GRB 170131A: Swift observation summary

Mission:	Swift/BAT
GRB RA:	341.447°
GRB Dec:	+64.006°
GRB Err:	3.0 arcmin
T0:	2017-01-31 23:14:40 UT
Galactic:	109.69° +4.41°
Galactic N_H:	7.50× 10²¹ cm^-2
Galactic E(B-V):	1.192129

Sun distance:	83.70°
Sun angle:	1.78 [hr] (East of Sun)
Moon distance:	67.59°
Visibility of this field.

Data analysed so far:

ObsID: 00020738001 with 4.9 ks exposure.

About ToO analysis.

Find an upper limit.

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 Swift/BAT pos	Exposure
1 [details]	22h 45m 35.85s341.39938°	+64° 00′ 32.6″64.00904°	5.8′′	Good	1.3′	4.9 ks
Mean XRT rate: 2.2 (+0.9, -0.7) ×10^-3 ct s^-1 Peak XRT rate: 2.2 (+0.9, -0.7) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.01 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 6.2 (+2.6, -2.1) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 6.2 (+2.6, -2.1) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.1 [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=4.41°
2 [details]	22h 47m 04.94s341.77057°	+63° 53′ 49.6″63.89711°	6.7′′	Good	10.7′	4.9 ks
Mean XRT rate: 3.5 (+1.3, -1.1) ×10^-3 ct s^-1 Peak XRT rate: 3.5 (+1.3, -1.1) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 3.5×10^-3 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 6.5 (+2.5, -2.0) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 6.5 (+2.5, -2.0) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.7 [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=4.41°

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.