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Swift Trigger: 655721

Presumed name: GRB 150915A

Back to trigger list.

BAT 21h 18m 55.44s, -34° 51′ 14.4″
position:(319.731, -34.854 ± 180″)
XRT 21h 18m 38.10s, -34° 54′ 47.0″
position:(319.65874, -34.91306 ± 3.6″)
UVOT No position available.
Galactic NHI:6.40×100 cm-2
Galactic E(B-V):0.096 mag
Best RA:21h 18m 38.10s= 319.65874 d
Best Dec:-34° 54′ 47.0″= -34.91306 d
Gal Lat:-44.28
Gal Long:9.44
Sun angle:135.56°, -9.8 hr East of Sun

1Sper #2 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

UVOT u image

u image

UVOT white image

white image

Blink images with DSS (link via GSFC)


SPER results page for this trigger.

Image of the SPER data

There are 3 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
0.0′′319.65874-34.91306GCN #18315GRB 150915A: Swift detection of a burstVizier logo
2.2′′319.65840-34.91360GCN #18329GRB 150915A: Swift-XRT refined AnalysisVizier logo
3.4′′319.65767-34.91342GCN #18317GRB 150915A: GROND detection of an optical counterpart candidateVizier logo
74.5′′319.64483-34.89581GCN #18323GRB 150915A: NOT observations of a brightening afterglowVizier logo
148.6′′319.67500-34.87400GCN #18328GRB 150915A� Swift-BAT refined analysisVizier logo

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

* 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
7.2319.6611-34.9136B=21.9SSSQuery vizier around this object
27.7319.6679-34.9148B=21.1, R2=19.3, i=18.7SSSQuery vizier around this object
48.1319.6425-34.9118B=18.5, R2=17.6, i=17.3SSSQuery vizier around this object
49.0319.6421-34.9117Mag=17.6NEDQuery vizier around this object
50.0319.6751-34.9095B2=20.0, I=17.6, R1=18.0, R2=18.4USNO-B1Query vizier around this object
52.4319.6435-34.9055B=21.7, R2=20.0, i=17.9SSSQuery vizier around this object
53.1319.6433-34.9054I=17.9, R1=19.6, R2=20.4USNO-B1Query vizier around this object
69.4319.6568-34.9323B2=20.5, I=18.6, R1=19.6, R2=20.1USNO-B1Query vizier around this object
76.6319.6742-34.8960B2=18.8, I=18.0, R1=18.6, R2=18.6USNO-B1Query vizier around this object
77.2319.6814-34.9237B=21.0, R2=18.7, i=17.8SSSQuery vizier around this object


There are 62 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
9.0319.6604-34.9109B2=20.3, R1=19.4, R2=20.2USNO-B1Query vizier around this object
27.7319.6679-34.9147B2=20.2, I=18.5, R1=19.2, R2=19.5USNO-B1Query vizier around this object
32.1319.6613-34.9044B2=20.4, R2=21.2USNO-B1Query vizier around this object
33.9319.6502-34.9067B2=20.4, R2=21.2USNO-B1Query vizier around this object
42.2319.6703-34.9200I=18.6, R1=19.6, R2=20.4USNO-B1Query vizier around this object
48.1319.6750-34.9123B2=20.4, R1=19.3, R2=19.8USNO-B1Query vizier around this object
48.4319.6424-34.9117B2=16.0, I=17.0, R1=16.3, R2=16.5USNO-B1Query vizier around this object
49.0319.6450-34.9054I=18.6, R1=19.2USNO-B1Query vizier around this object
50.3319.6752-34.9096h=15.3, j=16.1, k=15.12MASSQuery vizier around this object
52.4319.6435-34.9055h=16.1, j=16.7, k=15.52MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 118 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.