GRB 171010B: Swift observation summary

Mission:	Swift/BAT
GRB RA:	34.123°
GRB Dec:	-54.410°
GRB Err:	3.0 arcmin
T0:	2017-10-10 20:59:19 UT
Galactic:	279.04° -58.59°
Galactic N_H:	3.10× 10²⁰ cm^-2
Galactic E(B-V):	0.03487407

Sun distance:	116.85°
Sun angle:	10.82 [hr](West of Sun)
Moon distance:	85.72°
Visibility of this field.

Data analysed so far:

ObsID: 00020780001 with 4.8 ks exposure.

Source 2 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
5 [details]	02h 16m 39.44s34.16432°	-54° 23′ 46.2″-54.39617°	6.5′′	Reasonable	1.7′	8.0 ks	The source is fading with 3.5-σ significance. This source may be affected by extended emission
Mean XRT rate: 6.8 (±1.8) ×10^-3 ct s^-1 Peak XRT rate: 6.8 (±1.8) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.09 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 2.2 (±0.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 2.2 (±0.6) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.03 [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 7 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]	02h 16m 39.67s34.16529°	-54° 23′ 26.2″-54.39062°	4.2′′	Good	1.9′	8.0 ks	This source may be affected by extended emission
Mean XRT rate: 6.2 (+1.2, -1.1) ×10^-3 ct s^-1 Peak XRT rate: 7.7 (±1.7) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.09 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 2.1 (±0.4) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 2.6 (±0.6) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.03 [What is this?]
2 [details]	02h 16m 32.20s34.13416°	-54° 23′ 29.2″-54.39146°	5.6′′	Good	1.2′	8.0 ks
Mean XRT rate: 4.9 (+1.0, -0.9) ×10^-3 ct s^-1 Peak XRT rate: 6.9 (±1.4) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.07 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 2.3 (+0.5, -0.4) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 3.3 (±0.7) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.04 [What is this?]
3 [details]	02h 17m 12.24s34.30098°	-54° 27′ 45.5″-54.46264°	3.2′′	Good	7.0′	6.7 ks
Mean XRT rate: 3.97 (+1.02, -0.96) ×10^-3 ct s^-1 Peak XRT rate: 5.6 (+4.2, -2.8) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 3.5 (+0.9, -0.8) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 4.9 (+3.6, -2.5) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.3 [What is this?]
4 [details]	02h 15m 50.38s33.95992°	-54° 36′ 18.6″-54.60517°	5.3′′	Good	13.0′	3.1 ks
Mean XRT rate: 5.4 (+2.1, -1.7) ×10^-3 ct s^-1 Peak XRT rate: 5.4 (+2.1, -1.7) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.08 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.9 (+0.7, -0.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.9 (+0.7, -0.6) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.6 [What is this?]
5 [details]	02h 16m 39.44s34.16432°	-54° 23′ 46.2″-54.39617°	6.5′′	Reasonable	1.7′	8.0 ks	The source is fading with 3.5-σ significance. This source may be affected by extended emission
Mean XRT rate: 6.8 (±1.8) ×10^-3 ct s^-1 Peak XRT rate: 6.8 (±1.8) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.09 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 2.2 (±0.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 2.2 (±0.6) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.03 [What is this?]
6 [details]	02h 16m 23.08s34.09617°	-54° 17′ 24.8″-54.29022°	5.8′′	Good	7.2′	8.0 ks
Mean XRT rate: 2.3 (+0.8, -0.6) ×10^-3 ct s^-1 Peak XRT rate: 2.3 (+0.8, -0.6) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.8 (+0.6, -0.5) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.8 (+0.6, -0.5) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.5 [What is this?]
7 [details]	02h 17m 02.61s34.26088°	-54° 19′ 28.3″-54.32453°	6.3′′	Good	7.0′	8.0 ks
Mean XRT rate: 2.0 (+0.9, -0.7) ×10^-3 ct s^-1 Peak XRT rate: 2.0 (+0.9, -0.7) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.11 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 4.8 (+2.0, -1.6) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 4.8 (+2.0, -1.6) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.5 [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.