Open Access

Table A.1.

Optical photometry, apart from that of Swift. The B and V filters are in Vega magnitudes and the griz filters are in AB magnitudes.

Date MJD Epoch B (err) V (err) g (err) r (err) i (err) z (err) Telescope (Instrument)
(d)
2017-11-03 58060.9 33.5 13.85 (0.02) 13.75 (0.03) 14.04 (0.01) 13.81 (0.05) 14.05 (0.05) 14.34 (0.07) LT (IO:O)
2017-11-10 58067.0 39.6 - - - - - 14.30 (0.94) NOT (ALFOSC)
2017-11-14 58071.9 44.5 14.02 (0.05) 13.60 (0.03) 13.60 (0.06) 13.64 (0.04) 13.81 (0.05) 13.99 (0.04) LT (IO:O)
2017-11-16 58073.9 46.5 13.79 (0.06) 13.62 (0.04) 13.61 (0.03) 13.63 (0.04) 13.77 (0.05) 13.98 (0.06) LT (IO:O)
2017-11-17 58074.8 47.4 13.52 (0.09) 13.66 (0.08) 13.64 (0.06) 13.70 (0.07) 13.78 (0.05) - Asiago Schmidt (Moravian)
2017-11-18 58075.0 47.6 13.76 (0.03) 13.62 (0.06) 13.63 (0.05) 13.71 (0.04) 13.71 (0.05) 13.95 (0.05) NOT (ALFOSC)
2017-11-19 58076.9 49.5 - 13.60 (0.05) 13.60 (0.08) 13.56 (0.06) 13.82 (0.08) 13.95 (0.04) LT (IO:O)
2017-11-20 58077.9 50.5 13.85 (0.06) 13.63 (0.05) 13.63 (0.05) 12.46 (0.06) 13.72 (0.02) - NOT (ALFOSC)
2017-11-26 58083.8 56.4 13.80 (0.03) - - - - - Asiago Schmidt (Moravian)
2017-11-26 58083.9 56.5 - 13.65 (0.02) 13.64 (0.02) 13.64 (0.03) 13.74 (0.03) - Asiago Schmidt (Moravian)
2017-11-30 58087.9 60.5 13.91 (0.06) 13.67 (0.07) 13.70 (0.06) 13.68 (0.03) 13.66 (0.09) 13.87 (0.08) NOT (ALFOSC)
2017-12-03 58090.8 63.4 13.90 (0.04) 13.70 (0.05) 13.74 (0.03) 13.67 (0.03) 13.75 (0.03) - Asiago Schmidt (Moravian)
2017-12-05 58092.8 65.4 13.92 (0.03) 13.70 (0.03) 13.72 (0.02) 13.66 (0.02) 13.76 (0.03) - Asiago Schmidt (Moravian)
2017-12-07 58094.0 66.6 - - - 13.72 (0.02) 13.26 (0.01) - NOT (ALFOSC)
2017-12-09 58096.7 69.3 - 13.74 (0.03) 13.76 (0.02) 13.70 (0.02) 13.77 (0.03) - Asiago Schmidt (Moravian)
2017-12-09 58096.8 69.4 13.98 (0.03) - - - - - Asiago Schmidt (Moravian)
2017-12-18 58105.7 78.3 14.22 (0.06) - 13.97 (0.05) - - - Asiago Schmidt (Moravian)
2017-12-18 58105.8 78.4 - 13.90 (0.07) - 13.81 (0.06) 13.86 (0.05) - Asiago Schmidt (Moravian)
2017-12-23 58110.9 83.5 14.31 (0.03) 13.84 (0.13) 14.03 (0.04) 13.79 (0.03) 13.81 (0.07) 14.00 (0.07) NOT (ALFOSC)
2017-12-29 58116.8 89.4 14.52 (0.15) 13.99 (0.15) 14.24 (0.09) 13.98 (0.09) 13.88 (0.1) 14.12 (0.04) NOT (ALFOSC)
2018-01-10 58128.7 101.3 14.90 (0.06) 14.38 (0.05) 14.54 (0.05) 14.21 (0.05) 14.19 (0.05) - Asiago Schmidt (Moravian)
