ACP console log opened 19-Feb-2024 02:13:48 UTC This is ACP version 9.0 (build 4, ACP 9 Production Release) Licensed to Arne Henden 02:13:48 This is AcquireScheduler V9.0.3 02:13:48 Custom image file path/names are in use 02:13:48 [PreFlip=300 PostFlip=300 AF=180 PU=60] 02:13:48 Hardware GEM pier side reporting is available. 02:13:49 Initializing AcquireSupport V9.0.3 02:13:49 Weather safe, server is Boltwood Cloud Sensor II 02:13:49 Telescope is ACP->TM61, driver V3 02:13:49 Dome is MaxDome 02:13:50 MaxIm DL is version 6.28 02:13:50 Imager is ASCOM 02:13:50 Using focus offsets and star mags from FilterInfo.txt 02:13:50 Selecting filter SG from previous ACP run at 20240219@021150 UTC 02:13:50 Imager readout modes: 02:13:50 0 is Fast 02:13:50 1 is Normal 02:13:50 Guider is SX Universal (no rotator) 02:13:50 Guider plate scale is 0.2 arcsec/pix. Guided dither with main imager pixels 02:13:50 Max unguided exposure 60 sec. 02:13:50 Guider is set to multi-star mode 02:13:50 (assuring that FocusMax is running now...) 02:13:50 Calculated unbinned plate scales (arcsec/pix): H = 0.23 V = 0.23 02:13:50 Calculated field of view (arcmin): H = 36.3 V = 24.3 02:13:50 Plate solving with GSC 1.1 (ok for wider fields) 02:13:50 Mount supports tracking rate offsets 02:13:50 ==== Starting target NGC_1904 ==== 02:13:50 ACPS Observation NGC_1904(1 of 1) 02:13:50 (belongs to Project AAVSO_Pgc_Welch_AUTO_ver2411, Plan NGC_1904) 02:13:50 (turning on sidereal tracking) 02:13:50 Pointing updates are enabled 02:13:50 Catalog Maximum Mag = 18.0 02:13:50 Start slew to NGC_1904... 02:13:52 (wait for slew to complete) 02:14:21 (slew complete) 02:14:21 [flip check: Tn=420s HAc=-1408s GW=T HAz=-988s DWz=T WF=no] 02:14:21 Updating pointing... 02:14:21 Switching from SG to SR filter for pointing exposure 02:14:21 Focus change of -50 steps required 02:14:23 (taking 10 sec. exposure, SR filter, binning = 4) 02:14:23 (using Fast readout mode) 02:14:23 (starting exposure) 02:14:45 (exposure complete) 02:14:48 (exposure complete and image downloaded) 02:14:49 Image finished 02:14:49 Plate-solve pointing image. 02:14:50 461 image stars found 02:14:50 299 catalog stars found 02:14:51 Solved! 97 stars matched. 02:14:51 Average residual is 0.3 arcsec. 02:14:51 Pointing error is 5.179 arcmin @ angle 79.68 02:14:51 True focal length is 3468.1 mm. 02:14:51 True binned plate scales (arcsec/pix): H = 0.89 V = 0.89 02:14:51 True image center (J2000): 05h 24m 33.5s -24° 30' 33.23" 02:14:51 Imager sky position angle is 178.7 deg. 02:14:51 [sync] pointing model updated 02:14:51 Re-slew to target. 02:14:51 Start slew to NGC_1904... 02:14:55 (wait for slew to complete) 02:14:59 (slew complete) 02:14:59 Target is now centered. 02:14:59 (high cadence option, no web previews) 02:14:59 [flip check: Tn=360s HAc=-1349s GW=T HAz=-1010s DWz=T WF=no] 02:14:59 Imaging to NGC_1904_SG_20240219_021459_T3 02:14:59 Switching from SR to SG filter for imaging 02:14:59 Focus change of 50 steps required 02:15:02 (taking 60 sec. exposure, SG filter, binning = 2) 02:15:02 (using Normal readout mode) 02:15:02 (starting exposure) 02:16:09 (exposure complete) 02:16:11 (exposure complete and image downloaded) 02:16:13 Image finished 02:16:13 Plate-solve NGC_1904_SG_20240219_021459_T3 final image. 