GRB 220617A: Swift observation summary

Mission:	Fermi/LAT
GRB RA:	156.960°
GRB Dec:	+15.530°
GRB Err:	5.4 arcmin
T0:	2022-06-17 18:31:12 UT
Galactic:	224.69° +54.76°
Galactic N_H:	2.98× 10²⁰ cm^-2
Galactic E(B-V):	0.0350688

Sun distance:	66.53°
Sun angle:	4.71 [hr] (East of Sun)
Moon distance:	159.98°
Visibility of this field.

Data analysed so far:

ObsID: 00021505001 with 4.9 ks exposure.

About ToO analysis.

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Sources found so far

So far 5 sources have been found in the XRT data. 2 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from LAT pos	Exposure	Notes
1 [details]	10h 28m 36.74s157.15308°	+15° 26′ 57.6″15.44933°	6.4′′	Good	12.2′	3.2 ks	Matches SIMBAD source: SDSS J102836.75+152702.2, 4.6″ away.
Mean XRT rate: 2.7 (+1.5, -1.1) ×10^-3 ct s^-1 Peak XRT rate: 2.7 (+1.5, -1.1) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 5.5 (+3.0, -2.2) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 5.5 (+3.0, -2.2) ×10^-14 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
2 [details]	10h 27m 43.15s156.92981°	+15° 24′ 21.1″15.40587°	6.4′′	Poor	7.6′	4.9 ks	Matches SIMBAD source: DES J102743.07+152423.5, 2.7″ away.
Mean XRT rate: 1.4 (+0.9, -0.7) ×10^-3 ct s^-1 Peak XRT rate: 1.4 (+0.9, -0.7) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
3 [details]	10h 28m 09.60s157.03998°	+15° 29′ 19.1″15.48864°	6.4′′	Reasonable	5.2′	4.9 ks
Mean XRT rate: 1.7 (+0.9, -0.7) ×10^-3 ct s^-1 Peak XRT rate: 1.7 (+0.9, -0.7) ×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?]
4 [details]	10h 27m 57.50s156.98960°	+15° 26′ 43.4″15.44539°	5.7′′	Good	5.4′	4.9 ks
Mean XRT rate: 1.8 (+0.9, -0.7) ×10^-3 ct s^-1 Peak XRT rate: 1.8 (+0.9, -0.7) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
5 [details]	10h 27m 25.60s156.85665°	+15° 21′ 27.8″15.35773°	6.3′′	Good	11.9′	1.7 ks
Mean XRT rate: 1.1 (+0.5, -0.4) ×10^-2 ct s^-1 Peak XRT rate: 1.1 (+0.5, -0.4) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.05 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.