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Swift Trigger: 676423

Presumed name: GRB 160227A

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BAT 12h 59m 09.12s, +78° 38′ 20.4″
position:(194.788, +78.639 ± 180″)
XRT 12h 59m 13.54s, +78° 40′ 45.8″
position:(194.8064, 78.6794 ± 2.0″)
UVOT 12h 59m 13.82s, +78° 40′ 44.8″
position:(194.8076, +78.6791 ± 0.8″)
Galactic NHI:3.49×100 cm-2
Galactic E(B-V):0.053 mag
Best RA:12h 59m 13.82s= 194.8076 d
Best Dec:+78° 40′ 44.8″= +78.6791 d
Gal Lat:38.44
Gal Long:122.44
Sun angle:107.67°, 9.7 hr West

1Sper #3 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 11 SPER messages, and 2 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′′194.8076778.67914GCN #19098GRB 160227A: Swift detection of a burst with an optical counterpartVizier logo
0.3′′194.8075078.67919GCN #19122GRB 160227A: Swift/UVOT DetectionVizier logo
0.4′′194.8072178.67917GCN #19104GRB 160227A: Enhanced Swift-XRT positionVizier logo
0.4′′194.8070878.67914GCN #19100GRB 160227A: Mt. Terskol observatory optical observationVizier logo
1.1′′194.8088878.67894GCN #19116GRB 160227A: MASTER prompt OT Detection and LC Vizier logo
17.2′′194.7833378.67894GCN #19099GRB 160227A: MASTER OT Detection Vizier logo
56.8′′194.7487778.68984GCN #19124GRB 160227A: McDonald 0.8m DetectionVizier logo
56.8′′194.7487778.68984GCN #19125GRB 160227A: LOAO 1.0m optical detectionVizier logo
161.8′′195.0337578.67219GCN #19106GRB 160227A� Swift-BAT refined analysisVizier logo

There are 14 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

* 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
11.0194.793278.6810B1=20.7, B2=20.5USNO-B1Query vizier around this object
13.3194.793378.6817NEDQuery vizier around this object
13.9194.790078.6775NEDQuery vizier around this object
19.0194.795678.6746B=21.8, R=19.7APM-NQuery vizier around this object
35.9194.773578.6718B=21.8, R=19.7APM-NQuery vizier around this object
57.2194.748378.6900NEDQuery vizier around this object
70.2194.884278.6673B=21.8, R=19.8APM-NQuery vizier around this object
70.7194.902978.6853NEDQuery vizier around this object
75.3194.884878.6936B=21.8, R=20.0APM-NQuery vizier around this object
80.2194.877278.6968B=21.7, R=20.0APM-NQuery vizier around this object


There are 125 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
6.4194.810278.6810B1=21.0, R1=19.1USNO-B1Query vizier around this object
10.7194.794278.6812B1=20.9, B2=20.8, R2=20.7USNO-B1Query vizier around this object
14.1194.789678.6773h=15.1, j=15.6, k=15.22MASSQuery vizier around this object
14.2194.789578.6773B1=17.1, B2=17.0, I=16.1, R1=15.9, R2=16.1USNO-B1Query vizier around this object
55.5194.748778.6899h=14.5, j=14.8, k=14.42MASSQuery vizier around this object
55.6194.748778.6899B1=16.5, B2=16.5, I=15.3, R1=15.5, R2=15.8USNO-B1Query vizier around this object
64.6194.834278.6623B2=21.0, R1=20.0USNO-B1Query vizier around this object
79.5194.730878.6630R1=19.7, R2=20.2USNO-B1Query vizier around this object
85.0194.686578.6775R1=19.6, R2=20.3USNO-B1Query vizier around this object
87.4194.683478.6770B1=19.2, B2=18.4, I=18.0, R1=18.1, R2=18.3USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 88 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.