GRB 251014B: Swift observation summary

Mission:	Fermi/GBM
GRB RA:	14.595°
GRB Dec:	-35.580°
GRB Err:	3.0 arcmin
T0:	2025-10-14 04:47:21 UT
Galactic:	293.43° -81.42°
Galactic N_H:	1.94× 10²⁰ cm^-2
Galactic E(B-V):	0.01488888

Sun distance:	136.11°
Sun angle:	11.69 [hr](East of Sun)
Moon distance:	115.47°
Visibility of this field.

Data analysed so far:

ObsID: 00021863001 with 3.6 ks exposure.
ObsID: 00021863002 with 0.9 ks exposure.

About ToO analysis.

Find an upper limit.

Sources found so far

So far 4 sources have been found in the XRT data. 1 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from Fermi/GBM pos	Exposure	Notes
1 [details]	00h 58m 46.64s14.69435°	-35° 33′ 07.9″-35.55219°	6.2′′	Good	5.1′	4.5 ks
Mean XRT rate: 5.2 (±1.3) ×10^-3 ct s^-1 Peak XRT rate: 5.2 (±1.3) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.09 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 5.7 (±1.5) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 5.7 (±1.5) ×10^-13 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
2 [details]	00h 58m 18.89s14.57872°	-35° 34′ 04.2″-35.56782°	7.3′′	Good	1.1′	4.5 ks
Mean XRT rate: 2.67 (+1.09, -0.87) ×10^-3 ct s^-1 Peak XRT rate: 2.67 (+1.09, -0.87) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 6.1 (+2.5, -2.0) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 6.1 (+2.5, -2.0) ×10^-14 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
3 [details]	00h 58m 46.46s14.69357°	-35° 34′ 36.2″-35.57672°	7.9′′	Reasonable	4.8′	4.5 ks	Matches SIMBAD source: [VV98] J005846.6-353444, 7.1″ away.
Mean XRT rate: 1.5 (+0.9, -0.7) ×10^-3 ct s^-1 Peak XRT rate: 1.5 (+0.9, -0.7) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 8.4×10^-3 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 4.1 (+2.4, -1.8) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 4.1 (+2.4, -1.8) ×10^-14 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
4 [details]	00h 58m 28.28s14.61785°	-35° 31′ 59.2″-35.53311°	6.2′′	Good	3.0′	4.5 ks
Mean XRT rate: 1.9 (+1.0, -0.7) ×10^-3 ct s^-1 Peak XRT rate: 1.9 (+1.0, -0.7) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 6.2 (+3.3, -2.5) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 6.2 (+3.3, -2.5) ×10^-14 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]

¹ Radius, 90% confidence.
² Indicates how likely the source is to be real. See the 1SXPS documentation.
^* 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.

Exposure map

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FITS exposure map.