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Swift Trigger: 1215912

Presumed name: GRB 240218A

Back to trigger list.

BAT 10h 47m 07.44s, +01° 18′ 14.4″
position:(161.781, +1.304 ± 180″)
XRT 10h 47m 11.36s, +01° 16′ 45.8″
position:(161.79732, 1.27938 ± 3.7″)
UVOT No position available.
Galactic NHI:3.62×1020 cm-2
Galactic E(B-V):0.046 mag
Best RA:10h 47m 11.36s= 161.79732 d
Best Dec:+01° 16′ 45.8″= 1.27938 d
Gal Lat:50.57
Gal Long:248.63
Sun angle:164.69°, 11.3 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 4 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

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
37.3161.78711.2777SDSS J104708.90+011639.5g=23.60, i=22.35, r=22.57, u=24.75, z=21.95Query vizier around this object
149.9161.76021.2605SDSS J104702.44+011537.8g=20.981, i=19.708, r=20.266, u=21.44, z=19.63Query vizier around this object
185.5161.76891.3224SDSS J104704.53+011920.5g=21.508, i=20.003, r=20.492, u=22.71, z=20.01Query vizier around this object
187.6161.84371.3031WiggleZ S11J104722499+01181104g=22.51, i=21.58, r=21.65, z=20.85Query vizier around this object
192.6161.85001.2700WB 1044+0132Query vizier around this object
192.9161.82891.2361Gaia DR3 3808169212976277760G=16.613323Query vizier around this object

There are 6 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
9.7161.79691.2820R=21.2, g=21.6, i=21.4, u=24.6, z=21.0SDSSQuery vizier around this object
9.7161.79671.2819Mag=21.5NEDQuery vizier around this object
20.9161.80121.2836NEDQuery vizier around this object
22.0161.79191.2821R=20.7, g=21.6, i=20.5, u=22.5, z=20.4SDSSQuery vizier around this object
22.0161.79171.2822Mag=21.5NEDQuery vizier around this object
28.6161.79331.2725NEDQuery vizier around this object
32.3161.78921.2833Mag=21.8NEDQuery vizier around this object
32.3161.78931.2835R=21.8, g=22.8, i=21.6, u=26.4, z=21.5SDSSQuery vizier around this object
35.9161.79211.2878NEDQuery vizier around this object
36.2161.80671.2758NEDQuery vizier around this object


There are 439 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
22.1161.79181.2822B2=21.6, R2=20.7USNO-B1Query vizier around this object
24.2161.80011.2733I=21.8, R=22.8, g=23.6, u=23.6, z=21.4SDSSQuery vizier around this object
37.3161.78711.2777I=22.2, R=22.4, g=23.4, u=24.5, z=21.7SDSSQuery vizier around this object
44.6161.80671.2713I=18.7, R1=19.9USNO-B1Query vizier around this object
47.1161.78451.2820I=24.1, R=24.8, g=25.1, u=22.4, z=22.6SDSSQuery vizier around this object
50.1161.78601.2875I=21.4, R=22.5, g=23.0, u=23.2, z=20.7SDSSQuery vizier around this object
61.1161.81411.2766I=19.4, R=19.6, g=20.2, u=22.1, z=19.4SDSSQuery vizier around this object
63.4161.79111.2959B1=20.0, B2=20.7, I=18.8, R2=19.7USNO-B1Query vizier around this object
66.7161.81541.2755I=21.7, R=24.1, g=24.8, u=23.7, z=21.9SDSSQuery vizier around this object
67.1161.81601.2796h=14.2, j=14.9, k=14.22MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 146 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.