CCD: FULL 13'x13'armin READOUT: QUAD GAIN INDEX: 4: Read Noise ~ 5.0 FILTER SET: UBVRI ***************************************************************************** TEMPLATE FOR 5 JUNE 2006 ----------------------------------------------------------------------- NOTES FOR OBSERVING ----------------------------------------------------------------------- There are three targets for this night (5 June 2006): An eclipse by U Sco centered on 00:46 UT, an eclipse by CI Aql centered on 04:23 UT, and Nereid monitoring for the remainder of the night. Given the eclipse times, the times of observation *must* go exactly as follows: UT 23:00 to UT 03:00 U Sco I-band 300-s JDmid=2453892.532 UT 03:00 to UT 05:20 CI Aql V-band 60-s JDmid=2453892.683 UT 05:20 to UT 10:20 Nereid V-band 900-s no eclipse For each of these three targets, the idea is to sit on them and take repeated exposures in the same filter as fast as possible. Take the observations through any conditions, as I'll be doing differential photometry with respect to nearby stars. Even a sporatic light curve through holes in clouds can return an eclipse time of some use. The finder chart for U Sco and CI Aql can be found from the Downes & Shara catalog at http://icarus.stsci.edu/~downes/cvcat/Forms/varcat_query.html Enter the name of the target (U Sco) in the box at upper left labelled "GCVS Name", click the "Submit" box on the upper right, then click on the name on the left. There is no finder chart for Nereid, so you'll just have to go by the coordinates given. I would like the coordinates to be placed slightly off-center (say, by a tenth of the FOV size) so that the target and comparison stars fall on the same quadrant, as a measure of convenience. At the start of the observations on each target, move to the target, take a focus (if needed), check the center from the finder chart (so U Sco and CI Aql does not fall on a bad column or join line), then start the sequence with the 'MORE' command. And stop when the time is up. This program should be very easy. ----------------------------------------------------------------------- NOTES FOR CALIBRATION FIELDS ----------------------------------------------------------------------- No calibration, the photometry will be all differential with respect to nearby stars. 1- Take 11 dome flats for each filter and 11 zeros ----------------------------------------------------------------------- DETAILS ON TARGET (J2000.0) ----------------------------------------------------------------------- TARGET U Sco PRIORITY 1 COORDINATES 16 22 30.7 -17 52 42 FINDER CHART http://icarus.stsci.edu/~downes/cvcat/Forms/varcat_query.html AIRMASS given times will give good airmass FILTER(S) I INTEGRATION(S) 300 seconds TOTAL TIME UT 5 June 23:00 to UT 6 June 03:00 {civil 5/6 June 2006} NOTES Do under any conditions, even only occassional cloud holes TARGET CI Aql PRIORITY 1 COORDINATES 18 52 03.6 -01 28 39 (J2000.0) FINDER CHART http://icarus.stsci.edu/~downes/cvcat/Forms/varcat_query.html AIRMASS given times will give good airmass FILTER(S) V INTEGRATION(S) 60 seconds TOTAL TIME UT 03:00 to 05:20 UT 6 June 2006 {civil 5/6 June 2006} NOTES Do under any conditions, even only occassional cloud holes TARGET Nereid PRIORITY 2 COORDINATES 21 28 49.19 -15 04 34.5 (J2000.0) FINDER CHART none, go by coordinates AIRMASS given times will give good airmass FILTER V INTEGRATIONS 900 seconds TOTAL TIME UT 05:20 to 10:20 UT 6 June 2006 {civil 5/6 June 2006} NOTES Do under non-optimal conditions (but not too bad)