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Swift Trigger: 1340954

Presumed name: GRB 250809A

Back to trigger list.

BAT 15h 32m 03.60s, -53° 17′ 20.4″
position:(233.015, -53.289 ± 180″)
XRT 15h 32m 00.10s, -53° 17′ 46.9″
position:(233.00043, -53.29636 ± 3.0″)
UVOT No position available.
Galactic NHI:6.59×1021 cm-2
Galactic E(B-V):2.102 mag
Best RA:15h 32m 00.10s= 233.00043 d
Best Dec:-53° 17′ 46.9″= -53.29636 d
Gal Lat:2.35
Gal Long:325.61
Sun angle:104.67°, -6.2 hr East of Sun

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 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

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
67.8233.0316-53.2935Gaia DR3 5888615495299836928G=16.351748Query vizier around this object
100.6232.9578-53.28492MASS J15314987-5317057G=17.041885, H=12.239, J=13.209, K=11.838Query vizier around this object
113.3233.0074-53.26522MASS J15320178-5315545G=16.332314, H=9.838, J=11.172, K=9.277Query vizier around this object
117.1233.0124-53.3281TYC 8695-2298-1B=11.98, G=11.618663, H=10.374, J=10.613, K=10.271, V=11.85Query vizier around this object
118.6233.0452-53.2771Gaia DR3 5888615602736057984G=17.098333Query vizier around this object
123.9232.9980-53.33082MASS J15315953-5319505G=18.118044, H=12.918, J=13.909, K=12.554Query vizier around this object
126.2232.9440-53.3060Gaia DR3 5888615980634722944G=18.553474Query vizier around this object
133.8232.9838-53.33222MASS J15315613-5319558G=16.214155, H=9.863, J=11.118Query vizier around this object
153.7233.0393-53.33222MASS J15320944-5319557G=16.402267, H=9.648, J=11.017, K=8.978Query vizier around this object
154.2232.9580-53.33092MASS J15314992-5319511G=16.257431, H=8.929, J=10.265, K=8.238Query vizier around this object

There are 16 SIMBAD objects within the position error. The full list is here.

* RA/Dec in equinox J2000

X-ray sources

RA*Dec* Source table2Observatory Query
127.5233.0062-53.33160.0320594572 +/- 0.01620720327SRG-EROSITQuery vizier around this object
177.0232.9190-53.28920.0383838937 +/- 0.01755029708SRG-EROSITQuery vizier around this object

Queried the X-ray MASTER catalogue.

* RA/Dec in equinox J2000

1Energy band for count-rate is mission specific.

Galaxies

RA*Dec*Redshift CatalogueQuery
2.7232.9992-53.2964NEDQuery vizier around this object
3.3233.0012-53.2972NEDQuery vizier around this object
5.8232.9992-53.2949I=15.0, R1=16.2USNO-B1Query vizier around this object
6.7232.9992-53.2947NEDQuery vizier around this object
9.3232.9963-53.2972NEDQuery vizier around this object
9.8232.9963-53.2972NEDQuery vizier around this object
12.0232.9950-53.2953NEDQuery vizier around this object
12.6232.9963-53.2989NEDQuery vizier around this object
13.0233.0000-53.2928I=18.4, R2=17.7USNO-B1Query vizier around this object
14.5233.0071-53.2956B2=18.8, I=14.2, R2=16.4USNO-B1Query vizier around this object

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

There are 1503 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
1.8233.0004-53.2969I=15.5, R1=16.8, R2=16.6USNO-B1Query vizier around this object
2.7232.9992-53.2964h=12.2, j=13.1, k=11.92MASSQuery vizier around this object
3.3232.9991-53.2968B2=16.8, R1=15.4USNO-B1Query vizier around this object
3.3233.0012-53.2972h=14.4, j=15.1, k=14.32MASSQuery vizier around this object
4.6232.9990-53.2954B2=18.1, I=15.9, R1=16.1, R2=15.8USNO-B1Query vizier around this object
6.7232.9992-53.2947h=13.8, j=14.5, k=13.52MASSQuery vizier around this object
7.3232.9971-53.2968B2=12.9, I=10.7, R1=11.4, R2=11.8USNO-B1Query vizier around this object
9.6232.9964-53.2975I=11.1, R1=11.5, R2=11.7USNO-B1Query vizier around this object
9.8232.9961-53.2973h=11.1, j=11.5, k=10.92MASSQuery vizier around this object
12.0232.9952-53.2953h=15.3, j=15.6, k=14.72MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 1644 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.