Night Report 2015-09-04

Observers: Tania Moraga, Cristina Romero-Cañizales, Lluís Galbany

TAT: Joe Anderson, Morgan Fraser

Data reducers: Thomas De Jaeger, Francisco Förster

Sept 4: SOFI & EFOSC2 night, photometry and spectroscopy

Clear sky at the beginning of the night with persistent cirrus towards the second half

Humidity < 15% / wind speed 5-15 m/s (high speeds only at the beginning of the night)

Moon: 52%

******* LOG *******

19:23 UT SOFI_FlatJHK calibration

20:50 UT EFOSC alignment

21:44 UT EFOSC bias

21:50 UT EFOSC arc

23:02 UT EFOSC skyflat BV (only a few frames are useful)

- Move to SOFI

Conditions at the beginning of the night:

Clear sky / DIMM seeing: 0.8" / Humidity < 15% / Wind speed ~ 15 m/s

--> we cannot observe southern than ~<-30deg in DEC (as planned with

SOFI)

- Moving back to EFOSC

00:02 UT SNhunt281 BVRi / seeing=0.86 & wind=12.3 m/s

- Back to SOFI

01:11 UT Feige110 --flux standard for spectroscopy

-- focus needed, so, rerun!

01:17 UT Feige110 --flux standard for spectroscopy

01:26 UT ASASSN-15oz BG & RG / seeing=0.87 & wind=11.7 m/s

-- re-arrange slit

02:02 UT ASASSN-15oz BG & RG / seeing=0.93 & wind=11.5 m/s

04:39 UT Telluric standard Hip094926 for ASASSN-15oz

04:46 UT ASASSN-15oz JHK / seeing=1.22 & wind=9.3 m/s

05:06 UT LSQ15adm JHK / seeing=0.92 & wind=8.3 m/s

- We start to see cirrus clouds in the all sky camera

06:20 UT SN2013fc JHK / seeing=0.82 & wind=8.5 m/s

- Move to EFOSC

07:18 UT OGLE15eo Gr#13 / seeing=1.06 & wind=7 m/s

07:58 UT VMA2 (spectroscopic standard) / seeing=1.12 & wind=6.1 m/s

08:15 UT ASASSN-14ha BVR gri / seeing=1.01 & wind=7.1 m/s

10:05 UT ASASSN-15ov Gr#13 / seeing=0.87 & wind=3.7 m/s

10:15 UT EFOSC Sky flats zU -rest of filters were aborted- / seeing=1.07 & wind=2.7 m/s