EP#01709201209: Swift observation summary

Mission:	Einstein Probe/WXT
Einstein Probe RA:	30.039°
Einstein Probe Dec:	-8.686°
Einstein Probe Err:	3.1 arcmin
T0:	2025-09-04 03:24:02 UT
Galactic:	167.52° -65.42°
Galactic N_H:	1.99× 10²⁰ cm^-2

Sun distance:	133.36°
Sun angle:	8.86 [hr](West of Sun)
Moon distance:	87.61°
Visibility of this field.
First slew:	2025-09-04 04:30:38 UT
First observation:	2025-09-04 04:30:07 UT
First analysis:	2025-09-04 07:31:10 UT

Data analysed so far:

ObsID: 03000071001 with 1.4 ks exposure.

About tiled field analysis.

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

3000071 — 1.4 ks of cleaned data taken between 2025-09-04 04:30:35 and 2025-09-04 07:50:20

Find an upper limit.

Sources found so far

So far 9 sources have been found in the XRT data. 3 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Rank³	Dist from Einstein Probe/WXT pos	Exposure	Notes
1 [details]	02h 00m 12.73s30.05304°	-08° 40′ 52.1″-8.68114°	3.5′′	Good	4 (K)	0.9′	1.4 ks	The source is fading with 4.1-σ significance. Matches SIMBAD source: 1RXS J020013.6-084106, 0.7″ away. Matches known X-ray source: CXO J020012.8-084051 (from Chandra/2CSC), 1.0924941488624″ away.
Mean XRT rate: 1.95 (±0.08) ct s^-1 Peak XRT rate: 5.8 (±1.3) ct s^-1 0.00 σ above the catalogued flux from Chandra/2CSC. RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 2.59 (±0.11) ct s^-1 Peak XRT rate converted to PSPC: 7.7 (±1.7) ct s^-1 Mean XRT flux: 6.57 (±0.27) ×10^-11 erg cm^-1s^-1 Peak XRT flux: 2.0 (±0.4) ×10^-10 erg cm^-1s^-1 Products: Light curve \| Spectrum
2 [details]	01h 59m 48.84s29.95348°	-08° 49′ 52.0″-8.83112°	6.0′′	Good	4 (K)	10.1′	1.4 ks	Matches SIMBAD source: [GMV2014] MACS J0159.8-0849 S1, 9.9″ away. Matches known X-ray source: 1RXH J015949.2-084958 (from ROSAT/ROSHRI), 8.0499565048873″ away.
Mean XRT rate: 7.6 (±1.0) ×10^-2 ct s^-1 Peak XRT rate: 8.1 (±1.6) ×10^-2 ct s^-1 -0.22 σ above the catalogued flux from ROSAT/ROSHRI. RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.086 (±0.011) ct s^-1 Peak XRT rate converted to PSPC: 0.092 (±0.018) ×10^-2 ct s^-1 Mean XRT flux: 4.0 (±0.5) ×10^-12 erg cm^-1s^-1 Peak XRT flux: 4.3 (±0.8) ×10^-12 erg cm^-1s^-1 Products: Light curve \| Spectrum
3 [details]	02h 00m 25.12s30.10466°	-08° 31′ 52.5″-8.53126°	6.8′′ ^*	Good	3 (U)	10.1′	1.4 ks	This source may be affected by optical loading
Mean XRT rate: 3.7 (±0.7) ×10^-2 ct s^-1 Peak XRT rate: 5.5 (±1.4) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.057 (±0.011) ct s^-1 Peak XRT rate converted to PSPC: 0.085 (±0.022) ×10^-2 ct s^-1 Mean XRT flux: 7.4 (±1.4) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.10 (±0.28) ×10^-12 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position
4 [details]	02h 00m 29.66s30.12360°	-08° 31′ 11.5″-8.51985°	6.2′′	Good	3 (U)	11.2′	1.4 ks	This source may be affected by optical loading
Mean XRT rate: 4.9 (±1.4) ×10^-2 ct s^-1 Peak XRT rate: 4.9 (±1.4) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.084 (±0.024) ct s^-1 Peak XRT rate converted to PSPC: 0.084 (±0.024) ×10^-2 ct s^-1 Mean XRT flux: 1.2 (±0.3) ×10^-12 erg cm^-1s^-1 Peak XRT flux: 1.2 (±0.3) ×10^-12 erg cm^-1s^-1 Products: Light curve \| Spectrum
5 [details]	02h 00m 27.66s30.11524°	-08° 30′ 46.5″-8.51291°	6.4′′	Good	3 (U)	11.3′	905 s	This source may be affected by optical loading
Mean XRT rate: 5.6 (±1.5) ×10^-2 ct s^-1 Peak XRT rate: 5.6 (±1.5) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.097 (±0.025) ct s^-1 Peak XRT rate converted to PSPC: 0.097 (±0.025) ×10^-2 ct s^-1 Mean XRT flux: 9.4 (±2.5) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 9.4 (±2.5) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum
6 [details]	02h 00m 25.29s30.10537°	-08° 30′ 44.9″-8.51248°	9.0′′	Good	3 (U)	11.1′	905 s	This source may be affected by optical loading
Mean XRT rate: 2.5 (+0.9, -0.7) ×10^-2 ct s^-1 Peak XRT rate: 2.5 (+0.9, -0.7) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 4.1×10^-3 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.294 (+0.102, -0.085) ct s^-1 Peak XRT rate converted to PSPC: 0.294 (+0.102, -0.085) ×10^-1 ct s^-1 Mean XRT flux: 5.9 (+2.0, -1.7) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 5.9 (+2.0, -1.7) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum
7 [details]	02h 00m 28.92s30.12051°	-08° 31′ 49.0″-8.53027°	6.2′′	Poor	3 (U)	10.5′	1.4 ks	This source may be affected by optical loading
Mean XRT rate: 2.3 (±0.6) ×10^-2 ct s^-1 Peak XRT rate: 4.7 (±1.3) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.043 (+0.011, -0.010) ct s^-1 Peak XRT rate converted to PSPC: 0.087 (±0.025) ×10^-2 ct s^-1 Mean XRT flux: 4.4 (+1.2, -1.1) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 8.9 (±2.5) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum
8 [details]	02h 00m 27.46s30.11442°	-08° 32′ 06.5″-8.53514°	6.1′′	Poor	3 (U)	10.1′	1.4 ks	This source may be affected by optical loading
Mean XRT rate: 1.7 (+0.6, -0.5) ×10^-2 ct s^-1 Peak XRT rate: 1.7 (+0.6, -0.5) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.028 (+0.009, -0.008) ct s^-1 Peak XRT rate converted to PSPC: 0.028 (+0.009, -0.008) ×10^-2 ct s^-1 Mean XRT flux: 3.21 (+1.08, -0.90) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 3.21 (+1.08, -0.90) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum
9 [details]	02h 00m 39.10s30.16293°	-08° 45′ 53.0″-8.76472°	7.1′′ ^*	Good	4 (K)	8.7′	1.4 ks	Matches SIMBAD source: 6dFGS gJ020039.1-084555, 8.9″ away. Matches known X-ray source: CXO J020039.1-084555 (from Chandra/2CSC), 8.9785845231176″ away.
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 0.00 σ above the catalogued flux from Chandra/2CSC. RASS PSPC 3-σ upper limit: 0.0×10⁰ 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 Mean XRT flux: undetermined erg cm^-1s^-1 Peak XRT flux: undetermined 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.

Image

Select image style: Draggable PNG | JS9.

Magnify image and make scrollable?

FITS image.

Exposure map

Magnify exposure map and make scrollable?

FITS exposure map.