EP#01709178244: Swift observation summary

Mission:	Einstein Probe/WXT
Einstein Probe RA:	281.760°
Einstein Probe Dec:	-36.851°
Einstein Probe Err:	3.1 arcmin
T0:	2025-06-08 04:53:30 UT
Galactic:	358.88° -15.06°
Galactic N_H:	7.10× 10²⁰ cm^-2

Sun distance:	153.91°
Sun angle:	10.29 [hr] (West of Sun)
Moon distance:	57.03°
Visibility of this field.
First slew:	2025-06-08 06:25:11 UT
First observation:	2025-06-08 06:24:40 UT
First analysis:	2025-06-08 11:11:46 UT

Data analysed so far:

ObsID: 00019858001 with 1.7 ks exposure.

About tiled field analysis.

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

19858 — 1.7 ks of cleaned data taken between 2025-06-08 06:25:09 and 2025-06-08 08:14:41

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]	18h 46m 54.19s281.72578°	-36° 51′ 46.1″-36.86281°	2.6′′ ^*	Good	2 (O)	1.8′	1.7 ks	The source is 4.4-σ above the RASS limit.
Mean XRT rate: 0.88 (±0.03) ct s^-1 Peak XRT rate: 2.0 (±0.4) ct s^-1 RASS PSPC 3-σ upper limit: 0.09 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 1.14 (±0.04) ct s^-1 Peak XRT rate converted to PSPC: 2.6 (±0.6) ct s^-1 Mean XRT flux: 3.04 (±0.12) ×10^-11 erg cm^-1s^-1 Peak XRT flux: 7.0 (±1.5) ×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 3 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]	18h 46m 54.19s281.72578°	-36° 51′ 46.1″-36.86281°	2.6′′ ^*	Good	2 (O)	1.8′	1.7 ks	The source is 4.4-σ above the RASS limit.
Mean XRT rate: 0.88 (±0.03) ct s^-1 Peak XRT rate: 2.0 (±0.4) ct s^-1 RASS PSPC 3-σ upper limit: 0.09 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 1.14 (±0.04) ct s^-1 Peak XRT rate converted to PSPC: 2.6 (±0.6) ct s^-1 Mean XRT flux: 3.04 (±0.12) ×10^-11 erg cm^-1s^-1 Peak XRT flux: 7.0 (±1.5) ×10^-11 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position
2 [details]	18h 47m 09.73s281.79055°	-37° 01′ 05.7″-37.01825°	9.5′′ ^*	Good	3 (U)	10.1′	1.7 ks	Matches SIMBAD source: HD 173488, 6.6″ away.
Mean XRT rate: 1.3 (+0.4, -0.3) ×10^-2 ct s^-1 Peak XRT rate: 1.3 (+0.4, -0.3) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.12 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.014 (±0.004) ct s^-1 Peak XRT rate converted to PSPC: 0.014 (±0.004) ×10^-2 ct s^-1 Mean XRT flux: 1.03 (+0.33, -0.27) ×10^-12 erg cm^-1s^-1 Peak XRT flux: 1.03 (+0.33, -0.27) ×10^-12 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position
3 [details]	18h 47m 38.05s281.90855°	-36° 54′ 21.0″-36.90584°	6.6′′	Reasonable	3 (U)	7.9′	1.7 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: undetermined ct s^-1 Peak XRT rate converted to PSPC: undetermined ct s^-1 Products: Light curve

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FITS exposure map.