Observers: Christoffer Fremling, Anders Nyholm TAT: Joe Anderson, Maria Teresa Botticella No clouds at the start of the night. Seeing kept dropping during the beginning of the night, stayed below 0.7'' for a considerable portion of the night. We began the night by using SOFI. Then we switched to EFOSC and finally back to SOFI. (Times are in UT) CALIBRATIONS: - 21:xy PESSTO_bias, PESSTO_calib - 23:43 Sunset - 00:37 Focus - 01:53 Switch to EFOSC - 07:55 Switch to SOFI - 09:xy Flatfields SOFI SCIENCE OBSERVATIONS: SOFI observations - 01:20 SN2013fc, Airmass=1.24, Seeing=0.9'' (dropped to 0.7'', rose to 1.1'') Comment: followup JHK dither --- Switch to EFOSC --- EFOSC observations - 02:13 OGLE-2014-SN-073, Airmass=1.20, Seeing=0.7'' Comment: followup BVRi photometry - 03:11 ASASSN-15cd, Airmass=2.05, Seeing=0.5'' Comment: classification gr13 300s - 03:25 OGLE-2015-SN-031, Airmass=1.66, Seeing=0.6'' Comment: classification gr13 2000s - 04:07 OGLE-2015-SN-035, Airmass=1.32, Seeing=0.4'' Comment: new attempt to classify, gr11 2700s and gr16 2700s - 05:09 PSNJ09204691-0803340, Airmass=1.08, Seeing=0.8'' Comment: followup gr11, 3200s - 06:25 SN2015D, Airmass=2.03, Seeing=0.6'' Comment: followup gr11 2200s and gr16 2200s --- Switch to SOFI --- SOFI observations - 08:10 SN2015D, Airmass=1.43, Seeing=0.5'' Comment: followup photometry JHK (on_off) SCIENCE CONCLUSIONS: With SOFI: - SN2013fc, JHK dither - SN2015D, JHK on_off With EFOSC: Followup - OGLE-2014-SN-073, photometry BVRi - PSNJ09204691-0803340, gr11 - SN2015D, gr11 and gr16 Classifications - ASASSN-15cd, gr13, Type Ia, z=0.037, age +3d - OGLE-2015-SN-031, gr13, Type Ia, z=0.125, age -8d - OGLE-2015-SN-035, new attempt to get a useful classification spectrum |