night-report-2014-02-27

Observers: Heather Campbell, Nadejda Blagorodnova

Support team: Morgan Fraser

TAT: Joe Anderson, Maria Teresa Botticella

Moon down during all night

Humidity 40%, wind below 5m/s all night, some low clouds in the horizon non-photometric

Seeing 0.5" at the beginning of the night, subsequently around 1".

23.45 Start of twilight

BR skyflats

00:03 L745a - spectrophotometric standard

00:34 LSQ12dlf

8x100s V-band. Seeing < 1", but images have between 1.1" and 1.4" because of airmass ~2.5

01:11 Image Analysis

Seeing around 0.8"

01:28 LSQ13ddu

12x200s B-band

02:09 OGLE-2014-SN-022

300s Gr#13 classification - Blue continuum. Narrow p-cygni Balmer lines consistent with redshift z=0.024. Approximate expansion velocity: -3114km/s.

02:15 OGLE-2014-SN-020

1500s Gr#13 classification - Looks like SN II at maximum, z=0.08. Approximate expansion velocity: -12904km/s

02:42 LSQ14xi

600s Gr#13 classification - SN Ia, -5d, z=0.05

02:59 LSQ14mo

3x1800s Gr#13

04:42 L745a - spectrophotometric standard

04:56 SN2013dg

12x200s in r and 12x200s in i. Seeing 0.8" - 1.2"

07:24 SN2013bb

4x300s in g. Seeing 0.8" - 1.0"

07:48 PS1-14on

900s Gr#13 classification - SN Ia at z=0.06, around max

08:05 PS1-14nv

600s Gr#13 classification - SN Ia at z=0.05, around max

08:20 OGLE-2014-SN-023

900s Gr#13 classification - Not clear. Emission at 8400A. Seems to be p-cygni, but is not sure. In case of H alfa, the object would be at z=0.28.

08:50 PS1-14op

Taken 2 aquisition images with 20 and 40s. The target was not visible, so we gave up.

08:56 EG274 - spectrophotometric standard

09:10 Twilight

09:25 LSQ14tc

600s Gr#13 classification- SN Ia z=0.05 around max

09:37 CSS140222-141104+253050

600s Gr#13 classification - SNID matches with SN Ib at z=0.04 or SN IIb post max at z=0.02.

09:56 UVi morning sky flats