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Home > GRB region information > 867987

Swift Trigger: 867987

Presumed name: GRB 181020A

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Related pages: Burst Analyser | Enhanced position | Light curve | Spectrum | Image | XRT Catalogue entry | Download obs data | GCN Notices

BAT	00h 55m 52.08s, -47° 22′ 48.0″
position:	(13.967, -47.380 ± 180″)
XRT	00h 55m 56.09s, -47° 22′ 46.6″
position:	(13.9837, -47.3796 ± 4.8″)
UVOT	00h 55m 55.78s, -47° 22′ 51.6″
position:	(13.9824, -47.3810 ± 0.8″)
Galactic NHI:	1.58×100 cm-2
Galactic E(B-V):	0.014 mag

Best RA:	00h 55m 55.78s	= 13.9824 d
Best Dec:	-47° 22′ 51.6″	= -47.3810 d
Gal Lat:	-69.73
Gal Long:	300.74
Sun angle:	121.34°, -11.3 hr East of Sun

¹Sper #0 auto processing.

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GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

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Sun angle for this burst.

UVOT data

No UVOT images are currently available.

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XRT SPER data

SPER results page for this trigger.

No SPER data received yet. Refresh this page to check again.

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Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)	RA	Dec	Date reported	Source	Misc	Query
0.2′′	13.98242	-47.38106		GCN #23349	GRB 181020A: Swift detection of a burst with an optical counterpart
0.3′′	13.98237	-47.38108		GCN #23360	GRB 181020A: Swift/UVOT Detection
2.4′′	13.98250	-47.38033		GCN #23351	GRB 181020A: Enhanced Swift-XRT position
34.3′′	13.98700	-47.37200		GCN #23357	GRB 181020A: Swift-BAT refined analysis
48.8′′	13.96471	-47.38736		GCN #23356	GRB 181020A: VLT/X-shooter spectroscopy and redshift

There are 11 matches in total. See the full table for details.

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Catalogue Searches. Searched 3.33′ around UVOT position

Click on the distance to view the full details (not available for sources from the SSS catalogue). Click on the column headers to sort the table on that column (click again to invert sort order).

SIMBAD

	RA*	Dec*	SIMBAD name		Query
183.2	14.0275	-47.4217	LEDA 501631

* RA/Dec in equinox J2000

X-ray sources

	RA*	Dec*		Source table2	Observatory	Query

Queried the X-ray MASTER catalogue.

* RA/Dec in equinox J2000

¹Energy band for count-rate is mission specific.

Galaxies

	RA*	Dec*	Redshift		Catalogue	Query
9.8	13.9852	-47.3829		B=18.7, R2=17.1, i=16.6	SSS
9.9	13.9854	-47.3829		h=14.5, j=15.3, k=13.7	2MASS
10.0	13.9854	-47.3831		Mag=18.86	NED
11.7	13.9860	-47.3831		B2=17.9, I=18.9	USNO-B1
11.9	13.9871	-47.3801		B=20.8, R2=19.5, i=18.1	SSS
12.2	13.9871	-47.3800		Mag=19.1	NED
15.2	13.9787	-47.3776		B=22.6	SSS
35.8	13.9679	-47.3789		Mag=20.25	NED
35.8	13.9680	-47.3790		B=20.2, R2=18.8, i=18.4	SSS
48.7	13.9646	-47.3875		Mag=20.25	NED

Queried APM-N, SDSS, PSCz, SSS, NED, 2MASSX, USNO-B1.

There are 112 galaxies within the position error. The full list is here.

* RA/Dec in equinox J2000

Magnitudes depend on the catalogue. e.g. For Sloan, R is the Sloan r mag, not the Johnson R from APM, for example

Stars

	RA*	Dec*		Catalogue	Query
9.8	13.9852	-47.3829	B2=18.0, I=17.8, R1=16.3, R2=16.3	USNO-B1
9.9	13.9852	-47.3830	h=15.0, j=15.7, k=14.5	2MASS
11.9	13.9871	-47.3801	B2=20.1, I=19.1, R1=19.5, R2=19.6	USNO-B1
23.1	13.9848	-47.3748	B2=20.2, I=18.8, R1=19.8, R2=19.6	USNO-B1
35.9	13.9680	-47.3790	B2=20.0, I=18.6, R1=19.4, R2=19.2	USNO-B1
48.7	13.9648	-47.3874	h=15.9, j=16.6, k=15.6	2MASS
48.8	13.9647	-47.3874	B2=19.6, I=19.0, R1=18.3, R2=18.8	USNO-B1
55.0	13.9599	-47.3798	B2=20.1, R1=19.4, R2=19.8	USNO-B1
57.3	14.0053	-47.3774	B2=19.1, R2=20.0	USNO-B1
59.1	13.9714	-47.3956	B2=19.4, I=18.9, R2=19.9	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 100 stars within the position error. The full list is here.

* RA/Dec in equinox J2000

Magnitudes depend on the catalogue. e.g. For Sloan, R is the Sloan r mag, not the Johnson R from APM, for example.