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Swift Trigger: 1075565

Presumed name: GRB 210930A

Back to trigger list.

BAT 13h 09m 44.40s, +48° 37′ 22.8″
position:(197.435, +48.623 ± 180″)
XRT 13h 09m 36.44s, +48° 37′ 42.7″
position:(197.40185, 48.62853 ± 3.8″)
UVOT No position available.
Galactic NHI:9.30×1019 cm-2
Galactic E(B-V):0.010 mag
Best RA:13h 09m 36.44s= 197.40185 d
Best Dec:+48° 37′ 42.7″= 48.62853 d
Gal Lat:68.21
Gal Long:114.82
Sun angle:52.25°, -0.7 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.


SPER results page for this trigger.

Image of the SPER data

There are 11 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
0.0′′197.4018548.62853GCN #30897GRB 210930A: Swift detection of a burstVizier logo
0.1′′197.4018748.62856GCN #30900GRB 210930A: Enhanced Swift-XRT positionVizier logo
30.6′′197.4145848.62975GCN #30917GRB 210930A: Swift-BAT refined analysisVizier logo

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).


RA*Dec*SIMBAD name Query

* 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
9.3197.399248.6264Mag=22.3NEDQuery vizier around this object
9.3197.399448.6265R=21.3, g=22.3, i=20.9, u=23.1, z=20.5SDSSQuery vizier around this object
10.7197.404648.6309R=24.4, g=25.2, i=25.2, u=23.0, z=19.8SDSSQuery vizier around this object
13.0197.397548.6308Mag=19.9NEDQuery vizier around this object
13.0197.397848.6309R=19.2, g=20.1, i=18.9, u=21.3, z=18.6SDSSQuery vizier around this object
13.5197.397648.6311B=20.7, R=18.9APM-NQuery vizier around this object
19.7197.402148.6339Mag=22.6NEDQuery vizier around this object
23.3197.394948.6331R=22.8, g=24.9, i=21.5, u=24.4, z=20.9SDSSQuery vizier around this object
28.3197.411248.6239NEDQuery vizier around this object
29.0197.413748.6275Mag=23.5NEDQuery vizier around this object


There are 472 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
13.1197.397848.6310B1=20.6, B2=20.1, I=18.7, R1=19.4, R2=18.7USNO-B1Query vizier around this object
19.7197.402248.6340I=21.6, R=21.8, g=22.6, u=24.9, z=22.1SDSSQuery vizier around this object
29.0197.414048.6276I=22.7, R=22.7, g=23.5, u=24.2, z=22.1SDSSQuery vizier around this object
35.9197.393648.6202B1=19.6, B2=18.9, I=18.6, R1=18.9, R2=18.6USNO-B1Query vizier around this object
36.1197.393748.6201I=18.4, R=18.5, g=18.9, u=19.7, z=18.3SDSSQuery vizier around this object
39.8197.386448.6328I=24.8, R=25.1, g=25.2, u=25.3, z=20.6SDSSQuery vizier around this object
43.4197.385648.6340I=22.1, R=22.5, g=23.3, u=24.0, z=22.6SDSSQuery vizier around this object
47.7197.421148.6249I=24.1, R=24.1, g=26.1, u=24.2, z=20.8SDSSQuery vizier around this object
49.7197.391248.6404I=21.8, R=24.3, g=25.3, u=24.2, z=23.4SDSSQuery vizier around this object
51.4197.411748.6158B2=21.8, R1=19.3USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 132 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.