ACP console log opened 27-Jan-2024 02:46:00 UTC This is ACP version 9.0 (build 4, ACP 9 Production Release) Licensed to Arne Henden 02:46:00 This is AcquireScheduler V9.0.3 02:46:00 Custom image file path/names are in use 02:46:00 [PreFlip=300 PostFlip=300 AF=180 PU=60] 02:46:00 Hardware GEM pier side reporting is available. 02:46:01 Initializing AcquireSupport V9.0.3 02:46:01 Weather safe, server is Boltwood Cloud Sensor II 02:46:01 Telescope is ACP->TM61, driver V3 02:46:01 Dome is MaxDome 02:46:01 MaxIm DL is version 6.28 02:46:01 Imager is ASCOM 02:46:01 Using focus offsets and star mags from FilterInfo.txt 02:46:01 Selecting filter SR from previous ACP run at 20240127@024234 UTC 02:46:01 Imager readout modes: 02:46:01 0 is Fast 02:46:01 1 is Normal 02:46:01 Guider is SX Universal (no rotator) 02:46:01 Guider plate scale is 0.2 arcsec/pix. Guided dither with main imager pixels 02:46:01 Max unguided exposure 60 sec. 02:46:01 Guider is set to multi-star mode 02:46:01 (assuring that FocusMax is running now...) 02:46:01 Calculated unbinned plate scales (arcsec/pix): H = 0.23 V = 0.23 02:46:01 Calculated field of view (arcmin): H = 36.3 V = 24.3 02:46:01 Plate solving with GSC 1.1 (ok for wider fields) 02:46:01 Mount supports tracking rate offsets 02:46:01 ==== Starting target NGC_1904 ==== 02:46:01 ACPS Observation NGC_1904(1 of 1) 02:46:01 (belongs to Project AAVSO_Pgc_Welch_AUTO_ver2411, Plan NGC_1904) 02:46:01 (turning on sidereal tracking) 02:46:01 Pointing updates are enabled 02:46:01 Catalog Maximum Mag = 18.0 02:46:01 Start slew to NGC_1904... 02:46:03 (wait for slew to complete) 02:46:54 (slew complete) 02:46:54 [flip check: Tn=420s HAc=-4890s GW=T HAz=-4470s DWz=T WF=no] 02:46:54 Updating pointing... 02:46:54 (taking 10 sec. exposure, SR filter, binning = 4) 02:46:54 (using Fast readout mode) 02:46:54 (starting exposure) 02:47:09 (exposure complete) 02:47:12 (exposure complete and image downloaded) 02:47:13 Image finished 02:47:13 Plate-solve pointing image. 02:47:14 446 image stars found 02:47:14 299 catalog stars found 02:47:15 Solved! 104 stars matched. 02:47:15 Average residual is 0.33 arcsec. 02:47:15 Pointing error is 4.518 arcmin @ angle 275.70 02:47:15 True focal length is 3465.3 mm. 02:47:15 True binned plate scales (arcsec/pix): H = 0.89 V = 0.89 02:47:15 True image center (J2000): 05h 23m 51.3s -24° 31' 02.00" 02:47:15 Imager sky position angle is 178.7 deg. 02:47:15 [sync] pointing model updated 02:47:15 Re-slew to target. 02:47:15 Start slew to NGC_1904... 02:47:19 (wait for slew to complete) 02:47:29 (slew complete) 02:47:29 Target is now centered. 02:47:29 (high cadence option, no web previews) 02:47:29 [flip check: Tn=360s HAc=-4875s GW=T HAz=-4495s DWz=T WF=no] 02:47:29 Imaging to NGC_1904_SG_20240127_024729_T3 02:47:29 Switching from SR to SG filter for imaging 02:47:29 Focus change of 50 steps required 02:47:32 (taking 60 sec. exposure, SG filter, binning = 2) 02:47:32 (using Normal readout mode) 02:47:32 (starting exposure) 02:48:39 (exposure complete) 02:48:42 (exposure complete and image downloaded) 02:48:43 Image finished 02:48:44 Plate-solve NGC_1904_SG_20240127_024729_T3 final image. 