Night report 2014-01-30

Observers: Giorgos Leloudas, Mattias Ergon

Support: Jesper Sollerman, Francesco Taddia, Joel Johansson

TAT on duty: Cosimo Inserra, Richard Scalzo

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WEATHER CONDITIONS:

start: wind 3.7 m/s; temp. 12.5 C; humid. 74%; Clear.

middle: wind 2.7 m/s; temp. 13.0 C; humid. 71%; Clear.

end: wind 4.8 m/s; temp. 12.3 C; humid. 67%; Clear.

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CALIBRATIONS

Afternoon:

EFOSC bias, arcs

Evening twilight:

flats : grz

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OBSERVATIONS

Target Type UT Filter/Grism Slit Seeing Comments

SN 2013ej Follow-up 00:35 g16 1.5 Started early cause target is setting. Airmass > 2.1

LSQ12dlf Follow-up 01:14 V 1.0 Seeing looks ok, so we go ahead with deep imaging

SN 2013gr Follow-up 02:27 g16 1

L745a Spec std 03:12 g11, g16, g13 1, 1.5 1.4 (DIMM) 1.6" in the acq. image

LSQ14mo Class 03:41 g13 1 1.5 (DIMM) SLSN-I ! Match to PTF09cnd at pre-max. Probably z~ 0.25.

CSS140128-

082352+043655 Class 04:25 g13 1 1.4 (DIMM) SN Ia @ z=0.06 and likely pre-max up to -6d

LSQ14mo Class 04:46 g11 1 1.1 Going deeper/bluer/higher-res. Mg II ~3510AA: z=0.253 !

SN 2013dg Follow-up 06:03 gri 1.1 Deep imaging. Seeing at 07:18 is 1" on the image.

Image analysis performed before i-band.

LTT3864 Spec std 08:34 g11, g16, g13 1, 1.5 1.0