Night Report 2018-12-31

Observers:  Alessandro Razza &  Jonathan  Pineda Garcia

Support: Mariusz Gromadzki

TAT:  Cosimo Inserra & Lluís Galbany

Calibrations:

EFOCS:

biases

arcs gr11, gr13, gr16 (evening & morning)

arcs gr18 and gr20 (evening)

Weather:

Start: Humidity 37.8, wind speed 3.4 m/s.

Middle:  Humidity 36.9 ,wind speed 1.4 m/s.

End:  Humidity 41.2 ,wind speed 3.3 m/s.  Thin clouds.

Comments: Good seeing. Low thin clouds  from UT  05:45 up the end of the night. 

Instrument - EFOCS

UT            Target               Type                Setup                airmass             Seeing               notes

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

00:44   AT2018fyk    Follow-up    gr13         1.48         0.8

01:36   GD71         STD          gr11+13+16*  1.79         1.0

02:13   AT2018jmt    Follow-up    gr16         1.32         0.8

03:13   AT2018jmt    Follow-up    gr11         1.22         0.7

04:07   AT2018kzr    Follow-up    gr11         1.44         0.8       

04:56   AT2018kzr    Follow-up    gr11         1.27         0.8

05:44   AT2018kzr    Follow-up    gr16         1.18         1.0        

06:45   AT2018kzr    Follow-up    gr16         1.16         1.0          Exposure with passing thin clouds.

07:49   LT3864       STD          gr11+13+16** 1.02         1.0

08:03   AT2018hyz    Follow-up    gr11         1.17         1.0

* slit 1.0 - 1.5

**slit 1.0