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Swift Trigger: 946344

Presumed name: GRB 191227A

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BAT 21h 16m 40.80s, -16° 42′ 14.4″
position:(319.170, -16.704 ± 180″)
XRT No position available.
UVOT No position available.
Galactic NHI:5.42×100 cm-2
Galactic E(B-V):0.088 mag
Best RA:21h 16m 40.80s= 319.170 d
Best Dec:-16° 42′ 14.4″= -16.704 d
Gal Lat:-39.48
Gal Long:33.14
Sun angle:41.75°, -2.9 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′′319.17000-16.70400GCN #26595GRB 191227A: Swift detection of a burstVizier logo
2.2′′319.16950-16.70439GCN #26594Swift GRB191227.07: Global MASTER-Net observations report Vizier logo
47.3′′319.17200-16.71700GCN #26608GRB 191227A: Swift-BAT refined analysisVizier logo
93.9′′319.15533-16.72597GCN #26596Swift GRB191227A: Global MASTER-Net OT detectionVizier 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

* 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
13.4319.1667-16.7061NEDQuery vizier around this object
20.5319.1746-16.7075NEDQuery vizier around this object
24.0319.1633-16.7053NEDQuery vizier around this object
26.2319.1700-16.7114NEDQuery vizier around this object
26.2319.1700-16.7113B=21.8, R2=19.9, i=18.5SSSQuery vizier around this object
30.7319.1771-16.6986NEDQuery vizier around this object
38.0319.1796-16.7094NEDQuery vizier around this object
44.0319.1823-16.7008B=22.0, R2=20.6SSSQuery vizier around this object
44.8319.1825-16.7006NEDQuery vizier around this object
48.6319.1838-16.7069NEDQuery vizier around this object


There are 194 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
24.3319.1757-16.7000I=18.5, R2=19.4USNO-B1Query vizier around this object
26.1319.1700-16.7113B2=22.0, I=18.3, R2=19.4USNO-B1Query vizier around this object
30.8319.1769-16.6985B1=19.6, B2=19.6, I=17.7, R1=18.3, R2=18.0USNO-B1Query vizier around this object
38.4319.1796-16.7094B1=20.9, B2=20.4, I=18.0, R1=19.4, R2=18.7USNO-B1Query vizier around this object
41.4319.1696-16.6925B1=21.2, R1=19.9USNO-B1Query vizier around this object
45.7319.1827-16.7004B1=21.2, R2=19.4USNO-B1Query vizier around this object
51.4319.1849-16.7039B1=21.2, I=18.5USNO-B1Query vizier around this object
53.7319.1846-16.6987B2=20.9, R1=19.8, R2=19.1USNO-B1Query vizier around this object
59.9319.1818-16.6918B2=21.0, I=18.4, R1=19.9, R2=19.2USNO-B1Query vizier around this object
61.2319.1594-16.7177B2=20.9, I=17.5, R1=19.6, R2=18.9USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 108 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.