Subject: Re: [sdss3-25mlog 544] Re: (MJD 55990) guider problem on gimg-1131 From: paul harding Date: Wed, 7 Mar 2012 16:39:22 -0500 Sending EXPOSURE_FINISHED to Exposure time 5.0 1131 1 0.08 0.12 0.09 -0.12 237.0 442.8 233.3 447.2 = -219.7 -68.7 0003.9 0.962 2.395 195 21.36 400 1131 2 0.18 0.03 0.18 -0.05 173.3 306.2 165.9 307.6 = -18.6 -110.3 -006.4 0.819 3.261 246 21.11 0 1131 4 -0.15 0.16 -0.16 -0.15 229.2 92.1 234.8 97.5 = 133.5 -151.4 -003.9 1.629 5.270 1252 19.34 -400 1131 5 -0.10 -0.05 0.11 -0.01 239.0 274.0 234.8 273.8 = 285.8 -34.2 0203.4 0.901 2.302 174 21.49 0 1131 6 -0.04 0.09 0.04 0.09 236.4 190.1 234.5 187.0 = -128.8 -270.7 0175.9 0.912 3.719 197 21.35 -400 1131 7 -0.11 0.09 -0.03 -0.14 97.4 233.8 98.4 238.9 = -43.2 -232.0 0039.5 0.729 3.516 140 21.72 0 1131 8 -0.00 -0.05 0.03 -0.04 234.9 357.8 233.8 360.0 = 50.1 -217.3 0212.9 1.029 3.645 74 22.41 400 1131 9 0.15 -0.12 -0.19 -0.03 305.2 360.0 311.8 360.7 = 283.7 137.3 0151.8 0.770 3.366 163 21.56 400 1131 10 0.03 0.09 0.06 0.07 315.0 276.9 312.4 273.9 = 58.0 119.5 0122.8 0.401 4.536 8 24.88 0 1131 12 0.08 0.01 -0.08 0.01 309.9 188.1 313.1 187.4 = -165.6 166.7 0187.0 0.824 0.879 211 21.28 -400 1131 13 0.14 -0.13 0.03 -0.19 380.9 392.3 379.6 399.2 = -249.9 47.2 0237.2 0.770 5.197 -124 nan 0 1131 14 0.08 -0.06 -0.05 0.08 312.1 101.3 313.1 98.1 = 77.9 243.8 0088.9 0.595 1.515 194 21.37 -400 1131 15 0.02 -0.07 -0.02 -0.07 447.0 330.0 447.6 331.7 = -24.7 263.7 0177.8 0.962 5.131 162 21.57 0 1131 16 0.02 -0.03 -0.03 -0.01 309.9 447.0 311.1 447.4 = -97.9 227.1 0129.3 1.035 -107.357 227548 13.69 400 dRA,dDec,dRot -0.00031838478254 0.000309965976494 0.00529707894051 offsetRA, offsetDec, offsetRot 0.00019103087252 -0.000185979588423 = -0.00264853937551 FWHM: 1131, nan, 0, 0, nan TCCState.slewing False RMS guiding error=3D 2.569, n stars=3D 2 RMS_Az=3D nan, RMS_Alt=3D nan, = RMS_X=3D 1.874, RMS_Y=3D1.758 Card is too long, comment is truncated. bg=3D 3.0 bg=3D 3.0 dRA -0.00031838478254 dDec 0.000309965976494 dRot 0.00529707894051 dFocus -63.2097341355 dScale -0.000513695875194 filtRA 0.00019103087252 filtDec -0.000185979588423 filtRot -0.00264853937551 filtFocus 6.32097358704 filtScale 9.08762376639e-07 offsetRA 0.00019103087252 offsetDec -0.000185979588423 offsetRot -0.00264853937551 offsetFocus 6.32097358704 offsetScale 9.08762376639e-07 guideRMS 2.56921767118 nguideRMS 2 guideXRMS 1.87368526123 guideYRMS 1.75789163027 guideAzRMS nan guideAltRMS nan guideFitRMS nan nguideFitRMS nan decenterRA 0.0 decenterDec 0.0 decenterRot 0.0 decenterFocus 0.0 decenterScale 0.0 master.py 420 if fiber.flux 1 Make NFitScaleMin a command adjustable variable that defaults to 4 Should Rot corrections be a min of 3. 793 # Scale 794 # =20 795 dScale =3D b3/A[2, 2] ............................ Also add a similar parameter for rotation, need a min of 3 stars. And min number of stars for any correction even xyoffset. This is tocope with clouds. On Mar 6, 2012, at 5:15 PM, Constance Rockosi wrote: >=20 > Do we get any error messages from the guide camera that suggests it > knew it had lost its place in the readout or otherwise had trouble > with this frame? >=20 > --connie >=20 > On Tue, Mar 06, 2012 at 03:59:51PM -0500, paul harding wrote: >> This appears to have been a "one-off" case where the image on the = CCD was read incorrectly=20 >> by the guide camera. Everything is smeared diagonally by 45deg and = wrapped as though >> the number of pixels per row was off by a factor of 2. >>=20 >> The guider should not have made any guiding corrections on this image = because the >> guide fibers were not in the correct location on the image, and thus = there was mostly noise >> to guide on in the regions that were extracted as guide fibers. >> Only one fiber aperture happened to land where there happened to be = light. >>=20 >> The previous and following images are all ok >>=20 >> Paul >>=20 >> Attached is the image of the extracted fibers. >>=20 >>=20 >> !DSPAM:10028,4f567ae624230551626727! >=20 >=20 >>=20 >> On Mar 4, 2012, at 8:28 PM, Viktor Malanushenko wrote: >>=20 >>>> Cart 03, 5593-A, APOGEE & MARVELS, GSOGTF, sky photometric, seeing = =3D 1.5" >>>>=20 >>>> 07:55:28 apogee.expose=3DapRaw-04280063, 47, A, Object >>>> 08:03:51 apogee.expose=3DapRaw-04280064, 47, B, Object >>>=20 >>> At 08:05 UT we received a very unusual guider exposure=20 >>> /data/gcam/55990/gimg-1131.fits >>> After exposure guider calculated extremely large >>> scale change and other parameters.=20 >>>=20 >>> Below I have attached skrinshort three consecutive images = (gimg-1130, gimg-1131, gimg-1132),=20 >>> and a copy of the log. >>>=20 >>> During this time period, both the observer is not touched a computer = keyboard. >>>=20 >>>> 08:12:12 apogee.expose=3DapRaw-04280065, 47, B, Object >>>> 08:20:40 apogee.expose=3DapRaw-04280066, 47, A, Object >>>> 08:29:07 apogee.expose=3DapRaw-04280067, 47, A, Object >>>> 08:37:30 apogee.expose=3DapRaw-04280068, 47, B, Object=20 >>>> 08:45:51 apogee.expose=3DapRaw-04280069, 47, B, Object >>>> 08:54:19 apogee.expose=3DapRaw-04280070, 47, A, Object=20 >>>> 09:03:03 apogee.expose=3DapRaw-04280071, 5, A, DomeFlat >>>> 09:05:24 apogee.expose=3DapRaw-04280072, 10, A, Dark >>>> 09:07:12 apogee.expose=3DapRaw-04280073, 10, A, Dark >>>>=20 >>>=20 >>>=20 >>> Viktor Malanushenko >>>=20 >>> >>> _______________________________________________ >>> Message 541 of sdss3-25mlog - Logs of nightly APO activities. >>> sdss3-25mlog@sdss3.org >>> https://sdss3.org/mailman/listinfo/sdss3-25mlog >>=20 >>=20 >>=20 >> !DSPAM:10028,4f567ae624230551626727! >=20 >> _______________________________________________ >> Message 544 of sdss3-25mlog - Logs of nightly APO activities. >> sdss3-25mlog@sdss3.org >> https://sdss3.org/mailman/listinfo/sdss3-25mlog >>=20 >> !DSPAM:10028,4f567ae624230551626727! >=20 >=20 > --=20 >=20 > Associate Professor, Assoc. Astronomer > UC Santa Cruz, UCO/Lick Observatory > Office: 831 459 5246 > crockosi@ucolick.org > http://www.ucolick.org/~crockosi