GRB 191001A: Swift observation summary

Mission:	Fermi/GBM
GRB RA:	305.199°
GRB Dec:	+15.084°
GRB Err:	1.2 arcsec
T0:	2019-10-01 06:41:30 UT
Galactic:	57.00° -12.00°
Galactic N_H:	9.71× 10²⁰ cm^-2
Galactic E(B-V):	0.1684049

Sun distance:	117.85°
Sun angle:	7.87 [hr] (East of Sun)
Moon distance:	86.80°
Visibility of this field.

Data analysed so far:

ObsID: 00020949001 with 2.5 ks exposure.
ObsID: 00020949002 with 2.7 ks exposure.

About ToO analysis.

Find an upper limit.

Sources found so far

So far 7 sources have been found in the XRT data. 2 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from Fermi/GBM pos	Exposure	Notes
1 [details]	20h 21m 12.69s305.30289°	+15° 06′ 57.3″15.11591°	6.6′′	Poor	6.3′	5.2 ks
Mean XRT rate: 2.3 (+1.0, -0.8) ×10^-3 ct s^-1 Peak XRT rate: 2.3 (+1.0, -0.8) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 3.1 (+1.3, -1.0) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 3.1 (+1.3, -1.0) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.4 [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=-12.00°
2 [details]	20h 21m 15.49s305.31454°	+15° 06′ 15.0″15.10418°	2.0′′	Good	6.8′	5.2 ks	This source may be affected by optical loading Matches known X-ray source: 1RXS J202117.0+150622 (from ROSAT/RASSFSC), 21.203855623499″ away. Matches SIMBAD source: HD 193707, 1.9″ away.
Mean XRT rate: 3.9 (±0.3) ×10^-2 ct s^-1 Peak XRT rate: 0.14 (±0.03) ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 6.8 (±0.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 2.4 (±0.6) ×10^-12 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~7.53×10^-3 [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=-12.00°
3 [details]	20h 20m 37.83s305.15762°	+14° 59′ 06.3″14.98508°	7.5′′	Good	6.4′	5.2 ks	Matches known X-ray source: 1RXS J202036.5+145848 (from ROSAT/RASSFSC), 26.589706988509″ away.
Mean XRT rate: 1.5 (+0.8, -0.6) ×10^-3 ct s^-1 Peak XRT rate: 1.5 (+0.8, -0.6) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.06 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 3.2 (+1.7, -1.3) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 3.2 (+1.7, -1.3) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.7 [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=-12.00°
4 [details]	20h 20m 13.86s305.05774°	+15° 07′ 13.6″15.12045°	5.9′′	Poor	8.5′	5.2 ks
Mean XRT rate: 1.0 (+0.7, -0.5) ×10^-3 ct s^-1 Peak XRT rate: 1.0 (+0.7, -0.5) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.01 ct s^-1 (XRT equiv count-rate) Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=-12.00°
5 [details]	20h 21m 13.08s305.30451°	+15° 10′ 50.4″15.18068°	6.7′′	Poor	8.4′	5.2 ks
Mean XRT rate: 1.5 (+0.9, -0.6) ×10^-3 ct s^-1 Peak XRT rate: 1.5 (+0.9, -0.6) ×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: ~1.2 [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=-12.00°
6 [details]	20h 20m 36.37s305.15154°	+14° 54′ 54.7″14.91520°	7.3′′	Reasonable	10.5′	5.2 ks
Mean XRT rate: 2.85 (+1.15, -0.91) ×10^-3 ct s^-1 Peak XRT rate: 2.85 (+1.15, -0.91) ×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: ~0.9 [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=-12.00°
7 [details]	20h 20m 26.15s305.10895°	+15° 01′ 10.1″15.01947°	7.0′′	Good	6.5′	5.2 ks
Mean XRT rate: 1.6 (+0.8, -0.6) ×10^-3 ct s^-1 Peak XRT rate: 1.6 (+0.8, -0.6) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Products: Light curve \| Expected serendipitous sources: ~0.7 [What is this?] Note: this is extragalactic sources only, whereas the GRB trigger is at b=-12.00°

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.