GRB 181003A: Swift observation summary

Mission:	Swift/BAT
GRB RA:	52.569°
GRB Dec:	-34.023°
GRB Err:	3.0 arcmin
T0:	2018-10-03 05:11:03 UT
Galactic:	234.31° -55.34°
Galactic N_H:	1.21× 10²⁰ cm^-2
Galactic E(B-V):	0.0118873

Sun distance:	124.20°
Sun angle:	9.11 [hr](West of Sun)
Moon distance:	78.71°
Visibility of this field.

Data analysed so far:

ObsID: 00865179000 with 4.1 ks exposure.
ObsID: 00865179001 with 4.5 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]	03h 30m 06.89s52.52869°	-33° 57′ 52.8″-33.96466°	6.3′′	Good	4.0′	8.6 ks	The source is fading with 3.6-σ significance.
Mean XRT rate: 4.9 (±1.3) ×10^-3 ct s^-1 Peak XRT rate: 4.9 (±1.3) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.12 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.9 (±0.5) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.9 (±0.5) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.07 [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 12 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
1 [details]	03h 30m 06.89s52.52869°	-33° 57′ 52.8″-33.96466°	6.3′′	Good	4.0′	8.6 ks	The source is fading with 3.6-σ significance.
Mean XRT rate: 4.9 (±1.3) ×10^-3 ct s^-1 Peak XRT rate: 4.9 (±1.3) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.12 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.9 (±0.5) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.9 (±0.5) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.07 [What is this?]
2 [details]	03h 30m 13.07s52.55447°	-34° 02′ 42.7″-34.04519°	2.5′′	Good	1.5′	8.6 ks
Mean XRT rate: 7.3 (±1.2) ×10^-3 ct s^-1 Peak XRT rate: 7.7 (±1.6) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.15 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.75 (±0.29) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.9 (±0.4) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.02 [What is this?]
3 [details]	03h 30m 26.92s52.61217°	-33° 58′ 05.0″-33.96806°	5.4′′	Good	3.9′	8.6 ks
Mean XRT rate: 2.3 (±0.6) ×10^-3 ct s^-1 Peak XRT rate: 2.3 (±0.6) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.20 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.1 (±0.3) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.1 (±0.3) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.2 [What is this?]
4 [details]	03h 30m 26.17s52.60904°	-34° 04′ 21.9″-34.07275°	6.7′′	Reasonable	3.6′	8.6 ks
Mean XRT rate: 1.3 (+0.5, -0.4) ×10^-3 ct s^-1 Peak XRT rate: 1.3 (+0.5, -0.4) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.07 ct s^-1 (XRT equiv count-rate) Products: Light curve \| Expected serendipitous sources: ~0.4 [What is this?]
5 [details]	03h 30m 56.52s52.73549°	-34° 11′ 26.6″-34.19072°	5.0′′	Good	13.0′	3.3 ks	This source may be affected by extended emission
Mean XRT rate: 3.2 (+1.7, -1.3) ×10^-3 ct s^-1 Peak XRT rate: 3.2 (+1.7, -1.3) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.06 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.5 (+0.8, -0.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.5 (+0.8, -0.6) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~1.1 [What is this?]
6 [details]	03h 29m 57.59s52.48996°	-34° 01′ 19.6″-34.02212°	7.2′′	Poor	3.9′	8.6 ks
Mean XRT rate: 1.9 (+0.7, -0.5) ×10^-3 ct s^-1 Peak XRT rate: 1.9 (+0.7, -0.5) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.10 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 7.5 (+2.6, -2.2) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 7.5 (+2.6, -2.2) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.3 [What is this?]
7 [details]	03h 30m 21.87s52.59114°	-34° 05′ 28.6″-34.09128°	4.6′′	Good	4.2′	8.6 ks
Mean XRT rate: 3.0 (±0.7) ×10^-3 ct s^-1 Peak XRT rate: 3.4 (±0.9) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.24 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.24 (+0.31, -0.29) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.4 (±0.4) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.2 [What is this?]
8 [details]	03h 30m 13.14s52.55477°	-33° 51′ 11.0″-33.85307°	6.0′′	Poor	10.2′	8.6 ks
Mean XRT rate: 6 (+5, -4) ×10^-4 ct s^-1 Peak XRT rate: 6 (+5, -4) ×10^-4 ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Products: Light curve \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
9 [details]	03h 29m 45.58s52.43992°	-34° 02′ 49.8″-34.04716°	7.9′′	Reasonable	6.6′	8.6 ks
Mean XRT rate: 1.2 (+0.6, -0.4) ×10^-3 ct s^-1 Peak XRT rate: 1.2 (+0.6, -0.4) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.09 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 5.1 (+2.3, -1.8) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 5.1 (+2.3, -1.8) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~1.3 [What is this?]
10 [details]	03h 30m 20.43s52.58512°	-34° 11′ 17.8″-34.18828°	7.1′′	Poor	9.9′	8.6 ks
Mean XRT rate: 1.2 (+0.6, -0.5) ×10^-3 ct s^-1 Peak XRT rate: 1.2 (+0.6, -0.5) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.06 ct s^-1 (XRT equiv count-rate) Products: Light curve \| Expected serendipitous sources: ~3.0 [What is this?]
11 [details]	03h 29m 58.74s52.49475°	-33° 53′ 47.9″-33.89664°	7.7′′	Reasonable	8.4′	8.6 ks
Mean XRT rate: 1.2 (+0.6, -0.5) ×10^-3 ct s^-1 Peak XRT rate: 1.2 (+0.6, -0.5) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Light curve \| Expected serendipitous sources: ~2.1 [What is this?]
12 [details]	03h 30m 56.24s52.73434°	-34° 11′ 01.4″-34.18371°	8.5′′	Good	12.7′	5.1 ks	This source may be affected by extended emission
Mean XRT rate: 7 (+7, -4) ×10^-4 ct s^-1 Peak XRT rate: 7 (+7, -4) ×10^-4 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Light curve \| 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.

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Exposure map

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FITS exposure map.