ACP console log opened 16-Feb-2024 02:59:26 UTC This is ACP version 9.0 (build 4, ACP 9 Production Release) Licensed to Arne Henden 02:59:26 This is AcquireScheduler V9.0.3 02:59:26 Custom image file path/names are in use 02:59:26 [PreFlip=300 PostFlip=300 AF=180 PU=60] 02:59:26 Hardware GEM pier side reporting is available. 02:59:27 Initializing AcquireSupport V9.0.3 02:59:27 Weather safe, server is Boltwood Cloud Sensor II 02:59:27 Telescope is ACP->TM61, driver V3 02:59:28 Dome is MaxDome 02:59:28 MaxIm DL is version 6.28 02:59:28 Imager is ASCOM 02:59:28 Using focus offsets and star mags from FilterInfo.txt 02:59:28 Selecting filter B from previous ACP run at 20240216@025815 UTC 02:59:28 Imager readout modes: 02:59:28 0 is Fast 02:59:28 1 is Normal 02:59:28 Guider is SX Universal (no rotator) 02:59:28 Guider plate scale is 0.2 arcsec/pix. Guided dither with main imager pixels 02:59:28 Max unguided exposure 60 sec. 02:59:28 Guider is set to multi-star mode 02:59:28 (assuring that FocusMax is running now...) 02:59:28 Calculated unbinned plate scales (arcsec/pix): H = 0.23 V = 0.23 02:59:28 Calculated field of view (arcmin): H = 36.3 V = 24.3 02:59:28 Plate solving with GSC 1.1 (ok for wider fields) 02:59:28 Mount supports tracking rate offsets 02:59:28 ==== Starting target NGC_1904 ==== 02:59:28 ACPS Observation NGC_1904(1 of 1) 02:59:28 (belongs to Project AAVSO_Pgc_Welch_AUTO_ver2411, Plan NGC_1904) 02:59:28 (turning on sidereal tracking) 02:59:28 Pointing updates are enabled 02:59:28 Catalog Maximum Mag = 18.0 02:59:28 Start slew to NGC_1904... 02:59:29 (wait for slew to complete) 03:00:20 (slew complete) 03:00:20 [flip check: Tn=420s HAc=649s GW=T HAz=1069s DWz=T WF=no] 03:00:20 Updating pointing... 03:00:20 Switching from B to SR filter for pointing exposure 03:00:20 Focus change of -320 steps required 03:00:24 (taking 10 sec. exposure, SR filter, binning = 4) 03:00:24 (using Fast readout mode) 03:00:24 (starting exposure) 03:00:50 (exposure complete) 03:00:52 (exposure complete and image downloaded) 03:00:53 Image finished 03:00:53 Plate-solve pointing image. 03:00:54 280 image stars found 03:00:54 299 catalog stars found 03:00:55 Solved! 86 stars matched. 03:00:55 Average residual is 0.38 arcsec. 03:00:55 Pointing error is 1.324 arcmin @ angle 60.46 03:00:55 True focal length is 3464.4 mm. 03:00:55 True binned plate scales (arcsec/pix): H = 0.89 V = 0.89 03:00:55 True image center (J2000): 05h 24m 16.2s -24° 30' 49.82" 03:00:55 Imager sky position angle is 178.7 deg. 03:00:55 [sync] pointing model updated 03:00:55 Within max error tolerance, no re-slew needed. 03:00:55 Target is now centered. 03:00:55 (high cadence option, no web previews) 03:00:55 [flip check: Tn=360s HAc=684s GW=T HAz=1044s DWz=T WF=no] 03:00:55 Imaging to NGC_1904_SG_20240216_030055_T3 03:00:55 Switching from SR to SG filter for imaging 03:00:55 Focus change of 50 steps required 03:00:58 (taking 60 sec. exposure, SG filter, binning = 2) 03:00:58 (using Normal readout mode) 03:00:58 (starting exposure) 03:02:06 (exposure complete) 03:02:08 (exposure complete and image downloaded) 03:02:09 Image finished 03:02:09 Plate-solve NGC_1904_SG_20240216_030055_T3 final image. 03:02:12 822 image stars found 03:02:12 165 catalog stars found 03:02:13 Solved! 53 stars matched. 03:02:13 Average residual is 0.21 arcsec. 03:02:13 Pointing error is 1.385 arcmin @ angle 62.00 03:02:13 True focal length is 3466.5 mm. 03:02:13 True binned plate scales (arcsec/pix): H = 0.45 V = 0.45 03:02:13 True image center (J2000): 05h 24m 16.5s -24° 30' 49.99" 03:02:13 Imager sky position angle is 178.7 deg. 03:02:13 Image FWHM is 4.4 arcsec (9.91 pixels) 03:02:13 (avg FWHM = 3.46 arcsec) 03:02:13 Within max error tolerance, no re-slew needed. 03:02:14 (high cadence option, no web previews) 03:02:14 (aggregated exposure times, trying to autoguide) 03:02:14 (take guider image at initial interval 5 sec) 03:02:21 Multi-star guiding, MaxIm chose star at X=0 Y=0 03:02:22 **No stars at all found in guider image 03:02:22 **No usable stars in guider image; trying again at max guider exposure 03:02:35 Multi-star guiding, MaxIm chose star at X=1082.276 Y=666.6464 03:02:35 (guide star SNR=6.8 X=1083 Y=666) 03:02:36 (first exposure estimate 4.42 sec) 03:02:44 (guide star SNR=2.8 X=1081 Y=666) 03:02:44 (final exposure for guiding 4.67 sec) 03:02:52 (guide star SNR=2.7 X=1080 Y=666) 03:03:19 **Guider waited for 23.35 sec and never got a measurement 03:03:20 (take guider image at initial interval 4.67 sec) 03:03:27 Multi-star guiding, MaxIm chose star at X=489.9447 Y=725.0573 03:03:28 **No stars at all found in guider image 03:03:28 **No usable stars in guider image; trying again at max guider exposure 03:03:41 Multi-star guiding, MaxIm chose star at X=1040 Y=308 03:03:42 ** This guide star disappeared or moved > 20 pixels. Can't continue. 03:03:42 **No usable stars at max guider exposure interval, can't guide 03:03:42 **Autoguiding failed. ACP console log closed 16-Feb-2024 03:03:43 UTC