2018-01-12 58130.8 103.4 14.98 (0.13) 14.31 (0.15) 14.68 (0.06) 14.27 (0.04) 14.19 (0.02) 14.29 (0.04) NOT (ALFOSC)
2018-01-19 58137.8 110.4 - 14.49 (0.18) 14.79 (0.07) 14.39 (0.12) 14.40 (0.03) - NOT (ALFOSC)
2018-05-19 58257.4 230.0 15.84 (0.02) 16.16 (0.03) 16.26 (0.03) 15.54 (0.03) 15.99 (0.04) 15.50 (0.05) LCO (fl03)
2018-05-22 58260.4 233.0 16.78 (0.03) 16.22 (0.04) 16.29 (0.04) 15.58 (0.04) 16.05 (0.05) 15.52 (0.06) LCO (fl03)
2018-05-28 58266.1 238.7 16.82 (0.1) - - 15.61 (0.09) 16.11 (0.05) 15.50 (0.05) LCO (fl16)
2018-06-02 58271.4 244.0 16.84 (0.04) 16.31 (0.04) 16.41 (0.02) 15.68 (0.03) 16.18 (0.04) 15.64 (0.05) LCO (fl15)
2018-06-11 58280.1 252.7 16.91 (0.03) 16.33 (0.02) 16.46 (0.01) 15.68 (0.03) 16.13 (0.04) 15.76 (0.08) LCO (fl06)
2018-06-17 58286.3 258.9 16.92 (0.05) 16.21 (0.02) 16.54 (0.05) 15.70 (0.04) 16.17 (0.06) 15.71 (0.05) LCO (fl03)
2018-06-22 58291.3 263.9 16.99 (0.03) 16.42 (0.05) 16.55 (0.02) 15.82 (0.04) 16.26 (0.05) - LCO (fl15)
2018-06-27 58296.4 269.0 17.00 (0.05) 16.51 (0.05) 16.63 (0.04) 15.82 (0.04) 16.33 (0.06) - LCO (fl15)
2018-07-07 58306.1 278.7 17.08 (0.04) 16.61 (0.04) 16.73 (0.03) 15.90 (0.03) - - LCO (fl06)
2018-07-07 58306.2 278.8 - - - - 16.44 (0.05) - LCO (fl06)
2018-07-11 58310.3 282.9 17.17 (0.03) 16.65 (0.03) 16.73 (0.02) 15.92 (0.02) 16.47 (0.04) - LCO (fl03)
2018-07-14 58313.8 286.4 17.17 (0.02) 16.70 (0.03) 16.79 (0.02) 16.00 (0.03) 16.55 (0.06) - LCO (fl11)
2018-07-20 58319.8 292.4 17.20 (0.03) 16.75 (0.03) 16.83 (0.02) 16.05 (0.02) 16.58 (0.04) - LCO (fl12)
2018-07-22 58321.8 294.4 17.29 (0.04) 16.79 (0.04) 16.87 (0.02) 16.09 (0.03) 16.62 (0.05) - LCO (fl12)
2018-07-23 58322.6 295.2 17.19 (0.06) 16.77 (0.05) 16.89 (0.03) 16.08 (0.03) 16.61 (0.06) - LCO (fl12)
2018-07-25 58324.8 297.4 17.31 (0.03) 16.81 (0.03) 16.92 (0.02) 16.13 (0.02) 16.67 (0.05) - LCO (fl12)
2018-07-29 58328.7 301.3 17.35 (0.04) 16.86 (0.05) 16.95 (0.03) 16.19 (0.03) 16.69 (0.05) - LCO (fl12)
2018-08-04 58334.8 307.4 17.43 (0.03) 16.95 (0.04) 17.03 (0.03) 16.24 (0.03) 16.83 (0.06) - LCO (fl11)
2018-08-11 58341.3 313.9 17.50 (0.05) 17.04 (0.08) 17.10 (0.05) 16.35 (0.07) 17.03 (0.08) - LCO (fl03)
2018-08-18 58348.1 320.7 17.49 (0.04) 17.13 (0.04) 17.12 (0.03) 16.45 (0.03) 17.10 (0.04) - LCO (fl06)
