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Table 1.

X-ray and space-based optical/UV observations of J0428−00.

Instrument ObsID Date (MJD) X-ray Exp. (in ks) Optical & UV filters (exp. in ks)
Swift 00013199001 58886 2.0 V(0.17), B(0.17), U(0.17), W1(0.3), M2(0.37), W2(0.67)
Swift 00013199003 58895 1.4 V(0.1), B(0.1), U(0.1), W1(0.20), M2(0.35), W2(0.44)
Swift 00013199004 58899 0.7 B(0.09), U(0.09), W1(0.26), W2(0.2)
Swift 00013199005 58901 2.1 V(0.17), B(0.17), U(0.17), W1(0.3), M2(0.5), W2(0.7)
Swift 00013199006 58907 1.9 V(0.15), B(0.15), U(0.15), W1(0.3), M2(0.47), W2(0.61)
eROSITA eRASS1 58911 0.3 (0.14) NONE
Swift 00013199007 58912 1.2 V(0.11), B(0.11), U(0.11), W1(0.21), M2(0.22), W2(0.42)
Swift 00013199008 58914 1.7 V(0.13), B(0.13), U(0.13), W1(0.26), M2(0.42), W2(0.53)
Swift 00013199009 58916 1.7 V(0.14), B(0.14), U(0.14), W1(0.28), M2(0.42), W2(0.56)
Swift 00013199010 58919 1.7 V(0.14), B(0.14), U(0.14), W1(0.28), M2(0.42), W2(0.55)
eROSITA eRASS2 59093 0.3 (0.14) NONE
eROSITA eRASS3 59263 0.3 (0.14) NONE
eROSITA eRASS4 59452 0.3 (0.14) NONE
Swift 00014932001 59550 5.7 V(0.29), B(0.29), U(0.29), W1(0.85), M2(2.3), W2(1.4)
XMM-Newton 0903991001 59651 21.0 V(3.5),B(3.5), W1(4.4), M2(4.4), W2(4.4)
Swift 00015274001 59786 5.5 V(0.43), B(0.43), U(0.43), W1(0.87), M2(1.44), W2(1.74)
XMM-Newton 0903991101 60017 40.0 V(4.4), B(4.4), U(4.4), M2(4.4)

Notes. Log of the space-based X-ray, optical, and ultraviolet observations with eROSITA, Swift (XRT and UVOT instruments), and XMM-Newton (EPIC-pn and OM). The exposure times listed in the table for Swift and XMM-Newton are good time intervals (GTI) after screening. For the eROSITA observations we report the GTI and the vignetting-corrected exposure (in parentheses). In this table, W1, M2 and, W2 are abbreviations for the UVW1, UVM2, and UVW2 filters, respectively.

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