Night report page - 20130404

Observers: Stefan Taubenberger, Stephan Hachinger

Data reduction team: Nancy Elias-Rosa, Antonia Morales-Garoffolo

3rd regular night of subrun with EFOSC

Observations w/o problems unless noted otherwise (**).

initial weather cond: humidity ~20%, wind ~10m/s, clear sky

middle-of-night weather cond: humidity ~18%, wind ~10m/s, clear sky

late-night weather cond: humidity ~15%, wind ~8m/s, clear sky

afternoon PESSTO_calib and PESSTO_bias OBs executed

slit position - specpol OB executed

UT 23:00 start of night

UT 23:00 [specpstd HD 80558] gr13

** half-wave plate stuck

** removed half-wave plate manually in dome, lost ~50min until problem identified &

resolved

UT 23:55 [std l745a]

** did not find star due to proper motion. aborted.

UT 00.00 acq OGLE-2013-SN-016

** rotated by rotator offset angle = 160° (Tried different angles manually in

telescope control, starting from parallactic rot. offset angle = 167° and moved

guide probe around until finally a guide star was found. due to several error msgs

etc. etc. this all took 50 min.)

--- SEEING DIMM 0.8-1.2'', image 1.1'' ---

UT 00.50 followup OGLE-2013-SN-016 airmass=1.8 gr11 sl 1.0''

UT 02:30 classif. LSQ13sd airmass=1.7 gr13 sl 1.0''

* used narrowslit acq. template, slit pos y = 992

--- SEEING image 1.1'' ---

UT 03:15 std. LTT3864 airmass=1.0 gr11/16/13[x2] sl 1.0''

* used narrowslit acq. template, slit pos y = 992

UT 03:35 acq. SN2013ak and LSQ13th

** unclear problems with telescope / control sw, lost 40min

--- SEEING DIMM 0.7'', image 1.2'' ---

UT 04:15 classif. LSQ13th airmass=1.6 gr13 sl 1.0''

** used movetoslit acq. template to exclude that this causes the problems

--- focus sequence ---

--- SEEING image 1.0'' ---

UT 05:00 followup LSQ13fn airmass=1.2 gr13 sl 1.0''

* used narrowslit acq. template, slit pos y = 992

--- SEEING DIMM 0.8'', image 1.3'' ---

UT 07:20 followup LSQ13sj airmass=1.8 gr13 sl 1.0''

* used narrowslit acq. template, slit pos y = 992

--- SEEING DIMM 0.8'' ---

UT 09:20 class CSS130403:150213+103846 airmass=1.7 gr13 sl 1.0''

* used narrowslit acq. template, slit pos y = 992

--- SEEING DIMM 0.8'', image 1.1'' ---

UT 09:55 std EG274 airmass=1.1 gr11/16/13[x2] sl 1.0''

* used narrowslit acq. template, slit pos y = 992

* obs in twilight

UT 10:15 arclamps

UT 10:40 end of night