Night Report 2017-01-19

Observers: Jesper Sollerman, Francesco Taddia

TAT on duty: Morgan Fraser, Joe Anderson

Support team: Cristina Barbarino, Anders Nyholm, Emir Karamehmetoglu

Daytime calibrations:

EFOSC2: PESSTO_bias, PESSTO_calib

Twilight calibrations:

23:57 Bgi(and partially V and R) sky flats

00:32 image analysis

Weather: just one low cloud visible in the sky before starting the observations.

seeing at 0.7" at 01:00

seeing at 0.74" at 02:36

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

00:53 DES16E1gfm 00:33:51.24 -42:37:06.1 1 gr13 40 CLASSIFICATION. SN Ia at z=0.19, at peak

01:33 OGLE17aaj 01:56:24.92 -71:04:15.7 1 gr11 52 FOLLOW-UP. Broad He II in this possible TDE, good spectrum.

02:26 ASASSN-15og 03:21:07.43 -31:18:45.6 BVgri 1:14 FOLLOW-UP. Deep BgVRi images under good seeing conditions.

03:39 OGLE16dmu 04:48:26.34 -62:20:10.6 1 g13 52*1 FOLLOW-UP. Another 2700 sec exposure after the two taken on Jan. 17.

04:33 RU_152 07:29:56.00 -02:05:39.0 1 BgVRi 7 Photometric standard.

04:40 L745a 07:40:19.60 -17:24:42.0 1 gr11+gr16+gr13 15 Spectral standard.

05:00 AT2016jbu 07:36:25.96 -69:32:55.2 1 gr11+gr16 40 FOLLOW-UP. Very bright signal.

05:48 AT2017lb 10:12:49.86 -18:06:45.8 1 gr13 22 CLASSIFICATION. SN Ia at z=0.05 around peak.

06:10 AT2017la 10:48:26.56 -13:13:59.3 1 gr13 22 CLASSIFICATION. Type II SN, at least 10 days old, possibly a few weeks, known z=0.05278.

06:32 SN2016B 11:55:04.24 +01:43:06.7 1 gr13 52*2 FOLLOW-UP. Strong nebular lines, nice spectrum of this SN IIP.

08:18 AT2017kz 13:07:25.41 -01:19:23.4 1 gr13 22 CLASSIFICATION. SN Ia at z=0.09, after peak.

08:40 AT2017ln 11:38:33.78 +25:23:46.8 1 gr13 17 CLASSIFICATION. SN Ia at known z=0.025, before peak.

08:55 LTT3864 10:32:13.90 -35:37:42.4 1 gr11+gr16+gr13 15 Spectral standard.

09:10 PG1047 10:50:05.65 -00:01:11.3 BgVRi 7 Photometric standard.

09:17 end of the night