GRB 220418B: Swift observation summary

Mission:	Swift/BAT-GUANO
GRB RA:	224.344°
GRB Dec:	-17.539°
GRB Err:	3.0 arcmin
T0:	2022-04-18 17:16:21 UT
Galactic:	340.86° +35.89°
Galactic N_H:	7.69× 10²⁰ cm^-2
Galactic E(B-V):	0.1077571

Sun distance:	161.64°
Sun angle:	10.82 [hr] (West of Sun)
Moon distance:	7.57°
Visibility of this field.

Data analysed so far:

ObsID: 00021486001 with 4.8 ks exposure.

About ToO analysis.

Find an upper limit.

Sources found so far

So far 34 sources have been found in the XRT data. 0 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from Swift/BAT-GUANO pos	Exposure	Notes
1 [details]	14h 57m 55.85s224.48271°	-17° 31′ 33.1″-17.52585°	10.7′′	Poor	8.0′	4.8 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.07 ct s^-1 (XRT equiv count-rate) Products: Enhanced position \| Expected serendipitous sources: ~1.06×10^-2 [What is this?]
2 [details]	14h 57m 23.71s224.34878°	-17° 22′ 06.0″-17.36834°	5.4′′	Poor	10.2′	1.5 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Enhanced position \| Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
3 [details]	14h 57m 28.00s224.36668°	-17° 26′ 38.9″-17.44414°	4.4′′	Poor	5.8′	4.8 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Products: Enhanced position \| Expected serendipitous sources: ~1.44×10^-2 [What is this?]
4 [details]	14h 57m 02.70s224.26125°	-17° 26′ 17.5″-17.43818°	7.7′′	Poor	7.7′	2.1 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.07 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.07 [What is this?]
5 [details]	14h 57m 29.31s224.37213°	-17° 21′ 24.7″-17.35686°	7.0′′	Poor	11.0′	576 s
Mean XRT rate: 2.0 (+0.9, -0.7) ×10^-2 ct s^-1 Peak XRT rate: 2.0 (+0.9, -0.7) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.07 [What is this?]
6 [details]	14h 57m 19.61s224.33170°	-17° 39′ 27.6″-17.65767°	7.5′′	Good	7.2′	4.8 ks
Mean XRT rate: 3.3 (+1.5, -1.2) ×10^-3 ct s^-1 Peak XRT rate: 3.3 (+1.5, -1.2) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.06 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 8.3 (+3.7, -2.9) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 8.3 (+3.7, -2.9) ×10^-14 erg cm^-1s^-1 Products: Spectrum \| Expected serendipitous sources: ~0.3 [What is this?]
7 [details]	14h 56m 50.69s224.21121°	-17° 20′ 59.9″-17.34996°	25.0′′	Poor	13.7′	576 s
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.3 [What is this?]
8 [details]	14h 56m 33.24s224.13852°	-17° 27′ 13.9″-17.45387°	8.6′′	Poor	12.8′	1.5 ks	This source may be affected by extended emission
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
9 [details]	14h 57m 55.52s224.48132°	-17° 24′ 35.0″-17.40971°	7.9′′	Poor	11.0′	576 s	This source may be affected by extended emission
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.06 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
10 [details]	14h 56m 42.50s224.17707°	-17° 22′ 05.7″-17.36825°	6.8′′	Poor	14.0′	576 s
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.2 [What is this?]
11 [details]	14h 56m 33.48s224.13950°	-17° 26′ 43.4″-17.44540°	6.4′′	Poor	13.0′	1.1 ks	This source may be affected by extended emission
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.5 [What is this?]
12 [details]	14h 57m 18.53s224.32719°	-17° 25′ 54.8″-17.43189°	8.1′′	Poor	6.5′	4.8 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.06 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.4 [What is this?]
13 [details]	14h 56m 59.82s224.24924°	-17° 20′ 08.3″-17.33563°	9.4′′	Poor	13.4′	576 s
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.3 [What is this?]
14 [details]	14h 56m 39.65s224.16522°	-17° 28′ 19.1″-17.47196°	15.4′′	Poor	11.0′	1.5 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.06 [What is this?]
15 [details]	14h 57m 24.28s224.35117°	-17° 20′ 53.5″-17.34821°	6.8′′	Poor	11.5′	576 s
