Open Access

Table 1.

X-ray observations of Swift J1658.2-4242 by Astrosat, Chandra, NuSTAR, and XMM-Newton (in Timing mode).

Instrument ObsID Start time (MJD) Exposure (ks) State QPO
NuSTAR 90401307002 58165.97658 33.337 LHS C

Astrosat T02_004T01_9000001910 58169.76510 9.961 HIMS C

NuSTAR 80301301002 58174.14666 31.537 Flip-flops C and A
XMM-Newton 0802300201 58174.25471 70.526 HIMS↔AS

NuSTAR 80302302002 58176.75478 24.025 Flip-flops C and A
XMM-Newton 0811213401 58176.79290 60.000 HIMS↔AS

Astrosat T02_011T01_9000001940 58180.78589 29.578 Flip-flops C and A
NuSTAR 80302302004 58181.31859 25.076 HIMS↔AS
XMM-Newton 0805200201 58181.33765 59.800

NuSTAR 80302302006 58188.16432 28.245 HIMS C
XMM-Newton 0805200301 58188.21508 51.200

NuSTAR 80302302008 58192.46058 26.714 HIMS C
XMM-Newton 0805200401 58192.54771 50.140

NuSTAR 80302302010 58205.01353 29.102 Late flip-flops No QPO
XMM-Newton 0805201301 58205.07581 50.900 HIMS↔SIMS

NuSTAR 90401317002 58235.95971 28.493 SIMS No QPO
Chandra 21083 58236.05065 30.080

Notes. Observations with overlapping exposures have been grouped together.

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