GRB 180103A: Swift observation summary

Mission:	Swift/BAT
GRB RA:	159.585°
GRB Dec:	-53.555°
GRB Err:	3.0 arcmin
T0:	2018-01-03 01:08:09 UT
Galactic:	283.85° +4.31°
Galactic N_H:	3.26× 10²¹ cm^-2
Galactic E(B-V):	0.4811102

Sun distance:	89.70°
Sun angle:	8.27 [hr](West of Sun)
Moon distance:	81.22°
Visibility of this field.

Data analysed so far:

ObsID: 00020786001 with 2.0 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 Swift/BAT pos	Exposure	Notes	Vizier
1 [details]	10h 38m 24.37s159.60155°	-53° 33′ 21.6″-53.55600°	3.8′′	Good	0.6′	4.0 ks	The source is fading with 3.4-σ significance.
Mean XRT rate: 1.04 (+0.25, -0.24) ×10^-2 ct s^-1 Peak XRT rate: 1.9 (±0.5) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 3.7 (+0.9, -0.8) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 6.7 (±1.7) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~9.71×10^-3 [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=4.31°

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 Swift/BAT pos	Exposure	Notes	Vizier
1 [details]	10h 38m 24.37s159.60155°	-53° 33′ 21.6″-53.55600°	3.8′′	Good	0.6′	4.0 ks	The source is fading with 3.4-σ significance.
Mean XRT rate: 1.04 (+0.25, -0.24) ×10^-2 ct s^-1 Peak XRT rate: 1.9 (±0.5) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 3.7 (+0.9, -0.8) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 6.7 (±1.7) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~9.71×10^-3 [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=4.31°

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.