----------------------------------------------------------------------- INSTRUMENT SETUP 2012A ----------------------------------------------------------------------- CONDITIONS: ANY CCD: FULL 13.7'x13.7' READOUT: ONE AMP GAIN INDEX: 3: Read Noise ~ 1.7 ADU = 3.1 e- FILTER SET: UBVRI CALIBRATION FRAMES: BIAS - 10 DOME FLAT R 10 ~20000 counts ----------------------------------------------------------------------- NOTES FOR TARGET FIELDS ----------------------------------------------------------------------- Our program is to observe bright Kuiper Belt objects (KBOs) to 0.01 arcsecond precision in order to obtain very precise astrometry. Some objects can only be observed at the very beginning or end of the night. The observations are simple direct imaging mostly in the R-band. Images of the KBOs should be no more than about 10 minutes each to prevent trailing losses of the moving KBOs. 15 arcsecond dithering between successive images is requested. ----------------------------------------------------------------------- NOTES FOR CALIBRATION FIELDS ----------------------------------------------------------------------- No standards are needed. Only flats and biases are needed in the R-band. Epoch is J2000 ----------------------------------------------------------------------- OBSERVING SEQUENCE ----------------------------------------------------------------------- KBO or Field #exposures Total time Priority x seconds ---- First Half of Night April 13 ---- (Night 2) Orcus20130423 5x45sec (30 minutes) 1 26375 5x600sec (75 minutes) 1 119951 5x600sec (75 minutes) 1 2003MW12 4x600sec (60 minutes) 1 Quaoar 4x600sec (60 minutes) 1 Priority: 1=Highest, 2=Medium, 3=Low R-band filter for all observations. Please dither about 15 arcseconds between images. The proper J2000 RA and Dec for each KBO for April 2012 is put below. Finder Charts are from the Aladin previewer and thus have *****North Up and East to the Left****** TARGET Starfield Orcus20130423 PRIORITY 1 COORDINATES 09 52 19 -07 22 10 (J2000) FINDER CHART http://aladin.u-strasbg.fr/java/alapre.pl?-c=09+52+19++++-07+22+10&button=N%26B AIRMASS minimum available -or- less than 2.2 FILTER(S) R INTEGRATION(S) 5 at 45 seconds TOTAL TIME 30 minutes NOTES Dither 15 arcseconds between images TARGET KBO 26375 PRIORITY 1 COORDINATES 11 42 06 -02 56 15 (J2000) FINDER CHART http://aladin.u-strasbg.fr/java/alapre.pl?-c=11+42+06++++-02+56+15&button=N%26B AIRMASS minimum available -or- less than 2.2 FILTER(S) R INTEGRATION(S) 5 at 600 seconds TOTAL TIME 75 minutes NOTES Dither 15 arcseconds between images TARGET KBO 119951 PRIORITY 1 COORDINATES 16 35 51 -22 16 55 (J2000) FINDER CHART http://aladin.u-strasbg.fr/java/alapre.pl?-c=16+35+51++++-22+16+55&button=N%26B AIRMASS minimum available -or- less than 2.2 FILTER(S) R INTEGRATION(S) 5 at 600 seconds TOTAL TIME 75 minutes NOTES Dither 15 arcseconds between images TARGET KBO 2003MW12 PRIORITY 1 COORDINATES 16 59 13 -02 08 45 (J2000) FINDER CHART http://aladin.u-strasbg.fr/java/alapre.pl?-c=16+59+13++++-02+08+45&button=N%26B AIRMASS minimum available -or- less than 2.5 FILTER(S) R INTEGRATION(S) 4 at 600 seconds TOTAL TIME 60 minutes NOTES Dither 15 arcseconds between images TARGET KBO Quaoar PRIORITY 1 COORDINATES 17 35 05 -15 32 10 (J2000) FINDER CHART http://aladin.u-strasbg.fr/java/alapre.pl?-c=17+35+05++++-15+32+10&button=N%26B AIRMASS minimum available -or- less than 2.5 FILTER(S) R INTEGRATION(S) 4 at 600 seconds TOTAL TIME 60 minutes NOTES Dither 15 arcseconds between images