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Table 2.

Parameters describing the aperiodic variability of the optical and NIR time series of J1109.

Band Rms var. ampl. Skewness Kurtosis MAD (a)
(%) (× 1000)

2019 campaign (b)
uS 20 ± 3 –0.10 –0.32 8.1
gS 16.6 ± 0.7 0.21 1.03 1.7
rS 14.3 ± 0.3 0.04 0.02 1.3
iS 17.7 ± 0.5 0.41 0.004 2.3

2022 campaign

uS 14 ± 2 0.26 0.52 10.8
gS 19.0 ± 0.3 0.34 1.09 2.1
iS 18.2 ± 0.2 0.38 0.73 2.1
J 45.9 ± 0.5 –0.31 –0.87 22.2

Notes.

(a)

Median absolute deviation.

(b)

Excluding the flaring episode.

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