02:48:46 1276 image stars found 02:48:46 165 catalog stars found 02:48:47 Solved! 79 stars matched. 02:48:48 Average residual is 0.19 arcsec. 02:48:48 Pointing error is 0.103 arcmin @ angle 106.11 02:48:48 True focal length is 3466.7 mm. 02:48:48 True binned plate scales (arcsec/pix): H = 0.45 V = 0.45 02:48:48 True image center (J2000): 05h 24m 11.5s -24° 31' 30.71" 02:48:48 Imager sky position angle is 178.7 deg. 02:48:48 Image FWHM is 3.9 arcsec (8.62 pixels) 02:48:48 (avg FWHM = 2.43 arcsec) 02:48:48 Within max error tolerance, no re-slew needed. 02:48:48 (high cadence option, no web previews) 02:48:48 (aggregated exposure times, trying to autoguide) 02:48:48 (take guider image at initial interval 5 sec) 02:48:55 Multi-star guiding, MaxIm chose star at X=1222.753 Y=686.2536 02:48:56 (guide star SNR=6.5 X=1223 Y=686) 02:48:56 (first exposure estimate 2.3 sec) 02:49:02 (guide star SNR=3.1 X=1217 Y=681) 02:49:03 (final exposure for guiding 2.23 sec) 02:49:09 (guide star SNR=2.9 X=1201 Y=670) 02:49:23 **Guider waited for 11.15 sec and never got a measurement 02:49:24 (take guider image at initial interval 2.23 sec) 02:49:29 Multi-star guiding, MaxIm chose star at X=0 Y=0 02:49:30 ** This guide star disappeared or moved > 20 pixels. Can't continue. 02:49:30 **No usable stars in guider image; trying again at max guider exposure 02:49:43 Multi-star guiding, MaxIm chose star at X=1197.772 Y=664.792 02:49:44 (guide star SNR=9.0 X=1198 Y=665) 02:49:44 (first exposure estimate 3.33 sec) 02:49:51 (guide star SNR=4.3 X=1183 Y=655) 02:49:51 (final exposure for guiding 2.3 sec) 02:49:57 (guide star SNR=3.0 X=1179 Y=651) 02:50:11 **Guider waited for 11.5 sec and never got a measurement 02:50:12 (take guider image at initial interval 2.3 sec) 02:50:18 Multi-star guiding, MaxIm chose star at X=1052 Y=359 02:50:18 ** This guide star disappeared or moved > 20 pixels. Can't continue. 02:50:19 **No usable stars in guider image; trying again at max guider exposure 02:50:32 Multi-star guiding, MaxIm chose star at X=1170.652 Y=643.7082 02:50:32 (guide star SNR=10.0 X=1170 Y=644) 02:50:33 (first exposure estimate 2.99 sec) 02:50:39 (guide star SNR=3.3 X=1166 Y=640) 02:50:39 (final exposure for guiding 2.75 sec) 02:50:45 (guide star SNR=3.5 X=1164 Y=638) 02:50:47 **Guider unexpectedly stopped while waiting for measurement 02:50:48 (take guider image at initial interval 2.75 sec) 02:50:54 Multi-star guiding, MaxIm chose star at X=1164 Y=638 02:50:54 (guide star SNR=3.8 X=1156 Y=632) 02:50:55 (first exposure estimate 2.18 sec) 02:51:01 (guide star SNR=2.5 X=1146 Y=624) 02:51:01 (final exposure for guiding 2.6 sec) 02:51:07 (guide star SNR=3.3 X=1131 Y=614) 02:51:32 **Guider waited for 13 sec and never got a measurement 02:51:33 **Autoguiding failed. ACP console log closed 27-Jan-2024 02:51:33 UTC