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Swift Trigger: 873178

Presumed name: GRB 181123A

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BAT 18h 58m 36.24s, -08° 14′ 13.2″
position:(284.651, -8.237 ± 180″)
XRT No position available.
UVOT No position available.
Galactic NHI:1.97×100 cm-2
Galactic E(B-V):0.311 mag
Best RA:18h 58m 36.24s= 284.651 d
Best Dec:-08° 14′ 13.2″= -8.237 d
Gal Lat:-5.33
Gal Long:26.39
Sun angle:46.24°, -3.1 hr East of Sun

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.


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′′284.65100-8.23700GCN #23431GRB 181123A: Swift detection of a burstVizier logo
1.3′′284.65083-8.23731GCN #23442GRB 181123A� Swift-BAT refined analysisVizier logo
1.5′′284.65070-8.23730GCN #23446Swift J1858.6-0814/GRB 181123A: Swift/BAT location correction to GCN 23442Vizier logo
19.8′′284.64546-8.23744GCN #23900Trigger 889483: Swift detection of Swift J1858.6-0814Vizier logo

Catalogue Searches. Searched 3.33′ around BAT 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
169.7284.6985-8.2408HD 176059B=9.40, G=8.7484, V=8.91Query vizier around this object
179.2284.6045-8.2559TYC 5706-172-1B=11.79, G=11.6487, H=10.681, J=10.822, K=10.582, V=11.30Query vizier around this object
196.8284.6016-8.2126TYC 5706-1554-1B=12.32, G=11.2654, H=9.654, J=9.959, K=9.574, V=11.66Query vizier around this object

There are 3 SIMBAD objects within the position error. The full list is here.

* 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
3.4284.6504-8.2361NEDQuery vizier around this object
4.8284.6500-8.2381NEDQuery vizier around this object
8.6284.6533-8.2369NEDQuery vizier around this object
8.7284.6534-8.2366I=15.6, R2=19.0USNO-B1Query vizier around this object
8.9284.6492-8.2389NEDQuery vizier around this object
11.6284.6542-8.2365B1=17.8, R2=14.6USNO-B1Query vizier around this object
12.6284.6525-8.2400NEDQuery vizier around this object
13.5284.6515-8.2407B1=20.3, B2=19.9, I=18.2, R2=19.1USNO-B1Query vizier around this object
14.9284.6550-8.2367NEDQuery vizier around this object
16.9284.6557-8.2364B1=15.7, B2=14.8, I=13.4, R1=14.4, R2=14.0USNO-B1Query vizier around this object


There are 1116 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
3.4284.6505-8.2362h=15.7, j=16.5, k=15.42MASSQuery vizier around this object
3.7284.6502-8.2363B2=20.4, I=17.4, R1=18.2, R2=17.1USNO-B1Query vizier around this object
3.7284.6502-8.2363h=0.0, j=0.0, k=18.22MASSQuery vizier around this object
4.8284.6501-8.2380h=14.9, j=15.2, k=14.52MASSQuery vizier around this object
5.9284.6497-8.2380h=15.0, j=17.2, k=15.82MASSQuery vizier around this object
5.9284.6497-8.2380B1=17.2, B2=16.4, I=15.4, R1=15.8, R2=15.7USNO-B1Query vizier around this object
8.7284.6534-8.2369h=15.1, j=15.7, k=15.32MASSQuery vizier around this object
8.7284.6534-8.2366h=0.0, j=0.0, k=0.02MASSQuery vizier around this object
8.9284.6493-8.2388h=15.4, j=16.0, k=15.32MASSQuery vizier around this object
10.6284.6537-8.2358B1=19.1, B2=17.6, I=16.8, R2=18.2USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 3040 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.