Swift Trigger: 1183217

Presumed name: GRB 230805B

BAT	13^h 50^m 59.28^s, +31° 11′ 06.0″
position:	(207.747, 31.185 ± 180″)
XRT	13^h 50^m 58.27^s, +31° 11′ 27.7″
position:	(207.74281, 31.19102 ± 1.9″)
UVOT	No position available.
Galactic N_HI:	1.35×10²⁰ cm^-2
Galactic E(B-V):	0.016 mag

Best RA:	13^h 50^m 58.27^s	= 207.74281 d
Best Dec:	+31° 11′ 27.7″	= 31.19102 d

Gal Lat:	76.4
Gal Long:	53.84

Sun angle:	66.82°, -4.8 hr East of Sun

GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

Sun angle for this burst.

UVOT data

No UVOT images are currently available.

XRT SPER data

SPER results page for this trigger.

There are 8 SPER messages, and 1 objects have been found

- Object 1 - enhanced position.
- RA (J2000) : 13 50 58.30 (31.19112)
- Dec (J2000): +31 11 28.0 ( 31.19068)
- Error (90%): 1.9
- Counts in Source: 119

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

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)	RA	Dec	Date reported	Source	Misc	Query

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
94.2	207.7625	31.1710	Gaia DR3 1457233097308653952	G=19.214901
137.6	207.7717	31.2201	TYC 2544-597-1	B=12.89, G=11.776328, H=10.505, J=10.802, K=10.449, V=12.23
191.4	207.7628	31.2414	NVSS J135103+311431
194.2	207.6956	31.1552	LAMOST J135046.95+310918.8	G=19.523922

There are 4 SIMBAD objects within the position error. The full list is here.

* 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*		Catalogue
6.1	207.7446	31.1908	Mag=21.7	NED
24.3	207.7504	31.1911		NED
24.7	207.7508	31.1900	Mag=22.5	NED
26.4	207.7509	31.1885	R=19.2, g=19.9, i=18.9, u=21.6, z=18.7	SDSS
26.4	207.7508	31.1886	Mag=19.9	NED
28.4	207.7408	31.1986		NED
29.0	207.7346	31.1872	Mag=23.6	NED
32.4	207.7329	31.1881	R=22.6, g=23.6, i=23.8, u=25.0, z=22.4	SDSS
32.4	207.7338	31.1958	Mag=21.9	NED
32.4	207.7329	31.1881	Mag=22.3	NED

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

There are 498 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
6.1	207.7448	31.1907	I=20.2, R=20.7, g=21.7, u=23.9, z=20.2	SDSS
6.5	207.7449	31.1908	B2=21.9, I=19.6	USNO-B1
24.7	207.7508	31.1901	I=21.9, R=21.9, g=22.3, u=22.8, z=21.7	SDSS
26.5	207.7509	31.1886	B1=20.6, B2=20.0, I=18.4, R1=19.3, R2=18.6	USNO-B1
29.0	207.7345	31.1873	I=22.1, R=22.7, g=23.5, u=24.4, z=21.5	SDSS
32.3	207.7348	31.1969	B1=21.0, B2=21.6, R2=20.3	USNO-B1
33.7	207.7343	31.1969	I=21.0, R=21.0, g=21.5, u=22.5, z=20.8	SDSS
35.3	207.7360	31.1831	I=21.5, R=21.9, g=22.4, u=23.9, z=21.3	SDSS
40.8	207.7537	31.1846	B1=20.9, B2=21.5	USNO-B1
42.2	207.7385	31.2022	I=24.2, R=24.9, g=25.6, u=22.5, z=23.1	SDSS

Queried USNO-B1, SDSS, 2MASS.

There are 167 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.