Night Report 2018-12-09

Observers: Noel Castro Segura & Miika Pursiainen

Support: Charlotte Angus & Philip Wiseman

TAT:Regis Cartier & Lluís Galbany

Calibrations:

EFOSC:

biases

arcs (begin and end of EFOSC observations)

SOFI:

Flat JHK

arcs

Spec flats (morning)

Issues:

-NTT had minor issues during the daytime so not all calibrations could be performed during the day time and were pushed into morning

-During the first science exposure SOFI developed a CCD fault. However, this was not the standard one affecting only one quadrant, but affected all four quadrants instead.

Weather:

Start: Almost ideal, seeing 1-1.5", humidity 25%, wind <5m/s

Middle: Seeing 1-1.5"

End: Seeing ~1

Instrument - SOFI

UT Target Type Setup airmass Seeing notes

-----------------------------------------------------------------------------------------

00:35 SN2018ilu Follow JHK 1.3 1.3 First attempt had to be aborted due to SOFI CCD fault developed 1/3 into the OB

01:20 SN2018ilu Follow JHK 1.5 0.9 2nd attempt

01:50 SN2018jag Follow JHK 1.4 1.0-1.3

03:05 SN2018hle Follow JH 1.05 1.3

Instrument - EFOSC

UT Target Type Setup airmass Seeing notes

-----------------------------------------------------------------------------------------

03:50 GD71 STD gr13 1.5 1.3 Field used for focusing

04:30 SN2018gsk Follow gr13 1.3 1.4

06:00 AT2018jma Class gr13 1.4 1.1 Ia about week before peak

06:20 SN2017ijn Follow gr13 1.3 1.2

07:30 ZTF18acrultm Class gr13 1.4 1.1 Spectrum looks nebular

07:45 ATLAS18baew Class gr13 1.4 1.2 Ia around peak brightness

08:10 AT2018jny Class gr13 1.7 1.1 Ia prepeak

08:25 L745a STD gr13 1.1 1.0