SARA-CT Report Archive

Date	Name	Affiliation	Other Observers	Instrument	Hours Observed	Hours Lost	Reason	Observing Program
04/15/2021	William Keel	University of Alabama	3 cats	Andor CCD	11	0	No problems to report	Dead quasar survey, H II regions, stray-light checkout. Focus=128300, seeming finicky tonight.
04/14/2021	Stephen Levine	Lowell Obs.	C. Zuluaga	Andor Camera	11	0	No problems to report	Outer solar system astrometry. No issues to report.
04/13/2021	Stephen Levine	Lowell Observatory	C. Zuluaga	Andor Camera	12	0	No problems to report	Outer solar system astrometry, and basic testing of new Andor camera to understand the performance in the various modes. Looks good.
04/11/2021	Ken Rumstay	VSU	None	CCD camera	9	0	No problems to report	AGN monitoring program No problems to report Optimum focus = 127800 at T = 16 Celsius Telescope pointing after slew not perfect, but target was always within CCD filed.
04/10/2021	Ross Silver	Clemson University	Dieter, Yong	CCD	11	0	No problems to report	Photometric redshifts of BL Lacs.
04/04/2021	XIANMING HAN	Butler Univ	Andrew Gebken	CCD	8.5	0	No problems to report	eclipsing binary
04/03/2021	XIANMING HAN	Butler University	Andrew Gebken	CCD	8	0.5	Clouds	eclipsing binary
04/02/2021	XIANMING HAN	Butler Univ	Andrew Gebken	CCD	8.5	0	No problems to report	eclipsing binary
04/01/2021	XIANMING HAN	Butler University	Andrew Gebken	CCD	8.5	0	No problems to report	Eclipsing binary
04/05/2021	William Keel	University of Alabama	3 cats	Andor CCD	11	0	No problems to report	Dead quasar survey, Andor CCD checkout. Focus 128000, guider focus 2000. Found potential gotcha when recovering from sequence abort - CCD came back in 3 MHz readout instead of previously set 1 MHz; bought myself some noise for the next hour or so. There is a diffuse pattern in darks at about 1 ADU/minute which looks like a light leak but persists at night so it seems to be an actual property of the chip.
03/31/2021	Todd Hillwig	Valparaiso University	None	Andor CCD	10	0.5	Equipment Failure	Telescope routinely pointed about 10 arcminutes to the north. This was corrected every time by simply hitting "Send" a second time, at which point the telescope pointed correctly with the target in the inner third of the chip.
03/26/2021	Gary Henson	ETSU	Rutherford	Andor CCD	0	6	Other	NOTE: this happened night of 4/28 so 4/28 report is really for 4/26, don't see way to edit old reports so submitting with wrong date for some completeness of logs. Power Failure at Dome just after flats, Power out 4+ hours but all systems came back up once power restored. Uncertain of failure cause and night half gone so closed up and quit early.
03/26/2021	Tom Rutherford	ETSU	Henson	CCD	6	0	Other	Asteroid light curve. Due to the filter wheel issue, I set wheel #2 to clear (where it was supposed to have been already, but wasn't) and moved wheel #1 to "R." Both wheels seemed to behave normally. Did no filter changes from this point onward-- everything else behaved properly and I had no problems with the scope except for a sudden jump toward the south by an arc minute or so (something that has happened to me before with CT) halfway through the run.
03/18/2021	James Webb	Florida International University	keslo Estil	CCD	4	0	Other	Imaging nebula and galaxies Tracking was horrible at 2 hours before transit. Not even the auto guider could correct guiding errors. Every where else, tracking was great.
03/21/2021	Yong Sheng	Clemson University	Alex McDaniel, Dieter Hartmann	g, r, i, z filters of CT	1	10	Equipment Failure	We can't observe because of the filter issue on the wheel 2. It won't change to the correct filter, and it got stuck.