Night report 2018-12-30

Observers: Jonathan Pineda Garcia & Alessandro Razza

Support: Mariusz Gromadzki

TAT: Cosimo Inserra & Lluís Galbany

Calibrations:

SOFI:

biases

arcs (gr11, gr13 and gr16, arcs evening & morning)

SOFI:

flats JHK

specarc & specflat

Weather:

Start: Humidity 41.5, wind speed 2.4 m/s

Middle: Humidity 40.7, wind speed 3.9 m/s

End: Humidity 34.5, wind speed 1.6 m/s

Comments: Photometric night.

Instrument - SOFI

UT Target Type Setup airmass Seeing (1) notes

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

00:54 SN2018ivc Follow-up JHK 1.15 0.6 Started at twilight.

01:15 SN2018ivc Follow-up JHK 1.15 0.6

01:31 SN2018hle Follow-up JH 1.04 0.7

01:49 SN2018ibb Follow-up JHK 1.04 ---- Aborted. Drift in the tracking with the first four J-band images.

problems with the actuators during 50 minutes.

02:54 SN2018ibb Follow-up JHK 1.01 0.5 (2)

03:46 SN2018jmt Follow-up JHK 1.19 0.7

(1) Seeing in J-band (Dimm was always giving around 0.1 more).

(2) Template JHK_J_16_0__17_5 modified with sligthly longer total exposures to get better S/N (the SN had J=17.5, H=17.5).

Instrument - EFOCS

UT Target Type Setup airmass Seeing notes

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

05:18 SN2018koy class gr13 1.12 0.8

05:30 ZTF18acurjjx class gr13 --- 0.8 Aborted. Suspected position of a star.

05:54 AT2018kzr class gr13 1.18 0.8

06:22 AT2018kzt class gr13 --- 1.0 Aborted. No source at the position.

06:35 AT2018jpf class gr13 1.56 1.0

06:58 ZFT18adbhrjs class gr13 1.41 0.9

07:17 ZFT18adazgcu class gr13 1.40 0.9 Aborted. No source at the position.

07:26 AT2018kxo class gr13 1.32 0.8

07:48 ZTF18adazeua class gr13 1.51 1.0

08:11 ZTF18adazblo class gr13 1.61 1.3

Comments: Photometric night.