GRB 241209B: Swift observation summary

Mission:	SVOM/ECLAIRs
GRB RA:	194.983°
GRB Dec:	+76.222°
GRB Err:	4.7 arcmin
T0:	2024-12-09 03:56:20 UT
Galactic:	122.26° +40.90°
Galactic N_H:	2.53× 10²⁰ cm^-2
Galactic E(B-V):	0.02772785

Sun distance:	105.71°
Sun angle:	4.09 [hr](West of Sun)
Moon distance:	106.05°
Visibility of this field.

Data analysed so far:

ObsID: 00021739001 with 3.1 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 2 sources have been found in the XRT data. 0 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from SVOM/ECLAIRs pos	Exposure
1 [details]	12h 58m 31.64s194.63185°	+76° 10′ 35.3″76.17647°	4.5′′	Good	5.7′	3.1 ks
Mean XRT rate: 5.8 (+1.9, -1.6) ×10^-3 ct s^-1 Peak XRT rate: 5.8 (+1.9, -1.6) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 2.2 (+0.7, -0.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 2.2 (+0.7, -0.6) ×10^-13 erg cm^-1s^-1 Products: Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
2 [details]	13h 02m 14.43s195.56011°	+76° 15′ 24.0″76.25666°	5.9′′	Good	8.5′	3.1 ks
Mean XRT rate: 3.6 (+1.7, -1.3) ×10^-3 ct s^-1 Peak XRT rate: 3.6 (+1.7, -1.3) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (XRT equiv count-rate) Mean XRT flux: 7.7 (+3.6, -2.8) ×10^-12 erg cm^-1s^-1 Peak XRT flux: 7.7 (+3.6, -2.8) ×10^-12 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.