GRB 211106A: Swift observation summary

Mission:	Swift/BAT-GUANO
GRB RA:	343.643°
GRB Dec:	-53.236°
GRB Err:	7.0 arcmin
T0:	2021-11-06 04:37:31 UT
Galactic:	334.54° -56.12°
Galactic N_H:	1.02× 10²⁰ cm^-2
Galactic E(B-V):	0.01137177

Sun distance:	94.85°
Sun angle:	8.14 [hr] (East of Sun)
Moon distance:	81.17°
Visibility of this field.

Data analysed so far:

ObsID: 00021466001 with 5.0 ks exposure.
ObsID: 00021466002 with 5.0 ks exposure.
ObsID: 00021466003 with 0.0 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-GUANO pos	Exposure	Notes	Vizier
2 [details]	22h 54m 20.45s343.58521°	-53° 13′ 49.0″-53.23028°	3.4′′	Good	2.1′	16.6 ks	The source is fading with 3.7-σ significance.
Mean XRT rate: 5.4 (±0.8) ×10^-3 ct s^-1 Peak XRT rate: 1.2 (±0.3) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.97 (±0.30) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 4.4 (±1.1) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.2 [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 18 sources have been found in the XRT data. 1 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from Swift/BAT-GUANO pos	Exposure	Notes
1 [details]	22h 55m 06.73s343.77803°	-53° 13′ 04.5″-53.21792°	4.0′′	Good	5.0′	14.0 ks	Matches known X-ray source: 1RXS J225507.9-531312 (from ROSAT/RASSFSC), 12.5″ away. Matches SIMBAD source: LEDA 432583, 1.5″ away.
Mean XRT rate: 5.7 (±0.8) ×10^-3 ct s^-1 Peak XRT rate: 6.3 (±1.4) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (XRT equiv count-rate) Mean XRT flux: 3.9 (±0.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 4.4 (±1.0) ×10^-13 erg cm^-1s^-1 Products: Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.2 [What is this?]
2 [details]	22h 54m 20.45s343.58521°	-53° 13′ 49.0″-53.23028°	3.4′′	Good	2.1′	16.6 ks	The source is fading with 3.7-σ significance.
Mean XRT rate: 5.4 (±0.8) ×10^-3 ct s^-1 Peak XRT rate: 1.2 (±0.3) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.97 (±0.30) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 4.4 (±1.1) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.2 [What is this?]
3 [details]	22h 55m 06.71s343.77797°	-53° 18′ 53.9″-53.31497°	5.9′′	Good	6.8′	14.0 ks
Mean XRT rate: 2.5 (+0.6, -0.5) ×10^-3 ct s^-1 Peak XRT rate: 2.4 (±0.6) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.01 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 6.5 (+1.5, -1.4) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 6.3 (±1.7) ×10^-14 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~0.6 [What is this?]
4 [details]	22h 54m 53.36s343.72233°	-53° 07′ 17.5″-53.12154°	5.5′′	Good	7.4′	14.0 ks
Mean XRT rate: 1.4 (+0.5, -0.4) ×10^-3 ct s^-1 Peak XRT rate: 1.4 (+0.5, -0.4) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 8.6 (+3.0, -2.5) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 8.6 (+3.0, -2.5) ×10^-14 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
5 [details]	22h 54m 43.86s343.68274°	-53° 08′ 14.1″-53.13724°	5.8′′	Good	6.1′	14.0 ks
Mean XRT rate: 3.4 (+0.7, -0.6) ×10^-3 ct s^-1 Peak XRT rate: 5.3 (±1.3) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.09 (+0.22, -0.20) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.7 (±0.4) ×10^-13 erg cm^-1s^-1 Products: Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
6 [details]	22h 54m 58.14s343.74226°	-53° 13′ 33.6″-53.22600°	7.3′′	Reasonable	3.6′	14.0 ks
Mean XRT rate: 1.6 (±0.5) ×10^-3 ct s^-1 Peak XRT rate: 1.6 (±0.5) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.09 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 6.6 (±1.9) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 6.6 (±1.9) ×10^-14 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~1.0 [What is this?]
