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Swift Trigger: 1162001

Presumed name: GRB 230328B

Back to trigger list.

BAT 19h 23m 56.64s, +80° 00′ 57.6″
position:(290.986, +80.016 ± 180″)
XRT 19h 24m 01.43s, +80° 00′ 35.1″
position:(291.00595, 80.00974 ± 1.9″)
UVOT 19h 24m 01.82s, +80° 00′ 34.2″
position:(291.0076, +80.0095 ± 0.6″)
Galactic NHI:4.93×1020 cm-2
Galactic E(B-V):0.075 mag
Best RA:19h 24m 01.82s= 291.0076 d
Best Dec:+80° 00′ 34.2″= +80.0095 d
Gal Lat:25.29
Gal Long:111.98
Sun angle:84.68°, 5.1 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 5 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′′291.0071380.00952GCN #33529GRB 230328B: Enhanced Swift-XRT positionVizier logo
0.3′′291.0076780.00958GCN #33527GRB 230328B: Swift detection of a burst with an optical afterglowVizier logo
0.3′′291.0075080.00958GCN #33536GRB 230328B: GIT optical follow-upVizier logo
0.3′′291.0076280.00959GCN #33528GRB 230328B: Mondy optical afterglow confirmationVizier logo
0.4′′291.0078380.00961GCN #33556GRB 230328B: Swift/UVOT DetectionVizier logo
21.3′′291.0366780.01258GCN #33541GRB 230328B: Swift-BAT refined analysisVizier 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
151.3291.146580.0440Gaia DR3 2294848820649897216G=20.513189Query 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
12.2290.997580.0067NEDQuery vizier around this object
12.3290.997580.0125NEDQuery vizier around this object
21.8290.976780.0122NEDQuery vizier around this object
25.0291.046280.0078NEDQuery vizier around this object
26.1291.035980.0148B=21.1, R=20.0APM-NQuery vizier around this object
27.0290.991780.0025NEDQuery vizier around this object
38.2290.955480.0039NEDQuery vizier around this object
38.8291.019279.9989NEDQuery vizier around this object
40.9290.978780.0197NEDQuery vizier around this object
41.8291.072980.0069NEDQuery vizier around this object


There are 257 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
12.5290.997780.0066h=15.4, j=15.7, k=14.62MASSQuery vizier around this object
12.5290.997480.0066B1=17.0, B2=17.8, I=15.7, R1=16.4, R2=16.4USNO-B1Query vizier around this object
27.3290.991480.0026B1=20.7, B2=20.7, I=15.9, R1=17.5, R2=17.8USNO-B1Query vizier around this object
27.5290.991680.0025h=14.0, j=14.6, k=13.82MASSQuery vizier around this object
36.6290.958980.0037B1=20.9, B2=20.8, I=18.6, R2=19.8USNO-B1Query vizier around this object
65.7290.958780.0260B2=21.0, I=18.1, R1=19.4, R2=18.7USNO-B1Query vizier around this object
71.1290.958780.0277B1=20.0, B2=19.7, I=17.7, R1=18.5, R2=17.8USNO-B1Query vizier around this object
73.0290.954780.0280B1=20.0, B2=20.8, I=18.0, R1=18.4, R2=18.8USNO-B1Query vizier around this object
78.6290.995780.0315h=15.1, j=15.6, k=15.52MASSQuery vizier around this object
78.9290.995580.0316B1=17.2, B2=17.8, I=15.9, R1=16.1, R2=16.6USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 111 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.