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Swift Trigger: 554620

Presumed name: GRB 130427A

Back to trigger list.

BAT 11h 32m 33.36s, +27° 41′ 31.2″
position:(173.139, +27.692 ± 180″)
XRT 11h 32m 32.69s, +27° 42′ 46.4″
position:(173.1362, 27.7129 ± 4.7″)
UVOT No position available.
Galactic NHI:1.79×1020 cm-2
Galactic E(B-V):NED unavailable
Best RA:11h 32m 32.69s= 173.1362 d
Best Dec:+27° 42′ 46.4″= 27.7129 d
Gal Lat:72.5
Gal Long:206.46
Sun angle:122.14°, -9.2 hr East of Sun

1Sper #0 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 white image

white image

UVOT white image

white image

Blink images with DSS (link via GSFC)


SPER results page for this trigger.

No SPER data received yet. Refresh this page to check again.

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)RA DecDate reportedSource MiscQuery
0.0′′173.1362027.71290GCN #14448GRB 130427A: Swift detection of a very bright burst with a likely bright optical counterpartVizier logo
30.4′′173.1301227.70639GCN #14475GRB 130427A: T100 observationsVizier logo
40.1′′173.1480027.70900GCN #14508GRB 130427A: Fermi-LAT refined analysisVizier logo
50.0′′173.1370827.69903ATEL #5042 An untriggered optical detection of GRB 130427A Vizier logo
50.1′′173.1367927.69900GCN #14457GRB 130427A: iTelescope T11 optical observationsVizier logo
50.3′′173.1368327.69894GCN #14450GRB 130427A: early optical observationsVizier logo
50.4′′173.1367527.69891GCN #14494GRB 130427A: CARMA 3mm observationsVizier logo
50.4′′173.1367027.69889ATEL #5242 e-EVN detections of GRB130427A and GRB130702A Vizier logo
50.5′′173.1367127.69889GCN #14519GRB 130427A: GMRT radio detectionVizier logo
50.5′′173.1500027.70600GCN #14470GRB 130427A: Swift-BAT refined analysisVizier logo
54.7′′173.1359627.69769GCN #14485GRB 130427A: Swift-XRT refined AnalysisVizier logo

There are 16 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
170.7173.140027.6656[VV2010] J113233.6+273956B=19.79, V=19.55, g=19.316, i=18.958, r=19.177, u=19.812, z=18.828Query vizier around this object
181.6173.083727.6933US 2568B=17.3Query vizier around this object

* 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
20.3173.140427.7086R=22.6, g=22.7, i=22.7, u=23.4, z=21.0SDSSQuery vizier around this object
20.3173.140427.7086Mag=22.6NEDQuery vizier around this object
22.6173.141527.7170R=25.4, g=25.4, i=23.9, u=25.4, z=20.6SDSSQuery vizier around this object
29.3173.138327.7208Mag=23.1NEDQuery vizier around this object
29.3173.138627.7208R=21.8, g=23.0, i=20.9, u=24.1, z=20.8SDSSQuery vizier around this object
29.7173.130427.7064Mag=19.6NEDQuery vizier around this object
31.3173.137427.7215B1=20.7, B2=22.0USNO-B1Query vizier around this object
34.3173.145027.7181Mag=21.5NEDQuery vizier around this object
34.9173.142927.7206R=22.2, g=22.0, i=21.6, u=21.5, z=19.8SDSSQuery vizier around this object
38.2173.147527.7164Mag=25.4NEDQuery vizier around this object


There are 342 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
25.7173.132627.7065I=24.1, R=24.2, g=25.1, u=25.0, z=20.8SDSSQuery vizier around this object
29.5173.130627.7064B1=20.0, B2=20.0, I=18.5, R1=18.5, R2=18.9USNO-B1Query vizier around this object
29.7173.130627.7063I=18.9, R=19.1, g=19.6, u=20.9, z=19.3SDSSQuery vizier around this object
33.8173.145227.7178B1=20.7, B2=21.4, R1=19.8USNO-B1Query vizier around this object
34.2173.145227.7181I=21.3, R=21.3, g=21.5, u=22.3, z=21.5SDSSQuery vizier around this object
38.2173.147627.7163I=22.9, R=22.6, g=25.6, u=23.7, z=23.5SDSSQuery vizier around this object
43.8173.138627.7009B2=21.7, R1=19.9, R2=20.0USNO-B1Query vizier around this object
44.1173.145227.7036B2=22.0, I=18.3USNO-B1Query vizier around this object
44.2173.122427.7122B1=21.0, B2=20.7, R2=20.2USNO-B1Query vizier around this object
44.9173.145827.7038B2=22.0, I=18.3USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 149 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.