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Swift Trigger: 997453

Presumed name: GRB 200925B

Back to trigger list.

BAT 16h 27m 24.24s, +78° 23′ 38.4″
position:(246.851, +78.394 ± 180″)
XRT 16h 27m 08.86s, +78° 23′ 25.4″
position:(246.7869, 78.3904 ± 2.0″)
UVOT No position available.
Galactic NHI:4.02×100 cm-2
Galactic E(B-V):0.040 mag
Best RA:16h 27m 08.86s= 246.7869 d
Best Dec:+78° 23′ 25.4″= 78.3904 d
Gal Lat:33.51
Gal Long:111.68
Sun angle:86.13°, -4.2 hr East of Sun

1Sper #9 auto processing.

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 11 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
0.1′′246.7868078.39040GCN #28500GRB 200925B: Prompt enhanced Swift-XRT positionVizier logo
1.2′′246.7854278.39025GCN #28501GRB 200925A: OSN Afterglow Candidate DiscoveryVizier logo
1.3′′246.7852278.39052GCN #28503GRB 200925B: Enhanced Swift-XRT positionVizier logo
2.2′′246.7899078.39033GCN #28499GRB 200925B: Swift detection of a burstVizier logo
48.2′′246.8510078.39400GCN #28502Swift GRB 200925B: Global MASTER-Net OT detectionVizier logo
48.2′′246.8510078.39400GCN #28498Swift GRB200925.91: Global MASTER-Net observations report Vizier logo
76.6′′246.8920878.39264GCN #28506GRB 200925B: Swift-BAT refined analysisVizier logo

There are 13 matches in total. See the full table for details.

Catalogue Searches. Searched 3.33′ 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
54.8246.831878.4027Pul -3 1320065B=15.8, G=15.0037, H=13.766, J=14.064, K=13.766, R=15.1Query vizier around this object
68.8246.765678.3718RX J162703.7+782218Query vizier around this object
78.8246.713978.4066Pul -3 1320057B=15.8, G=15.0264, H=13.725, J=14.035, K=13.691, R=15.0Query vizier around this object
160.0246.630678.3590Pul -3 1320055B=15.9, G=15.5413, H=14.150, R=15.4Query vizier around this object

There are 4 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
6.3246.795578.3907B=16.5, R=14.8APM-NQuery vizier around this object
6.4246.795478.3906NEDQuery vizier around this object
28.6246.792978.3983NEDQuery vizier around this object
29.8246.754678.3853NEDQuery vizier around this object
41.6246.786278.4019NEDQuery vizier around this object
41.8246.800878.3792NEDQuery vizier around this object
43.1246.766778.3792NEDQuery vizier around this object
44.7246.725378.3895B=21.9, R=20.0APM-NQuery vizier around this object
46.1246.824278.4008NEDQuery vizier around this object
50.5246.846778.3833NEDQuery vizier around this object


There are 230 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
6.1246.795178.3900I=14.7, R1=19.1USNO-B1Query vizier around this object
6.2246.795478.3907B1=16.6, B2=17.3, I=14.6, R1=15.1, R2=15.6USNO-B1Query vizier around this object
6.4246.795678.3906h=14.3, j=14.8, k=14.22MASSQuery vizier around this object
54.8246.831878.4026h=13.8, j=14.1, k=13.82MASSQuery vizier around this object
55.1246.831878.4028B1=15.4, B2=16.0, I=13.8, R1=14.4, R2=14.6USNO-B1Query vizier around this object
55.4246.781878.3750B2=20.2, R2=20.0USNO-B1Query vizier around this object
64.9246.808278.3729B1=20.3, B2=20.8, I=17.1, R1=18.1, R2=18.2USNO-B1Query vizier around this object
65.1246.808378.3728h=15.0, j=15.8, k=14.92MASSQuery vizier around this object
65.4246.876878.3890B1=19.6, B2=19.8, I=15.4, R1=17.0, R2=17.2USNO-B1Query vizier around this object
65.5246.876878.3885B1=19.9, R2=17.2USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 84 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.