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Swift Trigger: 863421

Presumed name: GRB 180925A

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BAT 21h 00m 51.12s, -64° 26′ 34.8″
position:(315.213, -64.443 ± 180″)
XRT 21h 00m 48.96s, -64° 27′ 24.1″
position:(315.2040, -64.4567 ± 2.2″)
UVOT No position available.
Galactic NHI:2.93×100 cm-2
Galactic E(B-V):0.036 mag
Best RA:21h 00m 48.96s= 315.2040 d
Best Dec:-64° 27′ 24.1″= -64.4567 d
Gal Lat:-38.08
Gal Long:330.5
Sun angle:106.33°, -8.9 hr East of Sun

1Sper #9 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.

Image of the SPER data

There are 11 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
0.8′′315.20380-64.45690GCN #23270GRB 180925A: Prompt enhanced Swift-XRT positionVizier logo
1.8′′315.20292-64.45689GCN #23274GRB 180925A: Swift/UVOT DetectionVizier logo
3.1′′315.20546-64.45727GCN #23268GRB 180925A: Swift detection of a burstVizier logo
5.1′′315.20075-64.45689GCN #23271GRB 180925A: Enhanced Swift-XRT positionVizier logo
27.1′′315.21200-64.45000GCN #23273GRB 180925A: 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
32.4315.1979-64.4653LEDA 322437Query 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
6.2315.2079-64.4563B=21.1, R2=20.4SSSQuery vizier around this object
8.8315.2058-64.4589NEDQuery vizier around this object
11.1315.2065-64.4596B=19.2, R2=18.6SSSQuery vizier around this object
16.2315.2113-64.4599B=19.6, R2=18.2, i=18.1SSSQuery vizier around this object
16.7315.2112-64.4600NEDQuery vizier around this object
18.4315.1937-64.4594NEDQuery vizier around this object
21.5315.2104-64.4620B=22.1SSSQuery vizier around this object
22.2315.2047-64.4505B=21.7SSSQuery vizier around this object
28.6315.2104-64.4642NEDQuery vizier around this object
29.5315.2109-64.4643B=18.6, R2=16.9, i=15.1SSSQuery vizier around this object


There are 136 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
11.0315.2065-64.4596B2=18.1, I=18.3, R1=19.0, R2=18.3USNO-B1Query vizier around this object
14.6315.2100-64.4598B2=18.6, I=18.7, R2=18.1USNO-B1Query vizier around this object
16.0315.1954-64.4591B2=14.2, I=12.1, R2=19.6USNO-B1Query vizier around this object
16.3315.2113-64.4599B2=19.0, I=18.4, R1=18.3, R2=18.2USNO-B1Query vizier around this object
16.5315.1938-64.4580B2=19.8, I=12.2, R2=13.2USNO-B1Query vizier around this object
16.7315.2115-64.4600h=17.3, j=16.7, k=15.72MASSQuery vizier around this object
18.1315.1940-64.4593h=11.5, j=12.0, k=11.52MASSQuery vizier around this object
18.1315.1940-64.4593B2=14.2, I=12.3, R1=12.7, R2=12.8USNO-B1Query vizier around this object
22.4315.2046-64.4505B2=20.3, R2=19.8USNO-B1Query vizier around this object
28.6315.2105-64.4641h=12.2, j=12.9, k=12.02MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 174 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.