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Night report 2020-01-16

Observers: Erez Zimmerman, Ido Irani, Steve Schulze
Support Team: Rachel Bruch, Ofer Yaron
TAT: Nancy Elias-Rosa, Giuliano Pignata, Morgan Fraser

Calibrations: 
EFOSC calibrations (dome flats and arcs) done in the afternoon. Clouds didn't allow us to take skyflats in the evening

Weather: 
Start: Humidity 49%, wind speed 4.4 m/s, seeing: ~1".
Middle: Humidity 10%, wind speed <7 m/s, seeing: ~1".
End : Humidity 28%, wind speed <3 m/s, seeing: ~1".

Comments:
Sky was partly cloudy. It affected several observations.

Observations:


UT  Target  Type  Setup  Seeing  Exptime  Notes
00:40 AT2019szu Follow-up gr16 ~1 1500 s
01:22 GD71 STD gr13+gr16 ~1
01:40 AT2020uk Classification gr13 ~1 900 s
02:02 AT2020cp Classification gr13 ~1 600 s
02:19 AT2019xvu Classification gr13 ~1 600 s
02:36 AT2020pm Classification gr13 ~1 1500 s
03:09 AT2020oc Classification gr13 ~1 600 s
04:18 AT2019xis Follow-up gr13 ~1 2700 s Problems with the telescope during the acquisition.
05:10 LTT3864 STD gr13+gr16 ~1 3x3x3200
05:28 SN2018ibb Follow-up riz ~1
06:10 AT2019uhm Classification gr13 ~1 1500 s
06:42 AT2020do Classification gr13 ~1 600 s
07:25 AT2020dq Classification gr13 ~1 900 s
07:25 AT2020dq Classification gr13 ~1 900 s
07:58 AT2019zcr Classification gr13 ~1 1500 s

At 8.21 we observed again LTT3864 with gr13 and gr16.

We attempted to observe the following targets but without success:
AT2020tk  Clouds led the fail.
AT2020yk  Not detected. Light curve consisted only of one data point. We wonder whether the transient is real.
AT2020uv  Wasn't detected in the acquisition image

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