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.09 [What is this?]
16 [details]	14h 57m 46.75s224.44479°	-17° 23′ 36.6″-17.39349°	15.4′′	Poor	10.5′	980 s
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.2 [What is this?]
17 [details]	14h 56m 55.27s224.23029°	-17° 22′ 36.9″-17.37691°	8.5′′	Poor	11.7′	1.5 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
18 [details]	14h 57m 19.91s224.33297°	-17° 22′ 38.5″-17.37737°	11.3′′	Poor	9.7′	1.5 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.4 [What is this?]
19 [details]	14h 57m 20.96s224.33733°	-17° 20′ 31.7″-17.34215°	6.8′′	Poor	11.8′	576 s
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.06 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.09 [What is this?]
20 [details]	14h 57m 24.29s224.35121°	-17° 35′ 45.6″-17.59601°	6.0′′	Poor	3.4′	4.8 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Products: Enhanced position \| Expected serendipitous sources: ~0.1 [What is this?]
21 [details]	14h 57m 07.40s224.28082°	-17° 21′ 02.5″-17.35071°	12.7′′	Poor	11.9′	576 s
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.1 [What is this?]
22 [details]	14h 56m 34.15s224.14230°	-17° 29′ 14.5″-17.48737°	6.2′′	Poor	11.9′	1.5 ks	This source may be affected by extended emission
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.3 [What is this?]
23 [details]	14h 56m 29.48s224.12282°	-17° 30′ 15.8″-17.50438°	12.2′′	Poor	12.8′	1.5 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined 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?]
24 [details]	14h 57m 38.65s224.41102°	-17° 40′ 54.9″-17.68191°	6.1′′	Poor	9.4′	4.5 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
25 [details]	14h 56m 48.55s224.20228°	-17° 25′ 51.8″-17.43105°	9.3′′	Poor	10.4′	1.5 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.8 [What is this?]
26 [details]	14h 56m 42.66s224.17775°	-17° 25′ 39.3″-17.42757°	6.9′′	Poor	11.6′	1.5 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.06 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
27 [details]	14h 57m 14.24s224.30932°	-17° 39′ 41.4″-17.66151°	5.6′′	Poor	7.6′	4.8 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined 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?]
28 [details]	14h 56m 36.72s224.15301°	-17° 29′ 19.7″-17.48879°	6.9′′	Poor	11.3′	1.5 ks	This source may be affected by extended emission
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined 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?]
29 [details]	14h 57m 16.80s224.32000°	-17° 23′ 21.1″-17.38918°	8.7′′	Poor	9.1′	1.5 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
30 [details]	14h 57m 52.82s224.47008°	-17° 24′ 13.9″-17.40387°	7.3′′	Poor	10.9′	576 s	This source may be affected by extended emission
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.06 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.2 [What is this?]
31 [details]	14h 56m 51.85s224.21603°	-17° 23′ 44.3″-17.39565°	8.0′′	Poor	11.3′	1.5 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
32 [details]	14h 56m 49.39s224.20579°	-17° 24′ 44.3″-17.41229°	6.8′′	Poor	11.0′	1.5 ks
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.00×10⁺⁰ [What is this?]
33 [details]	14h 57m 11.87s224.29948°	-17° 21′ 26.4″-17.35733°	6.1′′	Poor	11.2′	980 s
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.08 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.5 [What is this?]
34 [details]	14h 56m 38.48s224.16032°	-17° 23′ 30.0″-17.39165°	6.2′′	Poor	13.7′	576 s
Mean XRT rate: undetermined ct s^-1 Peak XRT rate: undetermined ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Products: Expected serendipitous sources: ~0.3 [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

Select image style: Draggable PNG | JS9.

Magnify image and make scrollable?

FITS image.

Exposure map

Magnify exposure map and make scrollable?

FITS exposure map.