night-report-page---20130402

Observers: Stefan Taubenberger, Stephan Hachinger

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

1st regular night of subrun (attn: there was also a "0th night").

All observations turned out to be good quality unless noted otherwise (**).

initial weather cond:         humidity ~30%, wind ~5m/s, clear sky

middle-of-night weather cond: humidity ~20%, wind ~8m/s, clear sky

late-night weather cond:      humidity ~20%, wind ~10m/s, slightly foggy

afternoon   PESSTO_calib and PESSTO_bias OBs executed

UT 22:50    start of night

UT 23:00    flats     evening sky                              UBVRi

** lost i-band flats due to end of twilight

UT 23:20    focus

--- seeing DIMM 0.7'' ---

UT 23:40    followup  OGLE 2012-SN-006          airmass=1.9    UBVRi

** check quality in U-band

--- seeing image 1.2...1.0'', DIMM 0.7'' ---

UT 00:20    classif.  PSNJ08175346+2328105      airmass=1.7    gr13            sl 1.0''

* used narrowslit acq., slit position: 992

--- seeing image 1.1...1.2'' ---

UT 00:40    followup  SN2013ai                  airmass=1.4    gr13            sl 1.0''

* used narrowslit acq., slit position: 992

--- seeing DIMM 0.9'' ---

UT 01:50    std       l745a                     airmass=1.2    gr11/16/13[x2]  sl 1.0''   

* used narrowslit acq., slit position: 992

--- seeing DIMM 0.8...0.9'', image (refocussed) 1.1'' ---

UT 02:30    followup  SN2012hs                  airmass=1.1    gr13            sl 1.0''

* used narrowslit acq., slit position: 992

--- seeing DIMM 0.8'', image 1.1'' ---

UT 04:30    classif.  SSS130329:111742-203116   airmass=1.1    gr13            sl 1.0''

* used narrowslit acq., slit position: 992

* spectrum stellar -> checked target acquisition: OK!

--- seeing DIMM 0.8'' ---

UT 04:45    classif.  CSS130401:125031+090817   airmass=1.3    gr13            sl 1.0''

* used narrowslit acq., slit position: 992

--- seeing DIMM 0.9'', image 0.9'' ---

UT 05:25    classif.  SNhunt178                 airmass=1.1    gr13            sl 1.0''

* used narrowslit acq., slit position: 992

--- seeing DIMM 0.8..1.2'', image 0.8'' ---

UT 05:45    classif.  LSQ13sj                   airmass=1.2    gr13            sl 1.0''

* used narrowslit acq., slit position: 992

* spectrum ~featureless -> checked target acquisition: OK!

--- seeing DIMM 0.9'' ---

UT 06:35    std       EG274                     airmass=1.1    gr11/16/13[x2]  sl 1.0''

* used narrowslit acq., slit position: 992

--- seeing DIMM 1.0'', image 1.0'' ---

UT 07:00    followup  SSS130221:133330-194457   airmass=1.2    gr11            sl 1.0''

** accidentially used no narrowslit acq. -> spectra checked -- seem ok (target in slit),

   but anyway of relatively low quality.

--- seeing image 0.8'' ---

UT 08:45    classif.  LSQ13rd                   airmass=1.2    gr13            sl 1.0''

* used narrowslit acq., slit position: 992

--- seeing DIMM 0.9'' ---

UT 09:25    followup  SN2009ip                  airmass~2      VR

* observed a bit into twilight. SN visible on all exposures.

UT 09:45    arclamps

UT 10:00    end of night