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Swift Trigger: 359530

Presumed name: GRB 090809

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BAT 21h 54m 34.80s, -00° 04′ 58.8″
position:(328.645, -0.083 ± 180″)
XRT 21h 54m 42.72s, -00° 05′ 01.7″
position:(328.6780, -0.0838 ± 3.4″)
UVOT No position available.
Galactic NHI:0.00×100 cm-2
Galactic E(B-V):0.094 mag
Best RA:21h 54m 42.72s= 328.6780 d
Best Dec:-00° 05′ 01.7″= -0.0838 d
Gal Lat:
Gal Long:
Sun angle:not found

GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

Sun angle for this burst.

UVOT data

UVOT unknown image

unknown image

UVOT unknown image

unknown image

Blink images with DSS (link via GSFC)


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 DecDate reportedSource MiscQuery
3.2′′328.67771-0.08464GCN #9754GRB 090809: Swift detection of a burst with a possible optical counterpartVizier logo
6.8′′328.67987-0.08386GCN #9755GRB 090809: afterglow confirmation at the NOTVizier logo
7.1′′328.67996-0.08384GCN #9758GRB090809: Swift/UVOT observationsVizier logo
7.6′′328.68012-0.08366GCN #9757GRB 090809: Enhanced Swift-XRT positionVizier logo
46.9′′328.66500-0.08300GCN #9756GRB 090809: Swift-BAT refined analysisVizier logo

There are 11 matches in total. See the full table for details.

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
54.8328.6790-0.09902MASS J21544295-0005563B=18.2, H=15.417, J=16.127, K=15.509, R=17.3Query vizier around this object
173.5328.6548-0.0415SDSS J215437.15-000229.4g=20.551, i=20.146, r=20.415, u=20.786, z=20.150Query vizier around this object

* 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
6.8328.6800-0.0839NEDQuery vizier around this object
8.4328.6796-0.0856Mag=22.3NEDQuery vizier around this object
21.4328.6721-0.0822Mag=24.1NEDQuery vizier around this object
26.1328.6852-0.0838R=21.2, g=22.4, i=20.9, u=23.1, z=20.4SDSSQuery vizier around this object
26.1328.6850-0.0839Mag=22.5NEDQuery vizier around this object
26.2328.6764-0.0909R=23.0, g=24.9, i=21.4, u=24.2, z=20.9SDSSQuery vizier around this object
30.9328.6692-0.0833Mag=20.1NEDQuery vizier around this object
31.7328.6692-0.0825Mag=23.2NEDQuery vizier around this object
32.4328.6712-0.0779R=22.9, g=25.3, i=21.6, u=23.3, z=21.1SDSSQuery vizier around this object
32.4328.6847-0.0778R=20.8, g=21.8, i=19.2, u=20.0, z=19.7SDSSQuery vizier around this object


There are 408 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
8.4328.6795-0.0856I=20.1, R=20.9, g=22.2, u=23.7, z=19.5SDSSQuery vizier around this object
14.0328.6809-0.0864B2=21.1, R1=20.2USNO-B1Query vizier around this object
21.3328.6723-0.0822I=22.1, R=22.6, g=24.2, u=25.1, z=21.1SDSSQuery vizier around this object
24.9328.6848-0.0824B2=21.3, R1=20.1, R2=20.3USNO-B1Query vizier around this object
30.9328.6694-0.0834h=15.0, j=15.7, k=14.92MASSQuery vizier around this object
30.9328.6694-0.0834I=17.6, R=18.6, g=20.1, u=22.7, z=17.0SDSSQuery vizier around this object
31.1328.6694-0.0833B2=20.8, I=17.3, R1=18.5, R2=18.3USNO-B1Query vizier around this object
31.7328.6693-0.0825I=20.4, R=21.4, g=23.2, u=24.7, z=20.1SDSSQuery vizier around this object
37.4328.6820-0.0742I=13.3, R=13.4, g=14.1, u=15.4, z=13.4SDSSQuery vizier around this object
37.5328.6821-0.0742h=11.8, j=12.2, k=11.82MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 246 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.