Night Report 2017-01-25

Observers: Jesper Sollerman, Francesco Taddia

TAT on duty: Michel Dennefeld, Nancy Elias-Rosa

Support team: Cristina Barbarino, Anders Nyholm, Emir Karamehmetoglu

Daytime calibrations:

EFOSC2: PESSTO_bias, PESSTO_calib

Twilight calibrations:

23:48 UVi sky flats completed, only 4 times in B band, only 3 times in R band.

00:28 image analysis

Weather: clouds cover the east part of the sky at the beginning of the night.

seeing at 1.3" during focusing

seeing at 1.1" at 03:10

seeing at 1.3" at 05:36

seeing at 0.9" at 06:15

UT/Target/RA/DEC/time spent(min)/slit/grism or filter /description

00:47 SN2016gkg 01:34:14.46 -29:26:25.0 60+16 1 UBVRi + gr11+gr16 FOLLOW-UP. SN detected in all the bands, and good spectra.

02:06 OGLE17aaj 01:56:24.92 -71:04:15.7 52 1 gr11 FOLLOW-UP. Spectrum with lower S/N as compared to the previous one taken in the first subrun, He II detected.

02:57 SN2016ija + SN2016ae 04:12:07.62 -32:51:10.9 53 1 gr16 FOLLOW-UP. We put the slit on both SN2016ija and SN2016iae, good spectra.

04:03 We attempted to classify AT2017jt, the possible SN was not detected in the acquisition image, we skipped it.

04:08 OGLE-2015-SN-043 05:29:42.71 -72:26:23.7 60+51 UBVRi FOLLOW-UP.

05:57 L745a 07:40:19.60 -17:24:42.0 16 1 gr11+gr16+gr13 Spectral standard.

06:13 AT2016jbu 07:36:25.96 -69:32:55.2 30 1 gr11+gr16 FOLLOW-UP. Very bright, nice spectra.

06:46 AT2017nw 11:16:12.61 +02:48:29.1 27 1 gr13 CLASSIFICATION. SN Ia at z=0.08 around peak.

07:16 AT2017hm 11:33:10.57 -10:13:18.4 50 1 gr11+gr16 FOLLOW-UP. Strong signal in both spectra.

08:12 SN2017hn 13:07:39.46 +06:20:14.6 50 1 gr11+gr16 FOLLOW-UP. Strong signal in both spectra.

09:07 LTT3864 10:32:13.90 -35:37:42.4 14 1 gr11+gr16+gr13 Spectral standard.

09:21 end of the night