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Swift Trigger: 661869

Presumed name: GRB 151027B

Back to trigger list.

BAT 05h 04m 57.12s, -06° 25′ 37.2″
position:(76.238, -6.427 ± 180″)
XRT 05h 04m 52.67s, -06° 27′ 00.4″
position:(76.21944, -6.45010 ± 3.9″)
UVOT No position available.
Galactic NHI:5.81×100 cm-2
Galactic E(B-V):0.173 mag
Best RA:05h 04m 52.67s= 76.21944 d
Best Dec:-06° 27′ 00.4″= -6.45010 d
Gal Lat:-26.6
Gal Long:206.31
Sun angle:131.76°, 9.0 hr West

1Sper #1 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

Blink images with DSS (link via GSFC)


SPER results page for this trigger.

Image of the SPER data

There are 1 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′′76.21946-6.45011GCN #18499GRB 151027B: Swift detection of its 1000-th burstVizier logo
0.2′′76.21941-6.45016GCN #18504GRB 151027B: Enhanced Swift-XRT positionVizier logo
0.6′′76.21954-6.45022GCN #18501GRB 151027B: NOT optical afterglow candidateVizier logo
0.6′′76.21954-6.45022GCN #18512GRB 151027B: RATIR ObservationsVizier logo
137.8′′76.18800-6.42800GCN #18514GRB 151027B: 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
13.676.2219-6.4530B=22.2, R2=21.2SSSQuery vizier around this object
24.076.2215-6.4565B=22.1SSSQuery vizier around this object
43.776.2314-6.4528B=21.8SSSQuery vizier around this object
44.176.2217-6.4621B=22.2, R2=20.7SSSQuery vizier around this object
57.176.2048-6.4564B=18.4, R2=17.4, i=16.5SSSQuery vizier around this object
57.276.2043-6.4552B=18.1, R2=17.1, i=15.5SSSQuery vizier around this object
58.476.2220-6.4661B=22.4SSSQuery vizier around this object
60.576.2315-6.4619B=20.8, R2=20.4SSSQuery vizier around this object
62.176.2363-6.4541B=22.4SSSQuery vizier around this object
63.676.2343-6.4598B=21.9SSSQuery vizier around this object


There are 182 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
56.476.2060-6.4419h=15.0, j=15.6, k=14.72MASSQuery vizier around this object
56.776.2059-6.4419B1=19.6, B2=18.9, I=16.9, R1=17.8, R2=17.7USNO-B1Query vizier around this object
57.076.2049-6.4566h=15.5, j=15.9, k=15.32MASSQuery vizier around this object
57.276.2047-6.4562B1=16.7, I=15.2, R1=15.6USNO-B1Query vizier around this object
57.376.2043-6.4552B1=16.2, B2=15.9, I=14.9, R1=15.1, R2=15.1USNO-B1Query vizier around this object
57.376.2042-6.4550h=14.6, j=14.9, k=14.52MASSQuery vizier around this object
59.476.2044-6.4431h=14.2, j=14.9, k=14.12MASSQuery vizier around this object
59.576.2044-6.4431B1=18.0, B2=18.0, I=15.8, R1=16.6, R2=16.4USNO-B1Query vizier around this object
61.076.2293-6.4363B1=16.1, B2=16.1, I=14.8, R1=15.2, R2=15.4USNO-B1Query vizier around this object
61.276.2294-6.4363h=14.0, j=14.4, k=13.82MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 148 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.