Table 1 Observation log

From: Calcium in a supernova remnant as a fingerprint of a sub-Chandrasekhar-mass explosion

Number of observation

Date of observation

Exposure time (s)

Airmass

DIMM seeing at start (arcsec)

1

8 February 2021

2,700

1.364

0.68

2

8 February 2021

2,700

1.389

0.49

3

7 February 2021

2,700

1.367

0.51

4

7 February 2021

2,700

1.397

0.61

5

6 February 2021

2,700

1.384

0.37

6

5 February 2021

2,700

1.396

0.67

7

16 January 2021

2,700

1.402

0.52

8

12 January 2021

2,700

1.381

0.72

9

11 January 2021

2,700

1.395

0.60

10

10 January 2021

2,700

1.396

0.66

11

17 December 2020

2,700

1.365

0.53

12

17 December 2020

2,700

1.375

0.44

13

16 December 2020

2,700

1.375

0.56

14

15 December 2020

2,700

1.398

0.53

15

15 December 2020

2,700

1.375

0.45

16

14 December 2020

2,700

1.406

0.35

17

14 December 2020

2,700

1.370

0.61

18

13 December 2020

2,700

1.370

0.66

19

13 December 2020

2,700

1.394

0.32

20

13 December 2020

2,700

1.411

0.49

21

13 December 2020

2,700

1.365

0.52

22

12 December 2020

2,700

1.365

0.53

23

12 December 2020

2,700

1.495

0.46

24

12 December 2020

2,700

1.395

0.60

25

12 December 2020

2,700

1.369

0.48

26

10 December 2020

2,700

1.391

0.67

27

22 November 2020

2,700

1.364

0.42

28

20 November 2020

2,700

1.367

0.60

29

20 November 2020

2,700

1.369

0.47

30

15 November 2020

2,700

1.404

0.48

31

14 November 2020

2,700

1.441

0.47

32

14 November 2020

2,700

1.382

0.51

33

13 November 2020

2,700

1.419

0.50

34

13 November 2020

2,700

1.371

0.61

35

12 November 2020

2,700

1.385

0.51

36

12 November 2020

2,700

1.363

0.47

37

16 February 2020

2,700

1.456

0.39

38

23 December 2019

2,700

1.396

0.37

39

26 November 2019

2,700

1.371

0.36

  1. The nights when the target was observed and information about the quality of the observation. DIMM, Differential Image Motion Monitor.
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