Night Report 2018-12-02

Observers: Miika Pursiainen & Noel Castro Segura

Support: Claudia Gutiérrez & Tomás Müller Bravo

TAT: Joe Anderson & Janet Chen

Calibrations:

EFOSC:

biases

dome flat fields

arcs (evening and morning)

UVRi Sky Flats (morning), B band had to be aborted

Weather:

Start: Thin clouds, seeing 1.0-1.5 and varies a lot, windy, but telescope remains open

Middle: Thin clouds, seeing 0.7-1.3

End: Thin clouds, seeing 0.9-1.4

Problems during the night:

- There has been problems with the secondary mirror causing the image focusing to be take time. Sometimes the focus is not properly made causing the images to have a bit of coma.

Instrument - EFOSC

UT Target Type Setup airmass Seeing notes

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Image Focusing

00:30 SN2018jao class gr13 1.5 1.2 Ia few days before peak

00:45 SN2018fit follow gr13 1.5-1.8 1.3-1.5

02:30 VMA2 STD all 1.4 1.0

02:55 AT2018fyk follow gr11 1.5-2.5 1.1-1.02

Image Analysis

04:40 SN2018rw follow Vri 1.05-1.02 1.2 Telescope had to rotate 360 degrees during i band exposures (too close to culmination)

05:55 L745a STD all 1.1 0.9

06:25 SN2018hle follow gr13 1.4 1.3

06:55 AT2018hyz follow gr11+16 1.7 1.4

07:55 AT2018jdq class gr13 1.6 1.2 Transient not seen in the acquisition image

08:05 L745a STD all 1.1 1.1