2018-08-21 58351.5 324.1 17.64 (0.04) 17.21 (0.05) 17.18 (0.03) 16.46 (0.03) 17.18 (0.04) - LCO (fl12)
2018-09-01 58362.3 334.9 17.83 (0.06) 17.39 (0.06) 17.35 (0.05) 16.61 (0.04) 17.37 (0.06) - LCO (fl03)
2018-09-14 58375.7 348.3 17.89 (0.03) 17.54 (0.04) 17.47 (0.03) 16.83 (0.03) 17.56 (0.04) - LCO (fl12)
2018-09-28 58389.8 362.4 18.02 (0.04) 17.63 (0.05) 17.63 (0.03) 17.02 (0.04) 17.69 (0.05) - LCO (fl16)
2018-10-01 58392.1 364.7 18.20 (0.04) 17.76 (0.05) 17.83 (0.05) 17.21 (0.06) 17.55 (0.05) 17.09 (0.04) NOT (ALFOSC)
2018-10-14 58405.9 378.5 18.17 (0.05) 17.88 (0.08) 17.80 (0.05) 17.19 (0.04) 17.87 (0.07) - LCO (fl16)
2018-10-15 58406.0 378.6 - - - - 17.89 (0.06) - LCO (fl16)
2018-10-26 58417.2 389.8 18.30 (0.12) 18.05 (0.09) 18.03 (0.06) 17.40 (0.04) 17.99 (0.08) - LCO (fa03)
2018-10-29 58420.2 392.8 - 17.90 (0.08) 17.83 (0.04) 17.33 (0.1) 16.84 (0.77) - LCO (fa03)
2018-10-31 58422.2 394.8 18.54 (0.1) 18.15 (0.08) 18.02 (0.04) 17.46 (0.04) 18.16 (0.06) - LCO (fa03)
2018-11-04 58426.0 398.6 18.38 (0.07) 18.06 (0.06) 18.03 (0.04) 17.49 (0.05) 18.13 (0.08) - LCO (fa15)
2018-11-05 58427.4 400.0 18.24 (0.31) 18.24 (0.24) 17.94 (0.15) 16.63 (0.09) 18.11 (0.59) - LCO (fl11)
2018-11-16 58438.8 411.4 18.44 (0.17) - - - - - LCO (fa06)
2018-11-16 58438.9 411.5 - 18.25 (0.17) 18.30 (0.13) 17.74 (0.09) 18.15 (0.18) - LCO (fa06)
2018-11-20 58442.9 415.5 18.74 (0.06) 18.37 (0.07) 18.36 (0.07) 17.96 (0.04) 18.32 (0.03) 17.67 (0.05) NOT (ALFOSC)
2018-11-21 58443.9 416.5 18.49 (0.11) 17.99 (0.09) 17.97 (0.06) 17.64 (0.05) 18.15 (0.09) - LCO (fa06)
2018-11-24 58446.1 418.7 18.69 (0.08) 18.40 (0.06) 18.29 (0.05) - - - LCO (fa03)
2018-11-24 58446.2 418.8 - - - 17.77 (0.05) 18.45 (0.07) - LCO (fa03)
2018-11-27 58449.5 422.1 18.50 (0.2) 18.30 (0.05) 18.32 (0.03) 17.87 (0.03) 18.49 (0.06) - LCO (fl12)
2018-12-10 58462.1 434.7 18.86 (0.03) 18.55 (0.05) 18.47 (0.03) 17.99 (0.03) 18.58 (0.07) - LCO (fa03)
2018-12-21 58473.1 445.7 18.97 (0.1) 18.50 (0.08) 18.55 (0.07) 18.03 (0.05) 18.62 (0.1) - LCO (fa05)
2018-12-28 58480.9 453.5 18.97 (0.07) 18.64 (0.07) 18.67 (0.06) 18.30 (0.07) 18.54 (0.09) 18.19 (0.1) NOT (ALFOSC)
2019-06-05 58639.4 612.0 19.71 (0.1) 19.67 (0.12) 19.50 (0.11) 19.31 (0.12) 19.76 (0.37) - LCO (fa03)
2019-06-13 58647.2 619.8 19.83 (0.25) 19.76 (0.28) - - - - NOT (ALFOSC)
2019-06-20 58654.2 626.8 20.08 (0.16) 19.87 (0.07) 19.86 (0.04) 19.72 (0.05) 19.97 (0.12) 19.74 (0.1) NOT (ALFOSC)
