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Swift Trigger: 1034721

Presumed name: GRB 210226A

Back to trigger list.

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


SPER results page for this trigger.

Image of the SPER data

There are 6 SPER messages, and 1 objects have been found

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 DecDate reportedSource MiscQuery
0.2′′124.1144057.58390GCN #29568GRB 210226A: Swift detection of a burstVizier logo
1.5′′124.1152857.58394GCN #29571GRB 210226A: Enhanced Swift-XRT positionVizier logo
1.5′′124.1152957.58394GCN #29656GRB 210226A: GIT optical upper limitVizier logo
74.3′′124.1529257.58525GCN #29579GRB 210226A: Swift-BAT refined analysisVizier logo

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).


RA*Dec*SIMBAD name Query
63.1124.146757.5871GPM 124.146742+57.587151B=15.1, G=14.9360, H=13.388, J=13.785, K=13.356Query vizier around this object
64.7124.119557.6017GPM 124.119430+57.601734B=14.7, G=14.4174, H=12.930, J=13.216, K=12.828, V=14.1Query vizier around this object
82.1124.126757.5620SDSS J081630.40+573343.3g=21.155, i=20.400, r=20.587, u=21.467, z=19.910Query vizier around this object
103.2124.135257.55752MASX J08163238+5733262B=17.5, H=13.097, J=13.810, K=12.930, g=16.191, i=15.327, r=15.626, u=17.369, z=15.078Query vizier around this object

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 table2Observatory Query

Queried the X-ray MASTER catalogue.

* RA/Dec in equinox J2000

1Energy band for count-rate is mission specific.


RA*Dec*Redshift CatalogueQuery
7.9124.110857.5828Mag=20.4NEDQuery vizier around this object
8.1124.110857.5829B1=20.0, B2=20.1, I=18.4, R1=18.9, R2=19.0USNO-B1Query vizier around this object
11.4124.120457.5839Mag=20.4NEDQuery vizier around this object
14.3124.120057.5811Mag=20.4NEDQuery vizier around this object
17.4124.105457.5844Mag=24.5NEDQuery vizier around this object
19.1124.118857.5886Mag=20.8NEDQuery vizier around this object
24.2124.123157.5888B=21.4, R=19.5APM-NQuery vizier around this object
24.4124.123357.5889Mag=20.2NEDQuery vizier around this object
24.4124.123257.5888R=19.8, g=20.3, i=19.4, u=21.4, z=19.3SDSSQuery vizier around this object
27.7124.128357.5825Mag=23.6NEDQuery vizier around this object


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


RA*Dec* CatalogueQuery
7.9124.110957.5828I=18.7, R=19.1, g=20.4, u=22.5, z=18.5SDSSQuery vizier around this object
17.4124.105657.5845I=23.5, R=22.6, g=24.5, u=23.9, z=23.7SDSSQuery vizier around this object
19.1124.119057.5886I=17.5, R=19.1, g=20.7, u=23.0, z=16.6SDSSQuery vizier around this object
19.1124.119057.5886h=14.6, j=15.1, k=14.32MASSQuery vizier around this object
19.6124.119157.5888B1=20.4, B2=20.5, I=17.0, R1=18.8, R2=18.8USNO-B1Query vizier around this object
24.4124.123157.5889B1=19.9, B2=19.7, R1=19.4, R2=19.3USNO-B1Query vizier around this object
27.6124.128657.5825I=20.8, R=21.5, g=23.4, u=25.5, z=20.5SDSSQuery vizier around this object
40.1124.132057.5899I=18.9, R=19.4, g=20.8, u=23.2, z=18.6SDSSQuery vizier around this object
40.3124.132057.5900B2=21.0, I=18.7, R1=19.4, R2=19.1USNO-B1Query vizier around this object
45.0124.109857.5717I=18.6, R1=19.8, R2=19.7USNO-B1Query vizier around this object

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.