GRB 210704A: Swift observation summary

Mission:	Fermi/LAT
GRB RA:	159.084°
GRB Dec:	+57.309°
GRB Err:	6.7 arcmin
T0:	2021-07-04 19:33:27 UT
Galactic:	151.82° +51.57°
Galactic N_H:	5.52× 10¹⁹ cm^-2
Galactic E(B-V):	0.00570206

Sun distance:	52.25°
Sun angle:	3.66 [hr] (East of Sun)
Moon distance:	91.00°
Visibility of this field.

Data analysed so far:

ObsID: 00021454001 with 2.6 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.

Probable afterglow details

A source was found which matches the afterglow criteria.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from LAT pos	Exposure	Notes	Vizier
1 [details]	10h 36m 05.33s159.02219°	+57° 12′ 58.9″57.21636°	3.2′′	Good	5.9′	2.6 ks	The source is 6.5-σ above the 2SXPS limit.
Mean XRT rate: 1.41 (±0.29) ×10^-2 ct s^-1 Peak XRT rate: 1.41 (±0.29) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 7.1 (±1.4) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 7.1 (±1.4) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.03 [What is this?]

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

Find an upper limit.

Sources found so far

So far 1 sources have been found in the XRT data. 0 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from LAT pos	Exposure	Notes	Vizier
1 [details]	10h 36m 05.33s159.02219°	+57° 12′ 58.9″57.21636°	3.2′′	Good	5.9′	2.6 ks	The source is 6.5-σ above the 2SXPS limit.
Mean XRT rate: 1.41 (±0.29) ×10^-2 ct s^-1 Peak XRT rate: 1.41 (±0.29) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 7.1 (±1.4) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 7.1 (±1.4) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.03 [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.