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