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Swift Trigger: 767284

Presumed name: GRB 170810A

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BAT 12h 31m 48.00s, +03° 38′ 49.2″
position:(187.950, +3.647 ± 180″)
XRT 12h 31m 45.34s, +03° 39′ 37.1″
position:(187.9389, 3.6603 ± 2.1″)
UVOT 12h 31m 45.31s, +03° 39′ 38.9″
position:(187.9388, +3.6608 ± 1.1″)
Galactic NHI:2.07×100 cm-2
Galactic E(B-V):0.024 mag
Best RA:12h 31m 45.31s= 187.9388 d
Best Dec:+03° 39′ 38.9″= +3.6608 d
Gal Lat:66.07
Gal Long:290.75
Sun angle:47.98°, -3.2 hr East of Sun

1Sper #3 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

UVOT white image

white image

UVOT white image

white image

Blink images with DSS (link via GSFC)


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′′187.938793.66081GCN #21450GRB 170810A: Swift detection of a burst with a bright optical counterpartVizier logo
0.3′′187.938873.66081GCN #21454GRB 170810A: Swift/UVOT DetectionVizier logo
0.3′′187.938773.66071GCN #21449GRB 170810A: MASTER-NET very bright OT detection Vizier logo
0.6′′187.938943.66072GCN #21492GRB 170810A: VLA DetectionVizier logo
1.0′′187.938523.66084GCN #21451GRB 170810A: Enhanced Swift-XRT positionVizier logo
39.2′′187.928333.66383GCN #21458GRB 170810A: Swift-BAT refined analysisVizier logo

There are 12 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
84.4187.96223.6573[VV2006] J123151.0+033926B=19.70, V=19.50, g=19.393, i=19.239, r=19.376, u=19.52, z=19.26Query 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
13.9187.94003.6572Mag=23.7NEDQuery vizier around this object
18.6187.93383.6614Mag=20.3NEDQuery vizier around this object
18.7187.93433.6578R=19.3, g=20.5, i=19.0, u=21.3, z=18.8SDSSQuery vizier around this object
18.9187.93423.6578B2=20.9, I=18.2, R1=19.3, R2=18.9USNO-B1Query vizier around this object
19.2187.93373.6613R=19.3, g=20.3, i=18.9, u=21.1, z=18.5SDSSQuery vizier around this object
19.3187.93423.6578Mag=20.3NEDQuery vizier around this object
22.3187.93923.6669Mag=21.4NEDQuery vizier around this object
24.1187.93943.6670R=20.5, g=21.7, i=20.2, u=22.2, z=19.5SDSSQuery vizier around this object
27.8187.93213.6639R=22.4, g=23.0, i=21.6, u=25.3, z=22.6SDSSQuery vizier around this object
29.5187.94173.6526R=22.7, g=24.7, i=21.6, u=23.7, z=21.6SDSSQuery vizier around this object


There are 327 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
12.1187.94023.6572I=21.5, R=22.1, g=23.9, u=24.8, z=20.7SDSSQuery vizier around this object
17.8187.93463.6579B2=20.6, R2=19.2USNO-B1Query vizier around this object
19.3187.93363.6614B2=20.5, I=18.4, R1=19.0, R2=19.3USNO-B1Query vizier around this object
23.7187.93803.6668B1=20.7, B2=21.6, I=18.8USNO-B1Query vizier around this object
27.1187.94563.6637I=21.9, R=23.6, g=24.3, u=24.3, z=21.1SDSSQuery vizier around this object
29.4187.93093.6586I=19.0, R=19.1, g=19.5, u=20.4, z=18.9SDSSQuery vizier around this object
36.7187.94843.6641I=21.3, R=21.4, g=21.8, u=22.9, z=21.0SDSSQuery vizier around this object
37.4187.93433.6696B2=21.9, R1=19.3, R2=20.6USNO-B1Query vizier around this object
42.8187.92853.6660I=20.3, R=21.9, g=23.3, u=23.2, z=19.5SDSSQuery vizier around this object
42.9187.93923.6722I=21.6, R=23.0, g=25.3, u=25.2, z=20.8SDSSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 137 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.