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Swift Trigger: 1426088

Presumed name: GRB 251221A

Back to trigger list.

BAT 06h 45m 37.92s, +00° 43′ 44.4″
position:(101.408, +0.729 ± 180″)
XRT 06h 45m 42.66s, +00° 43′ 56.1″
position:(101.42776, 0.73226 ± 1.9″)
UVOT No position available.
Galactic NHI:5.90×1021 cm-2
Galactic E(B-V):1.319 mag
Best RA:06h 45m 42.66s= 101.42776 d
Best Dec:+00° 43′ 56.1″= 0.73226 d
Gal Lat:-0.94
Gal Long:211.63
Sun angle:154.37°, 11.2 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.

XRT SPER data

SPER results page for this trigger.

Image of the SPER data

There are 10 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).

SIMBAD

RA*Dec*SIMBAD name Query
104.3101.39880.7308UCAC4 454-022115B=14.29, G=13.799538, H=12.83, J=12.963, K=12.792, R=14.04, V=13.95, g=14.04, i=13.87, r=13.87Query vizier around this object
115.4101.43100.7642CoRoT 102792200B=13.554, G=12.888713, H=11.634, J=11.938, K=11.568, R=12.944, V=13.091, g=13.239, i=12.733, r=12.898Query vizier around this object
127.2101.40380.7583CoRoT 102787512G=14.577135, H=13.205, J=13.377, K=13.14Query vizier around this object
134.0101.40530.7026CoRoT 102787764B=15.008, G=14.126582, H=12.625, J=12.864, K=12.502, R=14.272, V=14.320, g=14.609, i=13.911, r=14.126Query vizier around this object
146.1101.40830.6966CoRoT 102788281B=15.285, G=14.253340, H=12.526, J=12.841, K=12.415, R=14.338, V=14.531, g=14.883, i=13.964, r=14.287Query vizier around this object
146.6101.45100.6988CoRoT 102795315B=14.141, G=13.502106, H=12.326, J=12.571, K=12.299, R=13.531, V=13.667, g=13.830, i=13.408, r=13.535Query vizier around this object
146.7101.38700.73304C 00.25Query vizier around this object
185.8101.47940.7334UCAC4 454-022206B=14.77, G=14.254135, H=13.327, J=13.454, K=13.26, R=14.25, V=14.37, g=14.49, i=14.24, r=14.30Query vizier around this object
194.1101.46150.7743Gaia DR3 3125565731297020288G=19.590197Query vizier around this object
195.9101.39340.6901ZTF J064534.40+004124.4G=18.224920, g=19.161, r=18.196Query vizier around this object

There are 10 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.

Galaxies

RA*Dec*Redshift CatalogueQuery
26.2101.43160.7384B2=20.3, I=18.1, R2=18.3USNO-B1Query vizier around this object
32.5101.41910.7298B2=20.2, R2=18.7USNO-B1Query vizier around this object
38.1101.43490.7400B=20.1, R2=19.0, i=18.4SSSQuery vizier around this object
41.1101.43410.7418B=21.8, R2=20.7SSSQuery vizier around this object
43.9101.43910.7369I=17.9, R2=19.7USNO-B1Query vizier around this object
53.9101.41360.7275B=19.0, R2=18.0, i=17.5SSSQuery vizier around this object
61.1101.44040.7436B=18.0, i=15.7SSSQuery vizier around this object
65.5101.40960.7317R1=18.7, R2=18.5USNO-B1Query vizier around this object
66.0101.41600.7182B2=19.8, R2=19.7USNO-B1Query vizier around this object
66.2101.41440.7197B=20.5, R2=18.8, i=17.4SSSQuery vizier around this object

Queried APM-N, SDSS, PSCz, SSS, NED, 2MASSX, USNO-B1.

There are 107 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

Stars

RA*Dec* CatalogueQuery
9.8101.43050.7322B1=20.8, B2=20.5, R2=19.4USNO-B1Query vizier around this object
24.9101.43270.7371h=14.4, j=15.1, k=14.22MASSQuery vizier around this object
25.2101.43270.7372B1=19.1, B2=17.9, I=16.3, R1=16.8, R2=16.5USNO-B1Query vizier around this object
30.3101.43320.7258B2=21.2, R1=18.7, R2=19.4USNO-B1Query vizier around this object
32.6101.42140.7387h=15.2, j=15.8, k=15.12MASSQuery vizier around this object
32.6101.42130.7387B1=20.4, B2=19.1, I=17.2, R1=17.9, R2=17.4USNO-B1Query vizier around this object
37.4101.41780.7292h=14.9, j=15.4, k=14.82MASSQuery vizier around this object
37.5101.41780.7292B1=19.7, B2=18.7, I=17.0, R1=17.6, R2=17.3USNO-B1Query vizier around this object
37.6101.43480.7400B1=20.3, B2=20.1, I=18.3, R1=18.8, R2=18.6USNO-B1Query vizier around this object
39.7101.42220.7227h=15.0, j=15.6, k=15.02MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 440 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.