GRB 240824B: Swift observation summary

Mission:	Swift/BAT
GRB RA:	17.835°
GRB Dec:	+2.620°
GRB Err:	3.0 arcmin
T0:	2024-08-24 13:11:16 UT
Galactic:	132.87° -59.87°
Galactic N_H:	2.98× 10²⁰ cm^-2
Galactic E(B-V):	0.03730172

Sun distance:	133.89°
Sun angle:	9.05 [hr](West of Sun)
Moon distance:	21.35°
Visibility of this field.

Data analysed so far:

ObsID: 00021705001 with 4.1 ks exposure.

Source 1 has been manually confirmed as the GRB afterglow; data for this object are now available through the main GRB results area for this GRB.

About ToO analysis.

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Sources found so far

So far 4 sources have been found in the XRT data. 0 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from Swift/BAT pos	Exposure
1 [details]	01h 11m 20.82s17.83675°	+02° 36′ 36.4″2.61011°	4.5′′	Good	0.6′	4.1 ks
Mean XRT rate: 9.0 (+2.5, -2.1) ×10^-3 ct s^-1 Peak XRT rate: 1.9 (±0.5) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 2.7 (+0.8, -0.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 5.7 (±1.5) ×10^-13 erg cm^-1s^-1 Products: Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
2 [details]	01h 11m 12.60s17.80248°	+02° 44′ 20.4″2.73900°	6.1′′	Good	7.4′	4.1 ks
Mean XRT rate: 7.0 (±1.7) ×10^-3 ct s^-1 Peak XRT rate: 7.0 (±1.7) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 2.6 (±0.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 2.6 (±0.6) ×10^-13 erg cm^-1s^-1 Products: Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
3 [details]	01h 11m 22.31s17.84297°	+02° 41′ 10.2″2.68617°	6.7′′	Good	4.0′	4.1 ks
Mean XRT rate: 1.97 (+1.04, -0.79) ×10^-3 ct s^-1 Peak XRT rate: 1.97 (+1.04, -0.79) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 6.5 (+3.4, -2.6) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 6.5 (+3.4, -2.6) ×10^-14 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
4 [details]	01h 10m 32.31s17.63463°	+02° 35′ 34.4″2.59289°	9.5′′	Poor	12.1′	1.1 ks
Mean XRT rate: 5.6 (+4.1, -2.7) ×10^-3 ct s^-1 Peak XRT rate: 5.6 (+4.1, -2.7) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Products: 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.