Night report 2017-12-25

Observers: Charlotte Angus, Sadie Jones

TAT: Janet Chen, Lluís Galbany, Kate Maguire

Support team: Southampton

Calibrations: biases, dome arcs+flats (day), skyflats gr (eve), dome arcs (morn)

Conditions: Thin cloud between 00 and 03 UT, but clear later. Wind stable ~5m/s, seeing dropping from ~1.3 to sub 1" over the night

¡Feliz Navidad todos!

UT Target Type Comment

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00:42 VMA2 standard Seeing ~1.3"

01:20 AT2017imj followup 1x2700s gr13. Seeing 1.3"

02:25 AT2017ifu followup 1x2700s gr11. Seeing ~1"

03:15 AT2017ifu followup 1x2700s gr16. Seeing 1.2"

04:20 L745a standard Seeing 1.2"

04:44 AT2017hxz followup 1x3600s gr13. Seeing 1"

06:00 SN2017iuk followup 1x1800s gr11. Seeing 1.1"

06:40 SN2017iuk followup 1x1800s gr16. Seeing 0.9"

07:23 AT2017iyb classification SN-Ia, pre-max (-4d?)

07:48 AT2017iyd classification SN-IIb -8d

08:10 L745a standard -