7 [details]	22h 54m 56.22s343.73426°	-53° 21′ 28.5″-53.35792°	6.0′′	Good	8.0′	14.0 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: 0.03 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~1.9 [What is this?]
8 [details]	22h 54m 53.51s343.72298°	-53° 17′ 10.0″-53.28611°	6.9′′	Good	4.2′	14.0 ks
Mean XRT rate: 1.4 (+0.5, -0.4) ×10^-3 ct s^-1 Peak XRT rate: 1.4 (+0.5, -0.4) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 4.7 (+1.6, -1.3) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 4.7 (+1.6, -1.3) ×10^-14 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~1.2 [What is this?]
9 [details]	22h 55m 28.96s343.87068°	-53° 12′ 10.2″-53.20283°	5.3′′	Good	8.4′	14.0 ks
Mean XRT rate: 7.2 (+3.6, -2.8) ×10^-4 ct s^-1 Peak XRT rate: 7.2 (+3.6, -2.8) ×10^-4 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
10 [details]	22h 54m 16.48s343.56867°	-53° 19′ 21.4″-53.32261°	5.8′′	Reasonable	5.8′	14.0 ks
Mean XRT rate: 1.1 (±0.4) ×10^-3 ct s^-1 Peak XRT rate: 1.1 (±0.4) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~1.8 [What is this?]
11 [details]	22h 54m 23.68s343.59868°	-53° 08′ 00.4″-53.13345°	5.8′′	Good	6.4′	14.0 ks
Mean XRT rate: 1.4 (+0.5, -0.4) ×10^-3 ct s^-1 Peak XRT rate: 1.4 (+0.5, -0.4) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 4.7 (+1.5, -1.3) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 4.7 (+1.5, -1.3) ×10^-14 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~1.3 [What is this?]
12 [details]	22h 55m 03.29s343.76372°	-53° 16′ 17.0″-53.27139°	5.9′′	Poor	4.8′	14.0 ks
Mean XRT rate: 1.1 (±0.4) ×10^-3 ct s^-1 Peak XRT rate: 1.1 (±0.4) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~1.7 [What is this?]
13 [details]	22h 53m 21.07s343.33781°	-53° 13′ 12.5″-53.22013°	7.0′′	Poor	11.0′	14.0 ks
Mean XRT rate: 6.2 (+3.7, -2.7) ×10^-4 ct s^-1 Peak XRT rate: 6.2 (+3.7, -2.7) ×10^-4 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
14 [details]	22h 55m 12.45s343.80188°	-53° 23′ 41.2″-53.39479°	6.7′′	Poor	11.1′	10.4 ks
Mean XRT rate: 2.7 (+0.8, -0.6) ×10^-3 ct s^-1 Peak XRT rate: 2.8 (+1.0, -0.8) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.6 (+0.5, -0.4) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.6 (+0.6, -0.5) ×10^-13 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~1.2 [What is this?]
15 [details]	22h 54m 36.14s343.65058°	-53° 21′ 59.3″-53.36646°	7.3′′	Reasonable	7.8′	14.0 ks
Mean XRT rate: 10 (+4, -3) ×10^-4 ct s^-1 Peak XRT rate: 10 (+4, -3) ×10^-4 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~2.4 [What is this?]
16 [details]	22h 54m 30.14s343.62560°	-53° 19′ 25.3″-53.32370°	8.4′′	Poor	5.3′	14.0 ks
Mean XRT rate: 8.0 (+3.7, -3.0) ×10^-4 ct s^-1 Peak XRT rate: 8.0 (+3.7, -3.0) ×10^-4 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~2.4 [What is this?]
17 [details]	22h 53m 59.50s343.49790°	-53° 16′ 13.2″-53.27035°	5.6′′	Good	5.6′	14.0 ks
Mean XRT rate: 1.6 (±0.5) ×10^-3 ct s^-1 Peak XRT rate: 1.6 (±0.5) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 5.5 (±1.6) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 5.5 (±1.6) ×10^-14 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
18 [details]	22h 53m 08.02s343.28341°	-53° 15′ 59.5″-53.26652°	7.4′′	Poor	13.0′	6.6 ks
Mean XRT rate: 1.51 (+1.12, -0.76) ×10^-3 ct s^-1 Peak XRT rate: 1.51 (+1.12, -0.76) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~3.5 [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.

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FITS exposure map.