Night report 2019-12-05

Observers: Thomas Wevers, Nada Ihanec
Support TeamMariusz Gromadzki, Emma Callis
TAT: Lluís Galbany, Michel Dennefeld, Shubham Srivastav, Phil Wiseman

Calibrations:
EFOSC daytime calibrations (biases, flats and arcs)
Sky flats grz (evening)

Weather: 
Start: Humidity 30%, wind speed 2 m/s, seeing: 1.2".
Middle: Humidity 30%, wind speed  3m/s , seeing: 0.7" 
End : Humidity 30%, wind speed  5m/s, seeing: 0.9"

Comments:
seeing started slightly variable but then got pretty stable.
moon precludes most important follow-up observations as well as standard star early in the night.

Observations:

UT Target Type Setup Seeing Exptime Notes


EFOSC


seconds
Seeing measured from (acquisition) images
  Sky flats
 CALIBgrz
   
00:15
image analysis





00:35
AT2019sox
follow-up
gr13
1.2"
2700s
high airmass but last chance to get it
01:30
AT2019pnl
follow-up
gr13
1.4"
2700s

02:20
AT2019lqi
follow-up
gr13
1.0"
2700s
featureless... low SNR
03:15
AT2018ibb
follow-up
g
1.0"
3x300s

03:35
image analysis




images in g band elongated - lots of imaging planned, so doing new image analysis
03:45
AT2018ibbfollow-upriz
0.7"
3x180s (riz)image quality much better now, seeing stable around 0.6-0.7"
04:25
AT2019jrj
follow-up
riz
0.7-1.0"
8x240s
seeing becoming a bit variable
06:25
AT2019wbx
classification
gr13
1.0"
900s
SNIa
06:50
AT2019qem
follow-up
gr11+gr16
0.9"
1500s + 1500s
did image analysis before because psf was elongated
08:20
AT2019vro
classification
gr13
1.1"
900s

08:45 L745a STD gr11+gr13+gr160.9"  
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