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Swift Trigger: 1047531

Presumed name: GRB 210509A

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BAT 23h 21m 24.48s, +06° 40′ 30.0″
position:(350.352, +6.675 ± 180″)
XRT 23h 21m 29.83s, +06° 40′ 16.8″
position:(350.37430, 6.67134 ± 4.4″)
UVOT No position available.
Galactic NHI:5.34×1020 cm-2
Galactic E(B-V):0.090 mag
Best RA:23h 21m 29.83s= 350.37430 d
Best Dec:+06° 40′ 16.8″= 6.67134 d
Gal Lat:-49.8
Gal Long:86.88
Sun angle:55.70°, 3.7 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.


SPER results page for this trigger.

Image of the SPER data

There are 4 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′′350.374306.67134GCN #29971GRB 210509A: Swift-XRT observationsVizier logo
4.7′′350.375636.67125GCN #29973GRB 210509A: Enhanced Swift-XRT positionVizier logo
73.4′′350.354176.67528GCN #29970GRB 210509A: Swift detection of a burstVizier logo
85.3′′350.363336.65031GCN #29975GRB 210509A: Swift-BAT refined analysisVizier logo

Catalogue Searches. Searched 0′ 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
108.0350.39826.6529GSC 00584-00247B=14.6, G=13.8579, H=12.520, J=12.798, K=12.48, R=14.20, g=14.211, i=13.763, r=13.902, u=15.363, z=13.672Query vizier around this object

* RA/Dec in equinox J2000

X-ray sources

RA*Dec* Source table2Observatory Query