ACP console log opened 14-Feb-2024 02:41:11 UTC This is ACP version 9.0 (build 4, ACP 9 Production Release) Licensed to Arne Henden 02:41:11 This is AcquireScheduler V9.0.3 02:41:11 Custom image file path/names are in use 02:41:11 [PreFlip=300 PostFlip=300 AF=180 PU=60] 02:41:11 Hardware GEM pier side reporting is available. 02:41:12 Initializing AcquireSupport V9.0.3 02:41:12 Weather safe, server is Boltwood Cloud Sensor II 02:41:12 Telescope is ACP->TM61, driver V3 02:41:12 Dome is MaxDome 02:41:12 MaxIm DL is version 6.28 02:41:12 Imager is ASCOM 02:41:12 Using focus offsets and star mags from FilterInfo.txt 02:41:12 Selecting filter B from previous ACP run at 20240214@023924 UTC 02:41:12 Imager readout modes: 02:41:12 0 is Fast 02:41:12 1 is Normal 02:41:12 Guider is SX Universal (no rotator) 02:41:12 Guider plate scale is 0.2 arcsec/pix. Guided dither with main imager pixels 02:41:12 Max unguided exposure 60 sec. 02:41:12 Guider is set to multi-star mode 02:41:12 (assuring that FocusMax is running now...) 02:41:12 Calculated unbinned plate scales (arcsec/pix): H = 0.23 V = 0.23 02:41:12 Calculated field of view (arcmin): H = 36.3 V = 24.3 02:41:12 Plate solving with GSC 1.1 (ok for wider fields) 02:41:12 Mount supports tracking rate offsets 02:41:12 ==== Starting target NGC_1904 ==== 02:41:12 ACPS Observation NGC_1904(1 of 1) 02:41:12 (belongs to Project AAVSO_Pgc_Welch_AUTO_ver2411, Plan NGC_1904) 02:41:12 (turning on sidereal tracking) 02:41:12 Pointing updates are enabled 02:41:12 Catalog Maximum Mag = 18.0 02:41:12 Start slew to NGC_1904... 02:41:14 (wait for slew to complete) 02:42:19 (slew complete) 02:42:19 [flip check: Tn=420s HAc=-908s GW=T HAz=-488s DWz=T WF=no] 02:42:19 Updating pointing... 02:42:19 Switching from B to SR filter for pointing exposure 02:42:19 Focus change of -320 steps required 02:42:23 (taking 10 sec. exposure, SR filter, binning = 4) 02:42:23 (using Fast readout mode) 02:42:23 (starting exposure) 02:42:49 (exposure complete) 02:42:51 (exposure complete and image downloaded) 02:42:52 Image finished 02:42:52 Plate-solve pointing image. 02:42:53 569 image stars found 02:42:53 299 catalog stars found 02:42:54 Solved! 120 stars matched. 02:42:54 Average residual is 0.32 arcsec. 02:42:54 Pointing error is 2.698 arcmin @ angle 277.65 02:42:54 True focal length is 3465.5 mm. 02:42:54 True binned plate scales (arcsec/pix): H = 0.89 V = 0.89 02:42:54 True image center (J2000): 05h 23m 59.3s -24° 31' 07.41" 02:42:54 Imager sky position angle is 178.7 deg. 02:42:54 [sync] pointing model updated 02:42:54 Re-slew to target. 02:42:54 Start slew to NGC_1904... 02:42:56 (wait for slew to complete) 02:43:06 (slew complete) 02:43:06 Target is now centered. 02:43:06 (high cadence option, no web previews) 02:43:06 [flip check: Tn=360s HAc=-873s GW=T HAz=-501s DWz=T WF=no] 02:43:06 Imaging to NGC_1904_SG_20240214_024306_T3 02:43:06 Switching from SR to SG filter for imaging 02:43:06 Focus change of 50 steps required 02:43:09 (taking 60 sec. exposure, SG filter, binning = 2) 02:43:09 (using Normal readout mode) 02:43:09 (starting exposure) 02:44:16 (exposure complete) 02:44:19 (exposure complete and image downloaded) 02:44:20 Image finished 02:44:20 Plate-solve NGC_1904_SG_20240214_024306_T3 final image. 