Observers: Paul Martini, Scott Adams, Roberta Humphreys Telescope Operator: Geno Bechetti Support Astronomer: Michelle Edwards Instrument: MODS1 Observing Log for 2013 May 1/2 Summary: Observed a spectrophotometric standard during evening twilight. Clear skies with seeing ~1" early on. Started UVa_n2460, but encountered telescope problems halfway through it that caused us to lose 2 hours. The rest of this program will need to be executed on a future night. Observed NGC5055_f1. Very poor seeing the second half of the night. Took some observations for SN2012ei. This program will also need to be completed on a future night. Observed a 2nd spectrophotometric standard during the morning twilight. Details: Starting calibrations - UT 11:00 execMODS NGC5055_f1.cal (run-time ~16 min) execMODS NGC5055_f2.cal (twice in the execution of these 2 scripts time-out errors were reported) execMODS NGC5055_f3.cal NOTE: due to the TCS link being down header information from the telescope is missing for these calibration scripts (NGC5055_f[1-3].cal) UT 11:50 venting the dome UT 12:30 Skies are clear and calm at twilight. Photometric. UT 12:40 0.9" seeing starting acquisition of spectrophotometric standard Feige 34 communication issue with TCS... lost 15 min UT 1:03 execMODS feige34_dualgrat.obs UT 1:20 acqMODS n2460.acq UT 1:30 execMODS n2460.obs seeing 1.1" UT 1:50 acqMODS n2460_sf.acq seeing degraded to 1.6" execMODS n2460_sf.obs UT 2:25 lost guiding & tracking 1/2 through the 2nd exposure - stopping exposure early (but some of the exposure still wasn't taken with the benefit of tracking) Major issues with the telescope -- everything is frozen Lost UT 2:25-4:25 (2 hrs) due to these problems Still need to complete 2x900s exposures for n2460_sf and all of ic2209. UT 4:25 acqMODS NGC5055_f1.acq 1.2" seeing UT 4:45 execMODS NGC5055_f1.obs UT 5:30 - seeing degraded to 1.7" UT 5:45 - seeing degraded to 2.1" UT 7:00 acqMODS SN2012ei.acq UT 7:30 seeing 1.5" execMODS SN2012ei.obs due to time constraints we only took 3 of the 8 images tonight (the other 5 will be taken another night) seeing degraded to 3" UT 8:40 guide star lost during the readout of the 3rd image started a new image without tracking... aborted restarting a new 4th image now that tracking is back seeing 2.6" aborting again... poor seeing and not enough time left Still need to complete 5x1200s to complete this script. UT 8:45 acqMODS bd332642.acq UT 8:55 execMODS bd332642_dualgrat.obs UT 9:45 Starting morning calibrations: execMODS bias8K.cal execMODS bias3K.cal execMODS M101F1.cal execMODS M101F3.cal execMODS EAGES_J1425.cal execMODS EAGES_365043.cal