Night Report 2018-05-05

Observers:

Support Team:

TAT:

Twilight Start:

Twilight End:

UT

22:50

23:20

00:12

00:43

01:04

02:45

03:15

04:00

04:05

04:27

04:55

05:18

05:37

06:48

07:05

07:51

08:03

08:19

08:37

09:03

09:30

Twilight Start:

Observations Complete:

Owen McBrien

Erkki Kankare

Maria Teresa Botticella

22:04

Peter Clark

Kate Maguire

Kate Maguire

23:26

Object

Image analysis

SN2017fzw

L745a

AT2018beh

Swap to SOFI attempted

ASSASN18fv

SN2018atq

AT2018ys

AT2018bae

AT2018beg

EG274

AT2018bel

AT2017gge

MASTERJ150803.15270155

AT2018bdm

AT2018bdi

AT2018bbv

AT2018bee

AT2018bcb

AT2018bde

EG274

09:52

09:55

GR 11, GR 16, GR18,GR 20

GR13

Aquisition Only

GR13

GR13

GR11, GR13, G16, GR18, GR20

GR13

GR13

GR13

GR13

GR13

GR13

GR13

GR13

GR13

GR11, GR13, G16, GR18, GR20

GR13

GR11, GR13, G16, GR18, GR20

GR13

Setup

Daytime Calibrations:

Evening Calibrations:

Morning Calibrations:

Slit Width

1

1 & 1.5

1

Issue with mirror acutators

1

1

1

1

1

1 & 1.5

1

1

1

1

1

1

1

1

1

1 & 1.5

Flats, arcs, bias

UBGRi

Flats, arcs, bias

Exp. time(s)

2700

800

300

1800

1800

60

900

600

1000

600

3600

600

1800

300

300

600

1200

1200

1000

Last 2 frames of i aborted due to dark sky

Airmass

1.3

1.3

1.6

Telescope offline for ~1.5hr

1.3

1.7

2.2

1.5

1.1

1

1.6

1.68

1.1

1.45

1.5

1.4

1.4

1.6

1.6

1.4

DIMM

1

0.9

1.01

0.8

1

1.2

1.2

0.9

1

1

0.9

1.2

1

1.2

1.2

1.1

1.38

1.4

1.3

Weather:

Image Seeing

1.2

1

1.2

1

1.2

1.5

1.2

1.4

1.4

1.35

1.3

1.4

1.4

1.4

1.4

1.4

1.5

1.5

1.4

Variable seeing 0.9 - ~1.4, some thin clouds towards the end of the night

Comments

SNID fits are not great

NIR observations aborted

SN was not immediately obvious so we moved on, especially with increasing airmass

Blue continum with a few narrrow absorption feartures. No SNID match

SNID provides a range of options

Doubled exposure to combat clouds

Doubled exposure to combat clouds, includes focus check

Blue continum, no SNID match

No SNID match

SNID suggests Ic at low redshift

Slight overlap with twilight - 3 minutes

Classification

Ia

Ia

?

?

AGN?

Ia

?

Galactic?

Galactic\Ic?

II?

Ia