GRB 220403C: Swift observation summary

Mission:	Fermi/GBM
GRB RA:	19.892°
GRB Dec:	-56.350°
GRB Err:	7.5 arcmin
T0:	2022-04-03 10:10:02 UT
Galactic:	295.05° -60.35°
Galactic N_H:	2.81× 10²⁰ cm^-2
Galactic E(B-V):	0.020925

Sun distance:	62.03°
Sun angle:	0.49 [hr] (East of Sun)
Moon distance:	71.17°
Visibility of this field.

Data analysed so far:

ObsID: 00021484001 with 3.2 ks exposure.

About ToO analysis.

Find an upper limit.

Sources found so far

So far 6 sources have been found in the XRT data. 0 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from Fermi/GBM pos	Exposure
1 [details]	01h 18m 50.87s19.71196°	-56° 27′ 10.8″-56.45300°	11.4′′	Poor	8.6′	3.2 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Products: Enhanced position \| Expected serendipitous sources: ~0.4 [What is this?]
2 [details]	01h 18m 31.04s19.62932°	-56° 22′ 21.5″-56.37264°	8.4′′	Poor	8.8′	3.2 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.4 [What is this?]
3 [details]	01h 18m 59.17s19.74655°	-56° 27′ 28.0″-56.45778°	9.1′′	Poor	8.1′	3.2 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.2 [What is this?]
4 [details]	01h 18m 51.41s19.71420°	-56° 15′ 37.1″-56.26030°	6.7′′	Good	8.0′	3.2 ks
Mean XRT rate: 4.3 (+1.7, -1.3) ×10^-3 ct s^-1 Peak XRT rate: 4.3 (+1.7, -1.3) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.07 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 2.90 (+1.13, -0.91) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 2.90 (+1.13, -0.91) ×10^-13 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
5 [details]	01h 18m 52.53s19.71887°	-56° 17′ 16.2″-56.28783°	6.8′′	Poor	6.9′	3.2 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Spectrum \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
6 [details]	01h 19m 48.63s19.95262°	-56° 15′ 37.7″-56.26048°	6.8′′	Reasonable	5.7′	3.2 ks
Mean XRT rate: 2.13 (+1.25, -0.92) ×10^-3 ct s^-1 Peak XRT rate: 2.13 (+1.25, -0.92) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.3 [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.