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Table 1.

Log of photometric observations for the blazar OJ 287.

Date of observations Telescope Number of data points
(yyyy mm dd) B V R I
2019 02 15 C 0 1 6 1
2019 02 27 A 3 2 30 2
2019 03 01 A 2 9 27 1
2019 03 02 A 0 9 22 1
2019 03 03 A 1 17 16 2
2019 03 09 C 1 1 1 1
2019 03 11 C 1 1 1 1
2019 03 12 C 0 1 1 0
2019 03 13 C 1 1 1 1
2019 03 26 A 2 1 24 2
2019 04 05 C 1 1 17 1
2019 04 06 C 1 1 10 1
2019 04 07 C 1 2 20 2
2019 04 09 A 1 16 16 1
2019 04 10 A 2 10 10 2
2019 04 10 A 3 4 12 2
2019 04 11 A 2 12 14 2
2019 12 17 A 0 1 9 2
2020 01 03 A 2 2 120 2
2020 01 27 B 0 4 4 1

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