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