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Swift Trigger: 1080859

Presumed name: GRB 211023B

Back to trigger list.

BAT 11h 21m 12.48s, +39° 08′ 13.2″
position:(170.302, 39.137 ± 180″)
XRT 11h 21m 14.52s, +39° 08′ 09.4″
position:(170.31048, 39.13595 ± 3.7″)
UVOT 11h 21m 14.30s, +39° 08′ 08.5″
position:(170.3096, +39.1357 ± 0.8″)
Galactic NHI:2.15×1020 cm-2
Galactic E(B-V):0.022 mag
Best RA:11h 21m 14.30s= 170.3096 d
Best Dec:+39° 08′ 08.5″= +39.1357 d
Gal Lat:67.72
Gal Long:174.61
Sun angle:61.83°, 2.5 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.


SPER results page for this trigger.

Image of the SPER data

There are 7 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
0.3′′170.3096339.13578GCN #30960GRB 211023B: Swift detection of a possibly short burst with an optical counterpartVizier logo
0.4′′170.3097139.13578GCN #30975GRB 211023B: Swift/UVOT DetectionVizier logo
2.8′′170.3087139.13534GCN #30966GRB 211023B: Enhanced Swift-XRT positionVizier logo
15.2′′170.3137539.13297GCN #30979GRB 211023B: Swift-BAT refined analysisVizier logo
36.9′′170.3017239.14392GCN #31003GRB 211023B: Mondy optical afterglow confirmationVizier logo

There are 12 matches in total. See the full table for details.

Catalogue Searches. Searched 200′ 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
190.7170.352339.1778SDSS J112124.54+391040.2G=17.3486, g=17.347, i=17.465, r=17.373, u=18.600, z=17.569Query vizier around this object
194.1170.242939.1234TYC 3013-206-1B=11.72, G=10.1354, H=7.726, J=8.386, K=7.599, V=10.42Query 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
5.0170.311339.1364NEDQuery vizier around this object
7.6170.312839.1370R=22.0, g=23.2, i=22.3, u=23.2, z=21.6SDSSQuery vizier around this object
10.1170.312939.1369Mag=22.2NEDQuery vizier around this object
14.8170.315739.1367B=21.8, R=20.0APM-NQuery vizier around this object
16.3170.304239.1342NEDQuery vizier around this object
21.1170.312139.1303NEDQuery vizier around this object
21.7170.312239.1301R=22.2, g=26.0, i=21.3, u=22.0, z=21.2SDSSQuery vizier around this object
25.5170.310639.1430R=21.1, g=22.2, i=21.1, u=22.4, z=20.6SDSSQuery vizier around this object
26.5170.310439.1431Mag=22.3NEDQuery vizier around this object
32.8170.321239.1364NEDQuery vizier around this object


There are 332 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
37.5170.301739.1438I=14.9, R=15.5, g=16.9, u=19.5, z=14.6SDSSQuery vizier around this object
37.7170.301739.1439B1=17.5, B2=17.3, I=14.6, R1=15.4, R2=15.3USNO-B1Query vizier around this object
37.8170.301739.1439h=12.8, j=13.4, k=12.62MASSQuery vizier around this object
38.5170.297539.1323I=22.1, R=22.2, g=23.5, u=26.2, z=22.2SDSSQuery vizier around this object
52.4170.302939.1492B2=20.8, R2=20.0USNO-B1Query vizier around this object
57.9170.310639.1520I=24.7, R=22.5, g=24.2, u=23.0, z=23.2SDSSQuery vizier around this object
59.5170.300939.1507I=24.9, R=22.6, g=25.6, u=23.4, z=24.3SDSSQuery vizier around this object
65.1170.287739.1320I=21.9, R=22.3, g=22.8, u=23.2, z=21.3SDSSQuery vizier around this object
67.9170.300339.1188B2=20.0, R1=19.7, R2=20.2USNO-B1Query vizier around this object
76.7170.294539.1533I=20.5, R=20.7, g=20.9, u=22.0, z=20.7SDSSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 103 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.