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Swift Trigger: 869494

Presumed name: GRB 181030A

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BAT 09h 47m 41.28s, +14° 39′ 28.8″
position:(146.922, +14.658 ± 180″)
XRT 09h 47m 42.02s, +14° 39′ 29.5″
position:(146.9251, 14.6582 ± 4.8″)
UVOT No position available.
Galactic NHI:3.11×100 cm-2
Galactic E(B-V):0.033 mag
Best RA:09h 47m 42.02s= 146.9251 d
Best Dec:+14° 39′ 29.5″= 14.6582 d
Gal Lat:45.58
Gal Long:219.63
Sun angle:72.14°, 4.5 hr West

1Sper #0 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

No UVOT images are currently available.


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
0.0′′146.9251014.65820GCN #23389GRB 181030A: Swift detection of a burst with a possible optical counterpartVizier logo
4.6′′146.9260314.65731GCN #23391GRB 181030A: Enhanced Swift-XRT positionVizier logo
32.0′′146.9160014.65700GCN #23397GRB 181030A� Swift-BAT refined analysisVizier logo

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

* 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
7.0146.925814.6564R=27.7, g=29.5, i=26.3, u=20.8, z=18.4SDSSQuery vizier around this object
22.9146.927214.6522R=22.6, g=23.4, i=21.7, u=23.5, z=21.5SDSSQuery vizier around this object
23.6146.923114.6520R=22.1, g=23.1, i=21.4, u=23.7, z=21.0SDSSQuery vizier around this object
23.6146.922914.6519Mag=22.5NEDQuery vizier around this object
27.4146.918314.6544Mag=22.0NEDQuery vizier around this object
32.6146.926714.6672Mag=23.3NEDQuery vizier around this object
32.6146.926714.6671R=21.5, g=23.1, i=20.7, u=24.4, z=20.2SDSSQuery vizier around this object
36.2146.915514.6544R=24.3, g=25.4, i=24.5, u=23.4, z=21.2SDSSQuery vizier around this object
38.8146.913714.6569Mag=22.1NEDQuery vizier around this object
38.8146.914014.6571R=21.2, g=22.4, i=20.8, u=22.5, z=20.6SDSSQuery vizier around this object


There are 349 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
24.0146.931914.6573I=25.0, R=25.7, g=23.9, u=25.3, z=21.2SDSSQuery vizier around this object
27.4146.918214.6545I=21.0, R=21.2, g=21.9, u=23.4, z=20.7SDSSQuery vizier around this object
38.5146.914114.6572I=19.0, R1=19.4USNO-B1Query vizier around this object
44.2146.934614.6501I=22.5, R=23.2, g=24.5, u=25.1, z=22.9SDSSQuery vizier around this object
54.1146.940614.6589I=24.9, R=24.1, g=26.2, u=24.6, z=21.3SDSSQuery vizier around this object
54.4146.910314.6534I=23.2, R=24.2, g=23.3, u=25.0, z=20.8SDSSQuery vizier around this object
57.0146.928714.6736B1=16.7, B2=16.0, I=14.1, R1=14.9, R2=14.7USNO-B1Query vizier around this object
57.0146.928514.6737h=12.4, j=13.0, k=12.32MASSQuery vizier around this object
57.0146.928514.6737I=14.4, R=14.8, g=15.9, u=18.2, z=14.2SDSSQuery vizier around this object
60.7146.939114.6481I=22.4, R=22.8, g=23.7, u=23.3, z=21.8SDSSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 136 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.