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Home > GRB region information > 1185673

Swift Trigger: 1185673

Presumed name: GRB 230816A

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

BAT	21h 53m 30.00s, +37° 49′ 40.8″
position:	(328.375, 37.828 ± 180″)
XRT	21h 53m 46.78s, +37° 51′ 17.9″
position:	(328.44492, 37.85498 ± 1.9″)
UVOT	No position available.
Galactic NHI:	1.75×1021 cm-2
Galactic E(B-V):	0.296 mag

Best RA:	21h 53m 46.78s	= 328.44492 d
Best Dec:	+37° 51′ 17.9″	= 37.85498 d
Gal Lat:	-12.83
Gal Long:	88.41
Sun angle:	128.33°, 11.8 hr West

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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.

There are 7 SPER messages, and 1 objects have been found

• • Object 1 - enhanced position.
  • RA (J2000) : 21 53 46.90 (37.85470)
  • Dec (J2000): +37 51 16.9 ( 37.85406)
  • Error (90%): 1.9
  • Counts in Source: 164

See the SPER page for details of how this position was produced.

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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

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Catalogue Searches. Searched 200′ around XRT 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
142.3	328.4498	37.8157	TYC 3185-1950-1	B=12.59, G=11.915121, H=10.667, J=10.939, K=10.626, V=12.17
150.6	328.4922	37.8361	Gaia DR3 1950007378222743552	G=20.681089

* 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
5.0	328.4442	37.8564			NED
10.6	328.4475	37.8572			NED
12.2	328.4417	37.8528			NED
18.9	328.4436	37.8601		B2=19.0, I=17.7, R1=18.4, R2=17.8	USNO-B1
19.4	328.4515	37.8564		B1=20.1, B2=18.4, I=17.5	USNO-B1
19.4	328.4513	37.8569			NED
19.7	328.4446	37.8606			NED
21.7	328.4501	37.8594		B2=21.8, R1=18.8	USNO-B1
23.4	328.4425	37.8489			NED
28.5	328.4369	37.8597		B1=19.9, I=17.4	USNO-B1

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

There are 327 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
5.0	328.4444	37.8563	B1=19.2, B2=19.5, I=16.3, R1=17.4, R2=17.5	USNO-B1
5.0	328.4443	37.8563	h=14.5, j=15.1, k=14.2	2MASS
10.5	328.4474	37.8572	h=13.4, j=13.7, k=13.2	2MASS
10.7	328.4475	37.8572	B1=15.9, B2=16.1, I=14.4, R1=14.6, R2=15.3	USNO-B1
11.7	328.4418	37.8528	B1=19.8, B2=19.7, I=16.8, R1=17.5, R2=18.0	USNO-B1
12.0	328.4411	37.8535	I=18.5, R1=19.0, R2=19.7	USNO-B1
12.2	328.4418	37.8527	h=15.0, j=15.8, k=14.9	2MASS
19.4	328.4441	37.8603	B2=19.3, I=17.6, R1=18.5, R2=18.1	USNO-B1
19.4	328.4512	37.8570	h=15.7, j=16.2, k=15.2	2MASS
19.7	328.4447	37.8605	h=16.3, j=16.5, k=15.5	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 354 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.