Swift Trigger: 1102329

Presumed name: GRB 220412B

BAT	21^h 23^m 10.56^s, -00° 13′ 22.8″
position:	(320.794, -0.223 ± 180″)
XRT	No position available.
UVOT	No position available.
Galactic N_HI:	4.03×10²⁰ cm^-2
Galactic E(B-V):	0.052 mag

Best RA:	21^h 23^m 10.56^s	= 320.794 d
Best Dec:	-00° 13′ 22.8″	= -0.223 d

Gal Lat:	-33.29
Gal Long:	52.27

Sun angle:	60.41°, 4.0 hr West

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.

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

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)	RA	Dec	Source	Misc
0.0′′	320.79400	-0.22300	GCN #31886	GRB 220412B: Swift detection of a short burst
0.0′′	320.79400	-0.22300	GCN #31892	GRB 220412B: GIT optical upper limit
187.9′′	320.75792	-0.26069	GCN #31910	GRB 220412B: Swift-BAT refined analysis

Catalogue Searches. Searched 200′ around BAT 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
35.8	320.8008	-0.2302	WiggleZ R22J212312201-00134859	g=23.02, r=22.26, z=21.60
114.8	320.8227	-0.2369	2SLAQ J212317.44-001413.0	V=20.34
120.1	320.7928	-0.2563	2SLAQ J212310.26-001522.8	B=21.37, V=21.08, g=21.533, i=21.055, r=21.354, u=21.959, z=21.079
143.7	320.7764	-0.1872	2MASS J21230634-0011139	G=12.1871, H=10.000, J=10.583, K=9.888
144.7	320.8109	-0.1865	WiggleZ R22J212314625-00111143	g=21.83, r=20.92, z=20.13
151.8	320.7560	-0.2412	SDSS J212301.43-001428.4	g=20.915, i=20.990, r=20.897, u=21.637, z=20.7244
164.1	320.7927	-0.2686	WiggleZ R22J212310251-00160667	g=21.81, r=21.24, z=20.73
199.8	320.8052	-0.2773	2SLAQ J212313.25-001638.3	B=21.57, V=21.57, g=21.682, i=21.261, r=21.623, u=22.048, z=22.224

There are 8 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
9.0	320.7963	-0.2221	R=22.0, g=22.2, i=21.1, u=26.2, z=22.6	SDSS
9.8	320.7962	-0.2217		NED
18.2	320.7892	-0.2244		NED
20.3	320.7950	-0.2286	Mag=19.2	NED
25.3	320.7870	-0.2220	R=19.7, g=20.1, i=19.5, u=21.2, z=19.4	SDSS
25.3	320.7871	-0.2219	Mag=20.1	NED
27.0	320.7967	-0.2300	Mag=21.1	NED
27.5	320.7862	-0.2242	Mag=23.1	NED
27.6	320.7972	-0.2299	B=21.3, R=19.4	APM-N
29.2	320.7867	-0.2194	R=23.0, g=24.8, i=21.9, u=24.1, z=21.5	SDSS

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

There are 628 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
20.2	320.7950	-0.2285	B1=20.0, B2=19.1, I=17.2, R1=17.6, R2=17.7	USNO-B1
20.4	320.7950	-0.2286	I=17.4, R=17.9, g=19.2, u=21.7, z=17.1	SDSS
20.4	320.7950	-0.2286	h=15.1, j=15.9, k=15.3	2MASS
25.6	320.7870	-0.2220	B1=20.6, B2=20.1, I=18.7, R1=19.6, R2=19.6	USNO-B1
26.7	320.7969	-0.2298	B1=21.0, B2=20.9, R1=19.0, R2=19.9	USNO-B1
27.0	320.7969	-0.2299	I=19.6, R=20.0, g=21.1, u=23.2, z=19.4	SDSS
27.5	320.7865	-0.2241	I=21.5, R=21.9, g=23.1, u=24.8, z=21.7	SDSS
29.6	320.7964	-0.2309	I=21.5, R=22.8, g=23.8, u=23.3, z=21.4	SDSS
29.7	320.7857	-0.2233	I=22.1, R=22.9, g=24.8, u=25.3, z=21.1	SDSS
30.1	320.7884	-0.2292	B1=20.3, B2=19.9, I=17.5, R1=18.4, R2=18.3	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 352 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.