Swift Trigger: 1034721

Presumed name: GRB 210226A

BAT	08^h 16^m 33.12^s, +57° 34′ 37.2″
position:	(124.138, +57.577 ± 180″)
XRT	08^h 16^m 27.48^s, +57° 35′ 02.0″
position:	(124.1145, 57.5839 ± 2.1″)
UVOT	No position available.
Galactic N_HI:	4.36×10⁰ cm^-2
Galactic E(B-V):	0.057 mag

Best RA:	08^h 16^m 27.48^s	= 124.1145 d
Best Dec:	+57° 35′ 02.0″	= 57.5839 d

Gal Lat:	33.91
Gal Long:	159.94

Sun angle:	124.20°, -9.7 hr East of Sun

¹Sper #6 auto processing.

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 6 SPER messages, and 1 objects have been found

- Object 1 - enhanced position.
- RA (J2000) : 08 16 27.51 (57.5838)
- Dec (J2000): +57 35 01.8 ( 57.58365)
- Error (90%): 2.1
- Counts in Source: 294

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	Source	Misc
0.2′′	124.11440	57.58390	GCN #29568	GRB 210226A: Swift detection of a burst
1.5′′	124.11528	57.58394	GCN #29571	GRB 210226A: Enhanced Swift-XRT position
1.5′′	124.11529	57.58394	GCN #29656	GRB 210226A: GIT optical upper limit
74.3′′	124.15292	57.58525	GCN #29579	GRB 210226A: Swift-BAT refined analysis

Catalogue Searches. Searched 3.33′ 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
63.1	124.1467	57.5871	GPM 124.146742+57.587151	B=15.1, G=14.9360, H=13.388, J=13.785, K=13.356
64.7	124.1195	57.6017	GPM 124.119430+57.601734	B=14.7, G=14.4174, H=12.930, J=13.216, K=12.828, V=14.1
82.1	124.1267	57.5620	SDSS J081630.40+573343.3	g=21.155, i=20.400, r=20.587, u=21.467, z=19.910
103.2	124.1352	57.5575	2MASX J08163238+5733262	B=17.5, H=13.097, J=13.810, K=12.930, g=16.191, i=15.327, r=15.626, u=17.369, z=15.078

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
7.9	124.1108	57.5828	Mag=20.4	NED
8.1	124.1108	57.5829	B1=20.0, B2=20.1, I=18.4, R1=18.9, R2=19.0	USNO-B1
11.4	124.1204	57.5839	Mag=20.4	NED
14.3	124.1200	57.5811	Mag=20.4	NED
17.4	124.1054	57.5844	Mag=24.5	NED
19.1	124.1188	57.5886	Mag=20.8	NED
24.2	124.1231	57.5888	B=21.4, R=19.5	APM-N
24.4	124.1233	57.5889	Mag=20.2	NED
24.4	124.1232	57.5888	R=19.8, g=20.3, i=19.4, u=21.4, z=19.3	SDSS
27.7	124.1283	57.5825	Mag=23.6	NED

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

There are 474 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
7.9	124.1109	57.5828	I=18.7, R=19.1, g=20.4, u=22.5, z=18.5	SDSS
17.4	124.1056	57.5845	I=23.5, R=22.6, g=24.5, u=23.9, z=23.7	SDSS
19.1	124.1190	57.5886	I=17.5, R=19.1, g=20.7, u=23.0, z=16.6	SDSS
19.1	124.1190	57.5886	h=14.6, j=15.1, k=14.3	2MASS
19.6	124.1191	57.5888	B1=20.4, B2=20.5, I=17.0, R1=18.8, R2=18.8	USNO-B1
24.4	124.1231	57.5889	B1=19.9, B2=19.7, R1=19.4, R2=19.3	USNO-B1
27.6	124.1286	57.5825	I=20.8, R=21.5, g=23.4, u=25.5, z=20.5	SDSS
40.1	124.1320	57.5899	I=18.9, R=19.4, g=20.8, u=23.2, z=18.6	SDSS
40.3	124.1320	57.5900	B2=21.0, I=18.7, R1=19.4, R2=19.1	USNO-B1
45.0	124.1098	57.5717	I=18.6, R1=19.8, R2=19.7	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 220 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.