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Swift Trigger: 741965

Presumed name: GRB 170311A

Back to trigger list.

BAT 18h 42m 15.12s, -30° 03′ 46.4″
position:(280.563, -30.0629 ± 180″)
XRT 18h 42m 21.43s, -30° 02′ 44.9″
position:(280.5893, -30.0458 ± 2.1″)
UVOT No position available.
Galactic NHI:8.57×100 cm-2
Galactic E(B-V):0.147 mag
Best RA:18h 42m 21.43s= 280.5893 d
Best Dec:-30° 02′ 44.9″= -30.0458 d
Gal Lat:-11.41
Gal Long:4.86
Sun angle:71.89°, 4.74 hr West

1Sper #4 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

No UVOT images are currently available.


SPER results page for this trigger.

Image of the SPER data

There are 9 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′′280.58930-30.04580GCN #20846GRB 170311A: Swift detection of a burstVizier logo
0.7′′280.58942-30.04597GCN #20850GRB 170311A: Enhanced Swift-XRT positionVizier logo
157.2′′280.53917-30.04086GCN #20855GRB 170311A: 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
19.0280.5949-30.0480OGLE BLG-RRLYR-36829I=17.518, V=18.327Query 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
6.6280.5904-30.0442B2=18.1, R1=18.2, R2=18.0USNO-B1Query vizier around this object
10.9280.5901-30.0429B2=18.4, R1=18.0, R2=18.1USNO-B1Query vizier around this object
11.3280.5929-30.0462B1=19.1, B2=18.6, R1=16.9, R2=17.0USNO-B1Query vizier around this object
14.0280.5851-30.0445B=20.0SSSQuery vizier around this object
14.1280.5848-30.0462B2=18.5, R1=17.6, R2=17.3USNO-B1Query vizier around this object
14.2280.5855-30.0436B2=18.2, R1=16.9, R2=16.9USNO-B1Query vizier around this object
14.9280.5858-30.0430B2=18.3, R1=17.7, R2=17.1USNO-B1Query vizier around this object
15.5280.5851-30.0480B2=18.9, R1=16.0USNO-B1Query vizier around this object
16.8280.5898-30.0412B=20.5SSSQuery vizier around this object
20.4280.5953-30.0435B2=19.1, R1=18.3, R2=18.4USNO-B1Query vizier around this object


There are 986 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
8.0280.5898-30.0436B2=18.6, R1=17.3, R2=18.3USNO-B1Query vizier around this object
8.3280.5870-30.0447B2=18.7, R1=16.8, R2=18.4USNO-B1Query vizier around this object
11.5280.5884-30.0489B2=17.9, R1=18.7USNO-B1Query vizier around this object
11.7280.5921-30.0480h=13.2, j=13.7, k=13.02MASSQuery vizier around this object
12.1280.5924-30.0478B1=16.1, I=14.2, R1=14.7, R2=14.0USNO-B1Query vizier around this object
12.4280.5873-30.0488B1=16.6, B2=16.3, I=14.8, R1=15.1, R2=15.3USNO-B1Query vizier around this object
13.5280.5870-30.0490h=14.9, j=15.2, k=14.62MASSQuery vizier around this object
13.8280.5856-30.0437h=15.4, j=15.8, k=15.32MASSQuery vizier around this object
14.7280.5848-30.0445B2=18.9, R1=18.2, R2=17.4USNO-B1Query vizier around this object
15.7280.5853-30.0485B1=17.7, B2=17.4, I=16.1, R1=16.2, R2=16.1USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 1232 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.