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Table 1

Details of the X-ray observations.

Identifier Date of observation start Central coordinates (J2000) Total/filtered exposure time (ks)a Off-axis Orbital
(date/MJD) RA Dec pn MOS1 MOS2 angleb phased

XMM-Newton

0690742501 (XMM1) 2012 Jul. 13/56121.23 05h06m40.9s −68°18m30s 24.2/19.4 26.7/20.1 26.7/20.2 9.5 0.603-0.612
0690742401 (XMM2) 2012 Sep. 09/56179.06 05h09m44.3s −68°21m13s 29.4/26.0 30.5/27.2 30.5/27.2 10.8 0.980–0.994

ROSAT Exposure time Count rate Off-axis Orbital
(ks) (10-3 cts s-1) angleb phase

rp300129n00 1992 Apr. 09/48721.07 05h08m00.0s −68°37m48s 3.7 3.2 ± 1.2 12.8 0.433–0.447
rp500037n00 1992 Apr. 09/48721.54 04h49m00.0s −68°43m48s 4.8 8.2 ± 1.6 19.7 0.452–0.618
rp500060n00 1992 Apr. 11/48723.20 05h05m43.2s −67°52m47s 3.9 <3.1c 34.8 0.520–0.662

Swift/XRT

00032578001 2012 Oct. 02/56202.00 05h07m51.3s −68°24m25s 1.1 <7.1c 0.923–0.942
00032578002 2012 Oct. 03/56203.61 05h07m49.2s −68°24m20s 3.5 <4.0c 0.989–1.001
00032578003 2012 Oct. 04/56204.81 05h07m55.4s −68°24m45s 1.0 <8.8 c 0.038–0.039
00032578004 2012 Oct. 10/56210.41 05h07m37.5s −68°21m33s 1.3 <11.4 c 0.269–0.275
00032578005 2012 Oct. 27/56227.71 05h07m50.6s −68°23m59s 1.0 12.5 ± 4.0 0.979–0.980
00032578006 2012 Oct. 28/56228.25 05h07m56.4s −68°24m 18s 5.2 9.6 ± 1.6 0.002–0.013
00032578007 2012 Oct. 29/56229.51 05h07m52.6s −68°23m 22s 0.3 <50.4c 0.054

Notes.

(a)

Performed duration (total) and useful (filtered) exposure times, after removing high background intervals.

(b)

Angle in arcmin between the central coordinates and the X-ray source. Swift observations were on-axis.

(c)

3σ upper limit.

(a)

Using ephemeris given in Eq. (1).

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