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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
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