2019-06-22 58656.8 629.4 20.06 (0.18) 19.77 (0.17) 19.37 (0.16) 19.59 (0.16) 19.25 (0.31) - LCO (fa11)
2019-07-12 58676.4 649.0 19.90 (0.08) 19.44 (0.1) 19.49 (0.08) 19.28 (0.15) 16.62 (0.76) - LCO (fa05)
2019-07-21 58685.2 657.8 20.25 (0.1) 19.97 (0.06) 20.04 (0.08) 19.84 (0.05) 20.11 (0.13) 20.03 (0.1) NOT (ALFOSC)
2019-07-24 58688.8 661.4 19.95 (0.11) 19.67 (0.12) 19.92 (0.07) 19.75 (0.08) 20.14 (0.2) - LCO (fa12)
2019-08-04 58699.8 672.4 20.24 (0.06) 20.15 (0.07) 20.06 (0.05) 19.89 (0.07) 20.17 (0.15) - LCO (fa11)
2019-08-05 58700.1 672.7 20.17 (0.29) 19.66 (0.18) 19.90 (0.06) 19.74 (0.09) 19.94 (0.12) 20.05 (0.12) NOT (ALFOSC)
2019-08-13 58708.0 680.6 19.98 (0.19) 19.55 (0.19) 19.88 (0.12) 19.26 (0.11) 19.71 (0.13) 19.53 (0.19) NOT (ALFOSC)
2019-08-17 58712.1 684.7 20.29 (0.27) 19.89 (0.28) 20.04 (0.19) 19.78 (0.23) 20.14 (0.34) 20.39 (0.8) NOT (ALFOSC)
2019-08-20 58715.2 687.8 19.96 (0.17) 19.96 (0.13) 19.87 (0.12) 19.68 (0.15) 20.06 (0.18) 20.23 (0.33) NOT (ALFOSC)
2019-08-20 58715.4 688.0 20.32 (0.33) 20.04 (0.27) 20.09 (0.23) 19.68 (0.18) 20.09 (0.34) - LCO (fa05)
2019-09-02 58728.3 700.9 20.29 (0.06) 20.07 (0.07) 20.01 (0.06) - - - LCO (fa15)
2019-09-02 58728.4 701.0 - - - 19.98 (0.07) 20.4 (0.15) - LCO (fa15)
2019-09-09 58735.0 707.6 19.91 (0.17) 19.26 (0.09) 19.78 (0.11) 18.89 (0.1) 19.16 (0.11) 19.09 (0.17) NOT (ALFOSC)
2019-09-16 58742.0 714.6 20.37 (0.16) 20.25 (0.14) 20.17 (0.13) 20.01 (0.15) 20.10 (0.28) 20.58 (0.3) NOT (ALFOSC)
2019-09-17 58743.2 715.8 20.70 (0.55) - - - - - LCO (fa05)
2019-09-17 58743.3 715.9 20.38 (0.44) 20.02 (0.33) 19.83 (0.23) 20.05 (0.48) 21.17 (1.6) - LCO (fa05)
2019-09-28 58754.3 726.9 20.39 (0.1) 20.14 (0.11) 20.06 (0.07) 19.88 (0.09) 20.58 (0.2) - LCO (fa03)
2019-10-09 58765.0 737.6 20.14 (0.35) 19.93 (0.67) 20.57 (1.44) 19.69 (0.75) 19.45 (0.6) - LCO (fa15)
2019-10-20 58776.2 748.8 19.89 (0.1) 19.36 (0.1) 19.65 (0.11) 19.63 (0.13) - - LCO (fa15)
2019-10-20 58776.3 748.9 - - - - 19.65 (0.16) - LCO (fa15)
2019-10-31 58787.0 759.6 19.97 (0.1) - - - - - LCO (fa03)
2019-10-31 58787.1 759.7 - 19.82 (0.13) 19.92 (0.09) 20.02 (0.09) 20.22 (0.16) - LCO (fa03)
2019-11-04 58791.0 763.6 20.20 (0.15) 19.98 (0.15) 20.33 (0.06) 20.09 (0.09) 19.92 (0.13) 20.02 (0.24) NOT (ALFOSC)
2019-11-11 58798.1 770.7 20.12 (0.31) - - - - - LCO (fa03)
