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Night Report 2018-04-21

Observers: Daniele Malesani and Kasper Elm Heintz
Support team: Paolo D'Avanzo and Giorgos Leloudas
TAT: Cristina Barbarino and Janet Ting-Wan Chen

Afternoon: PESSTO calibs and bias 

The intention was to continue the SofI observations from yesterday, but the instrument misbehaved once again so we switched to EFOSC around 02:45 UT.  We lost about 45 min due to this.
The night was otherwise very good with good seeing and clear conditions.

22:30 UT: Start of UBVRi
23:37 UT: Evening twilight 
09:45 UT: Morning twilight 

UT

Object

Type 

Setup

Slit

Exp. time (s)

Airmass

DIMM

Image quality (“)

Comments

22:57

L745a

Std. star

gr11,gr13,gr13+GG495,gr16

1+1.5

100,100,100,100

01.03

0.77

01.08


23:28

SN2017fzw

Follow-up

gr13

1

2x2400

01.25

0.79

0.86

Exposure includes image analysis

1:14

AT2018awy

Classification 

gr13

1

600




Very faint in acq. image, spectrum skipped

1:25









Switch from EFOSC to SofI

1:31









Exposure includes image analysis

1:43

SN2017ijn

Follow-up

phot JHK


60,144,160

01.11

0.86

0.86


1:51

SN2018ec

Follow-up

phot JHK



01.07

0.84

0.92


2:34









Attempt to fix SofI

2:44









Aborting SofI observations, switch back to EFOSC

2:55

AT2018aus

Classification 

gr13

1

900

01.05

0.79

0.96

Exposure includes image analysis

3:22

AT2018awj

Classification 

gr13

1

600

01.28

0.86

01.20


3:38

AT2018atb

Classification 

gr13

1

900

01.42

0.90

01.56


4:00

AT2018ati

Classification 

gr13

1

900

01.41

0.70

01.55


4:22

AT2018avp

Classification 

gr13

1

600

01.51

01.00

01.20


4:37

ASASSN-18fv

Follow-up

gr11,gr16,gr18,gr20

1

0.6,0.6,1.4,1.4

01.42

01.00

01.13


5:01

EG274

Std. star

gr11,gr13,gr13+GG495,gr16

1+1.5

60,60,60,60

01.12

01.01

01.27



EG274

Std. star

gr18,gr20

1

60,60





5:23

AT2018aws

Classification 

gr13

1

1800

1.60

01.05

01.56


6:01

AT2018avh

Classification 

gr13

1

300

01.48

01.17


Could not identify SN candidate in the acq. image

6:07

AT2018awt

Classification 

gr13

1

600

01.58

01.08

01.49


6:23

AT2018ayg

Classification 

gr13

1

600

01.55

0.90

01.32


6:40

AT2018axx

Classification 

gr13

1

900

01.21

0.78

01.20


7:01

AT2018avd

Classification 

gr13

1

600

01.30

0.80

01.44


7:19

AT2018ard

Classification 

gr13

1

600

01.31

0.75

01.15


7:36

AT2018awx

Classification 

gr13

1

600

01.31

0.72

01.18


7:52

AT2018axz

Classification 

gr13

1

1500

01.22

0.80

01.08


8:24

AT2018ave

Classification 

gr13

1

600

01.26

0.83

01.03

SN not visible, centred on galaxy nucleus

8:41

AT2018aun

Classification 

gr13

1

300

01.39

0.83

01.32


8:51

AT2018axw

Classification 

gr13

1

1500

01.43

0.83

01.56

Target not readily distinguished from host galaxy

9:25

AT2018auf

Classification 

gr13

1

900

1.78

0.83

01.44


9:48

LTT7379

Std. star

gr11,gr13,gr13+GG495,gr16

1

60,60,60,60

01.04

0.83

01.08





gr18,gr20

1

60,60





Comments