GRB 230512A: Swift observation summary

Mission:	Fermi/LAT
GRB RA:	295.400°
GRB Dec:	+38.400°
GRB Err:	18.0 arcmin
T0:	2023-05-12 06:27:45 UT
Galactic:	72.42° +7.57°
Galactic N_H:	1.76× 10²¹ cm^-2
Galactic E(B-V):	0.2124828

Sun distance:	95.79°
Sun angle:	7.55 [hr] (West of Sun)
Moon distance:	63.72°
Visibility of this field.
First slew:	2023-05-12 19:27:03 UT
First observation:	2023-05-12 19:03:31 UT
First analysis:	UT

About tiled field analysis.

So far 4 fields have been scheduled for observations. Data are available and processed for 4 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.

21571 — 1.1 ks of cleaned data taken between 2023-05-12 19:06:26 and 2023-05-12 19:26:57
21572 — 1.2 ks of cleaned data taken between 2023-05-12 19:27:01 and 2023-05-12 19:48:04
21573 — 1.2 ks of cleaned data taken between 2023-05-12 20:40:27 and 2023-05-12 21:04:56
21574 — 1.3 ks of cleaned data taken between 2023-05-12 21:05:01 and 2023-05-12 22:22:17

Find an upper limit.

Sources found so far

So far 11 sources have been found in the XRT data. 6 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from LAT pos	Exposure	Notes
1 [details]	19h 41m 55.26s295.48027°	+38° 39′ 53.6″38.66490°	4.2′′	Good	16.3′	1.2 ks	Matches SIMBAD source: ASAS J194155+3839.9, 3.9″ away.
Mean XRT rate: 9 (+4, -3) ×10^-3 ct s^-1 Peak XRT rate: 9 (+4, -3) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 5.1 (+2.2, -1.8) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 5.1 (+2.2, -1.8) ×10^-13 erg cm^-1s^-1 Products: Spectrum \| Enhanced position
2 [details]	19h 40m 46.76s295.19482°	+38° 31′ 22.6″38.52294°	6.9′′	Poor	12.1′	2.3 ks	Matches known X-ray source: 1RXS J194049.3+383137 (from ROSAT/RASSFSC), 33.342627043038″ away.
Mean XRT rate: 6.2 (+2.8, -2.2) ×10^-3 ct s^-1 Peak XRT rate: 6.2 (+2.8, -2.2) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (XRT equiv count-rate) Products: Spectrum
3 [details]	19h 42m 10.33s295.54305°	+38° 45′ 09.4″38.75261°	5.5′′	Good	22.2′	1.2 ks
Mean XRT rate: 1.8 (+0.6, -0.5) ×10^-2 ct s^-1 Peak XRT rate: 1.8 (+0.6, -0.5) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 3.57 (+1.13, -0.95) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 3.57 (+1.13, -0.95) ×10^-13 erg cm^-1s^-1 Products: Spectrum \| Enhanced position
4 [details]	19h 40m 48.56s295.20232°	+38° 31′ 09.6″38.51934°	3.1′′	Good	11.7′	2.3 ks	This source may be affected by optical loading Matches known X-ray source: 1RXS J194049.3+383137 (from ROSAT/RASSFSC), 30.619127254516″ away. Matches SIMBAD source: KOI-3725.01, 2.8″ away.
Mean XRT rate: 2.9 (±0.5) ×10^-2 ct s^-1 Peak XRT rate: 2.9 (±0.6) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (XRT equiv count-rate) Mean XRT flux: 7.1 (±1.1) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 7.1 (±1.5) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position
5 [details]	19h 40m 49.53s295.20636°	+38° 28′ 06.5″38.46848°	4.2′′	Good	10.0′	5.2 ks
Mean XRT rate: 1.1 (+0.4, -0.3) ×10^-2 ct s^-1 Peak XRT rate: 1.1 (+0.4, -0.3) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Products: Enhanced position
6 [details]	19h 43m 02.79s295.76164°	+38° 21′ 51.9″38.36442°	3.9′′	Good	17.1′	1.2 ks
Mean XRT rate: 6.7 (+3.5, -2.6) ×10^-3 ct s^-1 Peak XRT rate: 6.7 (+3.5, -2.6) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Products: Enhanced position
7 [details]	19h 40m 21.48s295.08951°	+38° 26′ 05.5″38.43485°	6.8′′	Reasonable	14.7′	1.1 ks
Mean XRT rate: 5.4 (+3.3, -2.4) ×10^-3 ct s^-1 Peak XRT rate: 5.4 (+3.3, -2.4) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate)
8 [details]	19h 41m 15.14s295.31310°	+38° 27′ 21.3″38.45592°	3.5′′	Good	5.3′	6.2 ks	Matches SIMBAD source: HD 225398, 3.9″ away.
Mean XRT rate: 7.3 (+1.4, -1.3) ×10^-3 ct s^-1 Peak XRT rate: 9 (+4, -3) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.25 (+0.24, -0.23) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.5 (+0.7, -0.5) ×10^-13 erg cm^-1s^-1 Products: Spectrum \| Enhanced position
9 [details]	19h 40m 59.62s295.24841°	+38° 06′ 05.7″38.10159°	7.7′′	Good	19.3′	1.3 ks	Matches SIMBAD source: BD+37 3559, 4.1″ away.
Mean XRT rate: 5.5 (+3.1, -2.3) ×10^-3 ct s^-1 Peak XRT rate: 5.5 (+3.1, -2.3) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate)
10 [details]	19h 40m 38.13s295.15887°	+38° 28′ 06.6″38.46849°	6.1′′	Poor	12.1′	1.1 ks
Mean XRT rate: 10 (+6, -4) ×10^-3 ct s^-1 Peak XRT rate: 10 (+6, -4) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (XRT equiv count-rate)
11 [details]	19h 40m 50.99s295.21247°	+38° 05′ 12.5″38.08681°	4.5′′	Good	20.8′	1.3 ks	Matches SIMBAD source: NVSS J194050+380510, 3.6″ away.
Mean XRT rate: 9 (+4, -3) ×10^-3 ct s^-1 Peak XRT rate: 9 (+4, -3) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.07 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 3.3 (+1.4, -1.1) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 3.3 (+1.4, -1.1) ×10^-13 erg cm^-1s^-1 Products: Spectrum \| Enhanced position

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.