Night Report 2018-12-07

Observers: Noel Castro Segura & Miika Pursiainen

Support: Charlotte Angus & Philip Wiseman

TAT:Regis Cartier & Lluís Galbany

Calibrations:

EFOSC:

biases

dome flat fields

arcs (evening and morning)

Weather:

Start: Some high clouds, seeing was ~1.0 for first hour but then quickly rose to 3

Middle: High clouds -> Restricted to only observe targets close to zenith, seeing varies between 1.5 and 3

End: Finally the clouds disappear and seeing stays moderate (1-1.5)

Instrument - EFOSC

UT Target Type Setup airmass Seeing notes

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Image Focusing

00:15 VMA2 STD all 1.2 1.2

00:40 SN2018gjx Follow gr16 2.0 1.4 1 out of 2700s exposures finished. Poor seeing (~3) stopped us from trying another

02:05 ATLAS18ztl Class gr13 1.2 ~2 Ia prepeak. Note that slit is 1.5" due to poor seeing.

02:35 AT2018jkd Class gr13 1.3 1.7 Ia at peak brightness. Slit 1.5"

02:55 AT2018jjz Class gr13 1.1 1.4 Likely Ia-91bg like few weeks after peak. Slit 1.5 is"

03:30 AT2018jfz Follow gr11 1.2 1.4 Follow up of previously unclassified transient. New spectrum matches with IIP about week after peak. Slit 1.5"

04:20 L745a STD all 1.2 1.4

04:45 SN2018hti Follow gr11+16 1.2 1.3 Slit 1" as seeing has improved

05:55 SN2018htt Follow gr11+16 1.5 1.5

06:40 SN2018hfm Follow gr13 1.5 1.5

07:55 ZTF18acruldo Class gr13 1.5 1.2 Galactic source

08:20 L745a STD all 1.2 1.4