EP#01709248388: Swift observation summary

Mission:	Einstein Probe/WXT
Einstein Probe RA:	65.857°
Einstein Probe Dec:	+9.901°
Einstein Probe Err:	3.1 arcmin
T0:	2025-11-19 13:12:46 UT
Galactic:	184.64° -26.70°
Galactic N_H:	1.49× 10²¹ cm^-2

Sun distance:	165.64°
Sun angle:	11.26 [hr](West of Sun)
Moon distance:	157.01°
Visibility of this field.
First slew:	2025-11-19 15:06:42 UT
First observation:	2025-11-19 15:06:12 UT
First analysis:	2025-11-19 18:01:34 UT

Data analysed so far:

ObsID: 03000206001 with 2.1 ks exposure.

About tiled field analysis.

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

3000206 — 2.1 ks of cleaned data taken between 2025-11-19 15:06:41 and 2025-11-19 16:45:10

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]	04h 23m 30.21s65.87586°	+09° 54′ 28.8″9.90801°	2.7′′ ^*	Good	2 (O)	1.2′	2.1 ks	Matches SIMBAD source: RX J0423.5+0955B, 1.4″ away. Matches known X-ray source: 1RXS J042331.3+095444 (from ROSAT/RASSBSC), 21.964592868856″ away.
Mean XRT rate: 0.289 (±0.016) ct s^-1 Peak XRT rate: 0.46 (±0.10) ct s^-1 -4.03 σ above the catalogued flux from ROSAT/RASSBSC. RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.443 (±0.024) ct s^-1 Peak XRT rate converted to PSPC: 0.70 (±0.16) ct s^-1 Mean XRT flux: 7.6 (±0.4) ×10^-12 erg cm^-1s^-1 Peak XRT flux: 1.20 (±0.27) ×10^-11 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 2 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
1 [details]	04h 23m 30.21s65.87586°	+09° 54′ 28.8″9.90801°	2.7′′ ^*	Good	2 (O)	1.2′	2.1 ks	Matches SIMBAD source: RX J0423.5+0955B, 1.4″ away. Matches known X-ray source: 1RXS J042331.3+095444 (from ROSAT/RASSBSC), 21.964592868856″ away.
Mean XRT rate: 0.289 (±0.016) ct s^-1 Peak XRT rate: 0.46 (±0.10) ct s^-1 -4.03 σ above the catalogued flux from ROSAT/RASSBSC. RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.443 (±0.024) ct s^-1 Peak XRT rate converted to PSPC: 0.70 (±0.16) ct s^-1 Mean XRT flux: 7.6 (±0.4) ×10^-12 erg cm^-1s^-1 Peak XRT flux: 1.20 (±0.27) ×10^-11 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position
2 [details]	04h 23m 01.45s65.75604°	+10° 03′ 32.1″10.05893°	5.8′′ ^*	Good	3 (U)	11.2′	2.1 ks
Mean XRT rate: 1.6 (±0.4) ×10^-2 ct s^-1 Peak XRT rate: 1.6 (±0.4) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.07 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 8.4 (±2.1) ct s^-1 Peak XRT rate converted to PSPC: 8.4 (±2.1) ×10^-3 ct s^-1 Mean XRT flux: 1.6 (±0.4) ×10^-12 erg cm^-1s^-1 Peak XRT flux: 1.6 (±0.4) ×10^-12 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position

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Exposure map

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FITS exposure map.