HAWC 211123A: Swift observation summary

Mission:	HAWC
GRB RA:	34.110°
GRB Dec:	-8.040°
GRB Err:	30.0 arcmin
T0:	2021-11-23 03:52:23 UT
Galactic:	173.39° -62.26°
Galactic N_H:	3.34× 10²⁰ cm^-2
Galactic E(B-V):	0.02837491

Sun distance:	142.54°
Sun angle:	10.34 [hr](East of Sun)
Moon distance:	75.40°
Visibility of this field.

About tiled field analysis.

So far 7 fields have been scheduled for observations. Data are available and processed for 7 of these. The list gives the exposure time used in source detection. If any individual sources were selected for follow-up observations, the source detection is not repeated for the follow up observations and the table below is not updated.

21468 — 987 s of cleaned data taken between 2021-11-23 23:12:43 and 2021-11-23 23:32:00
21469 — 972 s of cleaned data taken between 2021-11-23 23:32:04 and 2021-11-23 23:49:07
21470 — 990 s of cleaned data taken between 2021-11-24 02:31:33 and 2021-11-24 02:50:16
21471 — 960 s of cleaned data taken between 2021-11-24 02:50:20 and 2021-11-24 03:07:24
21472 — 1.2 ks of cleaned data taken between 2021-11-24 05:35:33 and 2021-11-24 07:21:27
21473 — 977 s of cleaned data taken between 2021-11-23 21:37:02 and 2021-11-23 21:55:13
21474 — 985 s of cleaned data taken between 2021-11-23 21:55:16 and 2021-11-23 22:12:21

Find an upper limit.

Sources found so far

So far 6 sources have been found in the XRT data. 4 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from HAWC pos	Exposure	Notes
1 [details]	02h 15m 16.98s33.82074°	-07° 47′ 52.5″-7.79792°	7.9′′	Good	22.5′	972 s	Matches SIMBAD source: SDSS J021516.71-074755.3, 5″ away.
Mean XRT rate: 1.0 (+0.5, -0.4) ×10^-2 ct s^-1 Peak XRT rate: 1.0 (+0.5, -0.4) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate)
2 [details]	02h 16m 44.96s34.18732°	-07° 41′ 38.0″-7.69389°	7.6′′	Good	21.3′	990 s
Mean XRT rate: 1.2 (+0.5, -0.4) ×10^-2 ct s^-1 Peak XRT rate: 1.2 (+0.5, -0.4) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 4.4 (+1.7, -1.4) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 4.4 (+1.7, -1.4) ×10^-13 erg cm^-1s^-1 Products: Spectrum \| Enhanced position Expected serendipitous sources: ~0.8 [What is this?]
3 [details]	02h 16m 56.39s34.23495°	-08° 25′ 57.9″-8.43276°	4.6′′	Reasonable	24.7′	1.2 ks	Matches known X-ray source: 2SXPS J021656.3-082603 (from 2SXPS), 13.2″ away.
Mean XRT rate: 6.1 (+3.3, -2.5) ×10^-3 ct s^-1 Peak XRT rate: 6.1 (+3.3, -2.5) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (XRT equiv count-rate) Mean XRT flux: 4.2 (+2.2, -1.7) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 4.2 (+2.2, -1.7) ×10^-13 erg cm^-1s^-1 Products: Spectrum \| Enhanced position Expected serendipitous sources: ~0.7 [What is this?]
4 [details]	02h 17m 02.70s34.26123°	-08° 20′ 49.8″-8.34716°	3.5′′	Good	20.5′	1.2 ks	Matches known X-ray source: 2SXPS J021702.5-082053 (from 2SXPS), 6.2″ away. Matches SIMBAD source: ICRF J021702.6-082052, 4.8″ away.
Mean XRT rate: 2.5 (+0.6, -0.5) ×10^-2 ct s^-1 Peak XRT rate: 2.9 (±0.8) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (XRT equiv count-rate) Mean XRT flux: 6.7 (+1.5, -1.4) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 7.8 (±2.1) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position Expected serendipitous sources: ~0.2 [What is this?]
5 [details]	02h 17m 16.13s34.31720°	-08° 28′ 16.1″-8.47113°	3.1′′	Good	28.6′	1.2 ks	Matches known X-ray source: 2SXPS J021716.1-082817 (from 2SXPS), 2.1″ away. Matches SIMBAD source: PB 9129, 2.4″ away.
Mean XRT rate: 4.1 (±0.7) ×10^-2 ct s^-1 Peak XRT rate: 5.1 (±1.3) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.41 (±0.26) ×10^-12 erg cm^-1s^-1 Peak XRT flux: 1.8 (±0.5) ×10^-12 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position Expected serendipitous sources: ~0.1 [What is this?]
6 [details]	02h 17m 31.29s34.38038°	-08° 25′ 48.8″-8.43023°	6.4′′	Poor	28.4′	1.2 ks	The source is 3.8-σ above the 2SPXS limit.
Mean XRT rate: 1.0 (+0.4, -0.3) ×10^-2 ct s^-1 Peak XRT rate: 1.0 (+0.4, -0.3) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate)

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.