02:16:16 1313 image stars found 02:16:16 165 catalog stars found 02:16:17 Solved! 83 stars matched. 02:16:17 Average residual is 0.19 arcsec. 02:16:17 Pointing error is 0.020 arcmin @ angle 192.77 02:16:17 True focal length is 3468.2 mm. 02:16:17 True binned plate scales (arcsec/pix): H = 0.45 V = 0.45 02:16:17 True image center (J2000): 05h 24m 11.1s -24° 31' 30.15" 02:16:17 Imager sky position angle is 178.7 deg. 02:16:17 Image FWHM is 3.2 arcsec (7.17 pixels) 02:16:17 (avg FWHM = 3.01 arcsec) 02:16:17 Within max error tolerance, no re-slew needed. 02:16:17 (high cadence option, no web previews) 02:16:17 (aggregated exposure times, trying to autoguide) 02:16:17 (take guider image at initial interval 5 sec) 02:16:25 Multi-star guiding, MaxIm chose star at X=1027.48 Y=945.2118 02:16:25 ** This guide star disappeared or moved > 20 pixels. Can't continue. 02:16:25 **No usable stars in guider image; trying again at max guider exposure 02:16:38 Multi-star guiding, MaxIm chose star at X=1249.614 Y=714.1013 02:16:39 (guide star SNR=11.1 X=1250 Y=714) 02:16:39 (first exposure estimate 2.7 sec) 02:16:45 (guide star SNR=3.5 X=1250 Y=714) 02:16:45 (final exposure for guiding 2.34 sec) 02:16:52 (guide star SNR=2.7 X=1252 Y=713) 02:16:52 **Guider unexpectedly stopped while waiting for measurement 02:16:53 (take guider image at initial interval 2.34 sec) 02:16:59 Multi-star guiding, MaxIm chose star at X=1252 Y=713 02:16:59 (guide star SNR=3.2 X=1252 Y=715) 02:16:59 (first exposure estimate 2.2 sec) 02:17:05 (guide star SNR=3.2 X=1253 Y=714) 02:17:05 (final exposure for guiding 2.03 sec) 02:17:11 (guide star SNR=3.2 X=1254 Y=715) 02:17:13 **Guider unexpectedly stopped while waiting for measurement 02:17:14 (take guider image at initial interval 2.03 sec) 02:17:19 Multi-star guiding, MaxIm chose star at X=1358.785 Y=471 02:17:20 ** This guide star disappeared or moved > 20 pixels. Can't continue. 02:17:20 **No usable stars in guider image; trying again at max guider exposure 02:17:33 Multi-star guiding, MaxIm chose star at X=1255.479 Y=717.0109 02:17:33 (guide star SNR=11.1 X=1255 Y=717) 02:17:33 (first exposure estimate 2.7 sec) 02:17:39 (guide star SNR=3.2 X=1256 Y=717) 02:17:39 (final exposure for guiding 2.5 sec) 02:17:46 (guide star SNR=3.0 X=1257 Y=718) 02:17:48 **Guider unexpectedly stopped while waiting for measurement 02:17:49 (take guider image at initial interval 2.5 sec) 02:17:54 Multi-star guiding, MaxIm chose star at X=75 Y=829 02:17:55 ** This guide star disappeared or moved > 20 pixels. Can't continue. 02:17:55 **No usable stars in guider image; trying again at max guider exposure 02:18:08 Multi-star guiding, MaxIm chose star at X=1258.016 Y=717.1707 02:18:08 (guide star SNR=11.4 X=1258 Y=717) 02:18:09 (first exposure estimate 2.64 sec) 02:18:15 (guide star SNR=3.7 X=1258 Y=715) 02:18:15 (final exposure for guiding 2.14 sec) 02:18:21 (guide star SNR=3.0 X=1255 Y=716) 02:18:33 **Guider waited for 10.7 sec and never got a measurement 02:18:35 **Autoguiding failed. ACP console log closed 19-Feb-2024 02:18:35 UTC