EP#01709176612: Swift observation summary

Mission:	Einstein Probe/WXT
Einstein Probe RA:	186.249°
Einstein Probe Dec:	-52.275°
Einstein Probe Err:	3.1 arcmin
T0:	2025-05-22 05:56:51 UT
Galactic:	298.83° +10.39°
Galactic N_H:	1.39× 10²¹ cm^-2

Sun distance:	128.55°
Sun angle:	8.49 [hr] (East of Sun)
Moon distance:	124.06°
Visibility of this field.
First slew:	2025-05-22 07:06:45 UT
First observation:	2025-05-22 07:06:14 UT
First analysis:	2025-05-22 11:21:56 UT

Data analysed so far:

ObsID: 00019800001 with 2.0 ks exposure.

About tiled field analysis.

So far 1 fields have been scheduled for observations. Data are available and processed for 1 of these.

19800 — 2.0 ks of cleaned data taken between 2025-05-22 07:06:43 and 2025-05-22 08:38:53

Details of afterglow candidates

1 sources were found which matches the afterglow criteria.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Rank³	Dist from Einstein Probe/WXT pos	Exposure	Notes	Vizier
1 [details]	12h 25m 01.44s186.25602°	-52° 16′ 15.3″-52.27093°	2.5′′ ^*	Good	2 (O)	0.4′	2.0 ks	Matches SIMBAD source: WISEA J122501.45-521614.6, 1.5″ away. Matches known X-ray source: XMMSL3 J122501.2-521616 (from XMM-NEWTON/XMMSLEWCLN), 2.9263952473625″ away.
Mean XRT rate: 2.88 (±0.08) ct s^-1 Peak XRT rate: 5.3 (±1.1) ct s^-1 -4.53 σ above the catalogued flux from XMM-NEWTON/XMMSLEWCLN. RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 3.86 (±0.10) ct s^-1 Peak XRT rate converted to PSPC: 7.1 (±1.5) ct s^-1 Mean XRT flux: 9.45 (±0.26) ×10^-11 erg cm^-1s^-1 Peak XRT flux: 1.7 (±0.4) ×10^-10 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position

¹ Radius, 90% confidence.
² Indicates how likely the source is to be real. See the LSXPS documentation.
³ T=Transient Source, O=Outbursting known source, U=Uncatalogued X-ray source, K=Known X-ray source.
^* The position was enhanced using astrometry derived from the Swift UVOT.
^† The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.

Find an upper limit.

Sources found so far

So far 1 sources have been found in the XRT data. 1 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Rank³	Dist from Einstein Probe/WXT pos	Exposure	Notes	Vizier
1 [details]	12h 25m 01.44s186.25602°	-52° 16′ 15.3″-52.27093°	2.5′′ ^*	Good	2 (O)	0.4′	2.0 ks	Matches SIMBAD source: WISEA J122501.45-521614.6, 1.5″ away. Matches known X-ray source: XMMSL3 J122501.2-521616 (from XMM-NEWTON/XMMSLEWCLN), 2.9263952473625″ away.
Mean XRT rate: 2.88 (±0.08) ct s^-1 Peak XRT rate: 5.3 (±1.1) ct s^-1 -4.53 σ above the catalogued flux from XMM-NEWTON/XMMSLEWCLN. RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 3.86 (±0.10) ct s^-1 Peak XRT rate converted to PSPC: 7.1 (±1.5) ct s^-1 Mean XRT flux: 9.45 (±0.26) ×10^-11 erg cm^-1s^-1 Peak XRT flux: 1.7 (±0.4) ×10^-10 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position

Image

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FITS image.

Exposure map

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FITS exposure map.