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Swift Trigger: 1149250

Presumed name: GRB 230116C

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BAT 14h 53m 51.12s, -16° 52′ 15.6″
position:(223.463, -16.871 ± 180″)
XRT No position available.
UVOT No position available.
Galactic NHI:7.95×1020 cm-2
Galactic E(B-V):0.104 mag
Best RA:14h 53m 51.12s= 223.463 d
Best Dec:-16° 52′ 15.6″= -16.871 d
Gal Lat:36.92
Gal Long:340.48
Sun angle:69.91°, 5.0 hr West

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′′223.46300-16.87100GCN #33173GRB 230116C: Swift detection of a burstVizier logo
43.8′′223.46667-16.88264GCN #33193GRB 230116C: Swift-BAT refined analysisVizier logo

Catalogue Searches. Searched 200′ 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
14.3223.4649-16.8675UCAC4 366-066704B=14.800, G=13.768897, H=12.096, J=12.445, K=12.051, R=13.982, V=14.019, g=14.387, i=13.590, r=13.811Query vizier around this object
93.4223.4722-16.8954BD-16 3960B=11.580, G=9.905483, H=7.486, J=8.066, K=7.330, V=10.325, g=10.958, i=9.437, r=9.934Query 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
8.6223.4612-16.8693I=18.5, R2=20.0USNO-B1Query vizier around this object
8.6223.4613-16.8692NEDQuery vizier around this object
14.3223.4650-16.8675NEDQuery vizier around this object
21.2223.4683-16.8739NEDQuery vizier around this object
21.9223.4631-16.8649B2=20.1, I=18.2, R1=18.3, R2=19.0USNO-B1Query vizier around this object
23.6223.4667-16.8764NEDQuery vizier around this object
26.6223.4646-16.8781NEDQuery vizier around this object
34.5223.4654-16.8617B=21.9, R2=21.0SSSQuery vizier around this object
34.6223.4730-16.8710I=18.1, R1=19.0USNO-B1Query vizier around this object
35.5223.4733-16.8708NEDQuery vizier around this object


There are 182 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
8.6223.4613-16.8693h=16.1, j=16.7, k=15.62MASSQuery vizier around this object
14.2223.4648-16.8674B1=15.3, B2=14.8, I=13.1, R1=13.9, R2=13.7USNO-B1Query vizier around this object
14.3223.4649-16.8675h=12.1, j=12.4, k=12.12MASSQuery vizier around this object
17.4223.4585-16.8689B1=18.4, B2=18.2, I=18.2, R1=18.1, R2=17.8USNO-B1Query vizier around this object
20.8223.4634-16.8652B1=20.7, I=18.3, R2=18.9USNO-B1Query vizier around this object
21.0223.4628-16.8768B1=20.7, B2=20.7, R2=19.3USNO-B1Query vizier around this object
21.3223.4684-16.8739h=15.6, j=16.0, k=15.12MASSQuery vizier around this object
21.4223.4684-16.8739B1=19.3, B2=18.7, I=17.0, R1=17.3, R2=17.4USNO-B1Query vizier around this object
21.7223.4691-16.8725B2=20.1, I=18.4, R1=18.8, R2=19.0USNO-B1Query vizier around this object
26.6223.4648-16.8782h=16.2, j=16.7, k=15.92MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 156 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.