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Swift Trigger: 638808

Presumed name: GRB 150423A

Back to trigger list.

BAT 14h 46m 24.00s, +12° 17′ 16.8″
position:(221.600, +12.288 ± 180″)
XRT 14h 46m 18.98s, +12° 17′ 01.3″
position:(221.5791, 12.2837 ± 2.1″)
UVOT No position available.
Galactic NHI:1.63×100 cm-2
Galactic E(B-V):0.026 mag
Best RA:14h 46m 18.98s= 221.5791 d
Best Dec:+12° 17′ 01.3″= 12.2837 d
Gal Lat:59.28
Gal Long:9.72
Sun angle:152.95°, 11.3 hr West

1Sper #6 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

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 6 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
0.8′′221.5790012.28350GCN #17735GRB 150423A: Enhanced Swift-XRT positionVizier logo
1.8′′221.5787512.28333GCN #17728GRB 150423A: Swift detection of a short burstVizier logo
3.1′′221.5789212.28456GCN #17750GRB 150423A: TSHAO optical observationsVizier logo
104.1′′221.6008312.26406GCN #17740GRB 150423A: 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
15.2221.583312.2847B=20.1, R=19.6APM-NQuery vizier around this object
15.7221.583312.28501.845000Mag=20.6NEDQuery vizier around this object
19.4221.574212.2813R=21.6, g=21.9, i=21.3, u=22.3, z=20.4SDSSQuery vizier around this object
19.4221.574212.2814Mag=22.2NEDQuery vizier around this object
24.8221.572512.2867Mag=23.1NEDQuery vizier around this object
27.1221.575412.2903Mag=20.2NEDQuery vizier around this object
29.3221.571712.2800Mag=23.6NEDQuery vizier around this object
30.3221.572112.2883Mag=21.0NEDQuery vizier around this object
30.3221.572012.2885R=20.7, g=21.1, i=20.4, u=21.9, z=20.2SDSSQuery vizier around this object
31.1221.585412.2894Mag=22.1NEDQuery vizier around this object


There are 524 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
15.3221.583312.2849B1=20.2, B2=20.5, R1=19.6, R2=19.3USNO-B1Query vizier around this object
15.7221.583412.2850I=20.3, R=20.5, g=20.5, u=20.6, z=20.3SDSSQuery vizier around this object
24.8221.572812.2867I=21.8, R=22.2, g=23.2, u=24.6, z=22.2SDSSQuery vizier around this object
27.1221.575412.2903I=17.5, R=18.7, g=20.2, u=23.8, z=16.8SDSSQuery vizier around this object
27.2221.575312.2903h=14.8, j=15.5, k=14.52MASSQuery vizier around this object
27.4221.575312.2903B1=20.9, B2=20.5, I=16.8, R1=18.7, R2=18.3USNO-B1Query vizier around this object
29.3221.571712.2800I=23.0, R=22.4, g=23.5, u=24.3, z=21.8SDSSQuery vizier around this object
30.0221.572012.2883B1=21.2, B2=21.1, R1=20.0, R2=19.9USNO-B1Query vizier around this object
31.1221.585612.2896I=19.3, R=20.7, g=22.1, u=24.9, z=18.6SDSSQuery vizier around this object
47.8221.588112.2738I=20.1, R=21.1, g=22.6, u=23.7, z=19.8SDSSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 209 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.