02:44:23 1856 image stars found 02:44:24 165 catalog stars found 02:44:25 Solved! 77 stars matched. 02:44:25 Average residual is 0.17 arcsec. 02:44:25 Pointing error is 0.048 arcmin @ angle 146.92 02:44:25 True focal length is 3467.0 mm. 02:44:25 True binned plate scales (arcsec/pix): H = 0.45 V = 0.45 02:44:25 True image center (J2000): 05h 24m 11.2s -24° 31' 31.42" 02:44:25 Imager sky position angle is 178.7 deg. 02:44:25 Image FWHM is 3.0 arcsec (6.72 pixels) 02:44:25 (avg FWHM = 4.12 arcsec) 02:44:25 Within max error tolerance, no re-slew needed. 02:44:25 (high cadence option, no web previews) 02:44:25 (aggregated exposure times, trying to autoguide) 02:44:25 (take guider image at initial interval 5 sec) 02:44:32 Multi-star guiding, MaxIm chose star at X=1213.105 Y=681.4844 02:44:33 (guide star SNR=8.5 X=1213 Y=681) 02:44:33 (first exposure estimate 1.77 sec) 02:44:38 (guide star SNR=3.2 X=1213 Y=680) 02:44:38 (final exposure for guiding 1.68 sec) 02:44:43 (guide star SNR=3.1 X=1212 Y=681) 02:44:44 **Guider unexpectedly stopped while waiting for measurement 02:44:45 (take guider image at initial interval 1.68 sec) 02:44:50 Multi-star guiding, MaxIm chose star at X=1212 Y=681 02:44:50 (guide star SNR=2.9 X=1209 Y=677) 02:44:50 (first exposure estimate 1.73 sec) 02:44:55 (guide star SNR=3.4 X=1206 Y=677) 02:44:55 (final exposure for guiding 1.51 sec) 02:45:00 (guide star SNR=2.4 X=1202 Y=673) 02:45:13 **Guider waited for 10 sec and never got a measurement 02:45:14 (take guider image at initial interval 1.51 sec) 02:45:18 Multi-star guiding, MaxIm chose star at X=0 Y=0 02:45:19 ** This guide star disappeared or moved > 20 pixels. Can't continue. 02:45:19 **No usable stars in guider image; trying again at max guider exposure 02:45:32 Multi-star guiding, MaxIm chose star at X=1193.475 Y=664.3414 02:45:33 (guide star SNR=13.6 X=1192 Y=665) 02:45:33 (first exposure estimate 2.2 sec) 02:45:39 (guide star SNR=4.0 X=1189 Y=661) 02:45:39 (final exposure for guiding 1.66 sec) 02:45:44 (guide star SNR=3.1 X=1188 Y=661) 02:45:45 **Guider unexpectedly stopped while waiting for measurement 02:45:46 (take guider image at initial interval 1.66 sec) 02:45:51 Multi-star guiding, MaxIm chose star at X=1343.004 Y=369.9978 02:45:51 ** This guide star disappeared or moved > 20 pixels. Can't continue. 02:45:51 **No usable stars in guider image; trying again at max guider exposure 02:46:04 Multi-star guiding, MaxIm chose star at X=1178.152 Y=652.059 02:46:05 (guide star SNR=14.6 X=1177 Y=652) 02:46:05 (first exposure estimate 2.06 sec) 02:46:10 (guide star SNR=3.4 X=1171 Y=648) 02:46:11 (final exposure for guiding 1.81 sec) 02:46:16 ** This guide star disappeared or moved > 20 pixels. Can't continue. 02:46:16 **Guider unexpectedly stopped while waiting for measurement 02:46:17 **Autoguiding failed. ACP console log closed 14-Feb-2024 02:46:17 UTC