again at max guider exposure 02:30:16 Multi-star guiding, MaxIm chose star at X=708.2994 Y=456.7205 02:30:16 ** This guide star disappeared or moved > 20 pixels. Can't continue. 02:30:17 **No usable stars at max guider exposure interval, can't guide 02:30:17 **Autoguiding failed. ACP console log closed 17-Feb-2024 02:30:17 UTC