2019-11-11 58798.2 770.8 - 19.55 (0.2) 19.72 (0.18) 19.42 (0.16) 20.29 (0.35) - LCO (fa03)
2019-11-17 58804.9 777.5 20.27 (0.16) 20.12 (0.15) 20.29 (0.06) 19.82 (0.1) 20.15 (0.11) 20.26 (0.21) NOT (ALFOSC)
2019-11-23 58810.0 782.6 20.29 (0.92) - - - - - LCO (fa07)
2019-11-23 58810.1 782.7 20.10 (0.22) 19.41 (0.13) 19.68 (0.1) 19.11 (0.15) 20.01 (0.51) - LCO (fa07)
2019-12-01 58818.9 791.5 20.71 (0.06) 20.42 (0.03) 20.44 (0.07) 20.26 (0.08) 20.00 (0.65) 20.72 (0.14) NOT (ALFOSC)
2019-12-03 58820.8 793.4 20.20 (0.17) 19.81 (0.17) - - - - LCO (fa14)
2019-12-03 58820.9 793.5 - - 19.87 (0.15) 19.37 (0.13) 19.69 (0.19) - LCO (fa14)
2020-01-15 58863.8 836.4 20.79 (0.11) 20.54 (0.06) 20.58 (0.06) 20.32 (0.15) 20.43 (0.28) 20.87 (0.15) NOT (ALFOSC)
2020-06-22 59022.2 994.8 20.98 (0.04) 20.77 (0.06) 20.65 (0.13) 20.52 (0.15) 21.04 (0.11) 21.40 (0.27) NOT (ALFOSC)
2020-07-25 59055.1 1027.7 20.95 (0.07) 20.62 (0.07) - - - - NOT (ALFOSC)
2020-07-25 59055.2 1027.8 21.09 (0.07) 20.82 (0.05) 20.64 (0.12) 20.59 (0.09) 21.06 (0.09) 21.07 (0.2) NOT (ALFOSC)
2020-08-21 59082.0 1054.6 21.02 (0.15) 20.77 (0.08) 20.70 (0.09) 20.62 (0.16) 21.04 (0.13) 21.22 (0.24) NOT (ALFOSC)
2020-09-14 59106.0 1078.6 21.14 (0.05) - - - - - NOT (ALFOSC)
2020-09-14 59106.1 1078.7 21.15 (0.06) 20.90 (0.05) 20.73 (0.16) 20.53 (0.19) 21.07 (0.1) 21.34 (0.2) NOT (ALFOSC)
2021-01-18 59232.8 1205.4 - - 20.87 (0.11) 20.82 (0.1) 21.18 (0.14) 21.34 (0.25) NOT (ALFOSC)
2021-01-18 59232.9 1205.5 - - - - 21.22 (0.14) - NOT (ALFOSC)
2021-07-06 59401.2 1373.8 21.19 (0.15) 20.90 (0.21) 20.88 (0.21) 20.90 (0.23) 21.40 (0.22) 21.47 (0.29) LRS (LRS)
2021-10-11 59498.1 1470.7 21.3 (0.05) 20.89 (0.13) 20.95 (0.13) 20.88 (0.12) 21.32 (0.11) - NOT (ALFOSC)
2021-11-12 59530.9 1503.5 - - 21.14 (0.13) - - - NOT (ALFOSC)
2021-11-13 59531.0 1503.6 21.41 (0.18) 20.85 (0.18) - 21.01 (0.11) 21.26 (0.16) - NOT (ALFOSC)
2022-07-07 59767.2 1739.8 - - - 21.16 (0.04) - - NOT (ALFOSC)
2022-07-16 59776.2 1748.8 21.34 (0.27) 20.85 (0.24) 21.04 (0.2) - - - NOT (ALFOSC)
2022-08-23 59814.2 1786.8 21.41 (0.08) 20.92 (0.13) 21.18 (0.11) - 21.40 (0.15) - NOT (ALFOSC)
2022-09-22 59844.0 1816.6 - - - 20.99 (0.11) - - NOT (ALFOSC)
2022-10-20 59872.9 1845.5 21.20 (0.12) 20.86 (0.11) 21.03 (0.12) 20.89 (0.18) 21.33 (0.15) - NOT (ALFOSC)

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