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Home > SVOM follow up > sb25102501

SVOM_FIELD00043

SVOM

43

/SVOM

sb25102501: Swift observation summary

Data analysed so far:

• ObsID: 03000152001 with 1.8 ks exposure.

About tiled field analysis.

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

• 3000152 — 1.8 ks of cleaned data taken between 2025-10-25 10:18:59 and 2025-10-25 12:04:26

Details of afterglow candidates

1 sources were found which matches the afterglow criteria.

#	RA (J2000)	Dec (J2000)	Err901	Detection Flag2	Rank3	Dist from SVOM/ECLAIRs pos	Exposure	Notes	Vizier
1 [details]	23h 50m 06.72s357.52801°	+26° 59′ 50.4″26.99733°	2.5′′ *	Good	2 (O)	2.5′	1.8 ks	The source is fading with 3.6-σ significance. Matches SIMBAD source: RX J2350.0+2659, 7.2″ away. Matches known X-ray source: LSXPS J235007.0+265950 (from LSXPS), 3″ away.
Mean XRT rate: 5.29 (±0.14) ct s-1 Peak XRT rate: 10.3 (±1.9) ct s-1 -5.41 σ above the catalogued flux from LSXPS. RASS PSPC 3-σ upper limit: 0.0×100 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 7.01 (±0.18) ct s-1 Peak XRT rate converted to PSPC: 13.7 (±2.5) ct s-1 Mean XRT flux: 1.81 (±0.05) ×10-10 erg cm-1s-1 Peak XRT flux: 3.5 (±0.7) ×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 SVOM/ECLAIRs pos	Exposure	Notes	Vizier
1 [details]	23h 50m 06.72s357.52801°	+26° 59′ 50.4″26.99733°	2.5′′ *	Good	2 (O)	2.5′	1.8 ks	The source is fading with 3.6-σ significance. Matches SIMBAD source: RX J2350.0+2659, 7.2″ away. Matches known X-ray source: LSXPS J235007.0+265950 (from LSXPS), 3″ away.
Mean XRT rate: 5.29 (±0.14) ct s-1 Peak XRT rate: 10.3 (±1.9) ct s-1 -5.41 σ above the catalogued flux from LSXPS. RASS PSPC 3-σ upper limit: 0.0×100 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 7.01 (±0.18) ct s-1 Peak XRT rate converted to PSPC: 13.7 (±2.5) ct s-1 Mean XRT flux: 1.81 (±0.05) ×10-10 erg cm-1s-1 Peak XRT flux: 3.5 (±0.7) ×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.

Image

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FITS image.

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Exposure map

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FITS exposure map.