GRB 201104A: Swift observation summary

Mission:	Fermi/LAT
GRB RA:	81.400°
GRB Dec:	-71.100°
GRB Err:	14.4 arcmin
T0:	2020-11-04 00:00:56 UT
Galactic:	282.00° -32.47°
Galactic N_H:	1.91× 10²¹ cm^-2
Galactic E(B-V):	0.3127093

Sun distance:	88.90°
Sun angle:	9.21 [hr](West of Sun)
Moon distance:	93.99°
Visibility of this field.

About tiled field analysis.

So far 2 fields have been scheduled for observations. Data are available and processed for 3 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.

21036 — 1.5 ks of cleaned data taken between 2020-11-04 18:47:43 and 2020-11-04 19:15:53
21037 — 1.6 ks of cleaned data taken between 2020-11-04 19:15:58 and 2020-11-04 20:49:45
21038 — 1.6 ks of cleaned data taken between 2020-11-04 20:49:49 and 2020-11-04 22:29:35

Find an upper limit.

Sources found so far

So far 4 sources have been found in the XRT data. 3 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from LAT pos	Exposure	Notes
1 [details]	05h 22m 06.41s80.52670°	-70° 49′ 30.7″-70.82519°	19.5′′	Poor	23.7′	1.6 ks
Mean XRT rate: 3.9 (+2.5, -1.8) ×10^-3 ct s^-1 Peak XRT rate: 3.9 (+2.5, -1.8) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.01 ct s^-1 (XRT equiv count-rate) Products: Light curve Expected serendipitous sources: ~0.4 [What is this?]
2 [details]	05h 24m 01.83s81.00761°	-71° 09′ 35.0″-71.15971°	2.6′′	Good	8.4′	1.5 ks	This source may be affected by stray light Matches known X-ray source: XMMSL2 J052359.8-710935 (from XMM-NEWTON/XMMSLEWCLN), 2.8″ away. Matches SIMBAD source: LHA 120-S 162, 1.3″ away.
Mean XRT rate: 3.4 (±0.6) ×10^-2 ct s^-1 Peak XRT rate: 3.7 (±1.0) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (XRT equiv count-rate) Mean XRT flux: 6.2 (±1.1) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 6.7 (±1.8) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position Expected serendipitous sources: ~0.07 [What is this?]
3 [details]	05h 23m 36.99s80.90412°	-71° 00′ 34.6″-71.00961°	4.1′′	Good	11.1′	1.6 ks	This source may be affected by stray light Matches SIMBAD source: MACHO 13.7047.393, 3.5″ away.
Mean XRT rate: 5.3 (+2.7, -2.0) ×10^-3 ct s^-1 Peak XRT rate: 5.3 (+2.7, -2.0) ×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: ~1.2 [What is this?]
4 [details]	05h 22m 45.50s80.68960°	-71° 01′ 28.7″-71.02464°	5.6′′	Poor	14.6′	1.6 ks	This source may be affected by stray light Matches SIMBAD source: [VV2006] J052247.2-710130, 8.5″ away.
Mean XRT rate: 4.3 (+3.0, -2.1) ×10^-3 ct s^-1 Peak XRT rate: 4.3 (+3.0, -2.1) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Products: Light curve \| Spectrum Expected serendipitous sources: ~0.9 [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.