Open Access

Table A.1.

Log of the NTT observations.

Object BlackCAT ID Date Total exposure (h) Seeing (arcsec) Seeing cutoff (arcsec) Effective exposure (h)
MAXI J0637-430 68 15/03/2021 1.71 1.4 - 2.6 1.00 2.1
16/03/2021 1.70 0.9 - 1.5
23/03/2023 1.01 0.8 - 1.2
24/03/2023 0.36 1.7 - 2.8

MAXI J1348-630 67 15/03/2021 2.87 1.6 - 2.3 1.20 4.4
16/03/2021 2.74 1.0 - 2.1
23/03/2023 4.09 0.9 - 1.5

SWIFT J1539.2-6227 46 16/03/2021 4.18 1.1 - 1.7 1.25 0.5

XTE J1726-476 41 16/03/2021 1.05 1.1 - 1.5 1.30 1.3
23/03/2023 0.72 1.0 - 1.6
24/03/2023 2.92 1.2 - 2.3

4U 1755-338 4 23/03/2023 0.71 0.9 - 1.3 −− −−

MAXI J1803-298 70 23/03/2023 0.89 1.2 - 2.4 −− −−

XTE J1817-330 42 16/03/2021 1.04 1.1 - 1.7 1.25 0.15

XTE J1818-245 40 16/03/2021 1.40 1.1 - 1.5 1.25 0.6

MAXI J1828-249 57 23/03/2023 1.00 1.1 - 1.4 1.20 0.7

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