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Swift Trigger: 431764

Presumed name: GRB 100816A

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BAT 23h 26m 57.84s, +26° 33′ 37.8″
position:(351.741, 26.5605 ± 180″)
XRT 23h 26m 57.65s, +26° 34′ 44.0″
position:(351.7402, 26.5789 ± 2.1″)
UVOT No position available.
Galactic NHI:0.00×100 cm-2
Galactic E(B-V):0.086 mag
Best RA:23h 26m 57.65s= 351.7402 d
Best Dec:+26° 34′ 44.0″= 26.5789 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
0.3′′351.7401026.57887GCN #11110GRB 100816A: Enhanced Swift-XRT positionVizier logo
1.6′′351.7399226.57853GCN #11104GRB100816A: TNG optical afterglow confirmation.Vizier logo
1.6′′351.7398326.57858GCN #11102GRB 100816A: Swift detection of a possibly short burst with optical afterglowVizier logo
2.9′′351.7397126.57822GCN #11108GRB 100816A: CQUEAN riz-band Detection� Host Galaxy?Vizier logo
39.9′′351.7380026.56800GCN #11111GRB 100816A� 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
1.9351.739826.5785GRB 100816AQuery vizier around this object
169.0351.695126.60292MASX J23264681+2636104B=15.5, H=12.637, J=13.536, K=12.481Query 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
1.6351.739626.5786NEDQuery vizier around this object
34.1351.737826.5697B2=21.2, R2=20.6USNO-B1Query vizier around this object
91.4351.730226.5551B2=20.3, R1=19.5, R2=18.9USNO-B1Query vizier around this object
94.9351.736126.5528B=14.8, R=13.5APM-NQuery vizier around this object
106.4351.707226.5792B=21.3, R=20.0APM-NQuery vizier around this object
107.2351.718026.6011B1=16.3, I=15.5, R1=16.8, R2=15.3USNO-B1Query vizier around this object
109.2351.717326.6012B=16.8, R=16.4APM-NQuery vizier around this object
111.1351.716526.6013B1=16.9, I=16.7USNO-B1Query vizier around this object
114.1351.773326.5902B=21.3, R=20.0APM-NQuery vizier around this object
115.1351.715626.6021B1=18.2, I=17.4, R1=17.3USNO-B1Query vizier around this object


There are 43 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
23.0351.733826.5761h=16.2, j=16.6, k=15.82MASSQuery vizier around this object
23.1351.733726.5761B1=18.0, B2=18.1, I=17.0, R1=17.1, R2=17.2USNO-B1Query vizier around this object
23.3351.746326.5824B1=20.0, R2=20.8USNO-B1Query vizier around this object
42.3351.752026.5840B1=20.0, B2=21.1, R2=20.2USNO-B1Query vizier around this object
42.7351.753426.5778h=15.1, j=15.8, k=15.02MASSQuery vizier around this object
43.0351.753526.5778B1=17.7, B2=17.9, I=16.6, R1=16.9, R2=16.7USNO-B1Query vizier around this object
49.5351.726526.5851h=13.3, j=13.6, k=13.22MASSQuery vizier around this object
49.5351.726426.5851B1=15.4, B2=15.6, I=14.1, R1=14.5, R2=14.6USNO-B1Query vizier around this object
50.0351.728326.5879B1=19.5, B2=19.1, I=18.1, R1=18.8, R2=18.1USNO-B1Query vizier around this object
51.6351.754026.5716B1=20.0, B2=20.6, I=18.8, R1=19.3, R2=19.4USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 145 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.