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Swift Trigger: 727610

Presumed name: GRB 161220A

Back to trigger list.

BAT 23h 23m 16.08s, -47° 30′ 07.2″
position:(350.817, -47.502 ± 180″)
XRT 23h 23m 23.49s, -47° 29′ 51.7″
position:(350.84788, -47.49769 ± 3.6″)
UVOT No position available.
Galactic NHI:1.16×100 cm-2
Galactic E(B-V):0.008 mag
Best RA:23h 23m 23.49s= 350.84788 d
Best Dec:-47° 29′ 51.7″= -47.49769 d
Gal Lat:-63.33
Gal Long:337.28
Sun angle:67.89°, -5.5 hr East of Sun

1Sper #9 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)

XRT SPER data

SPER results page for this trigger.

Image of the SPER data

There are 10 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
0.3′′350.84775-47.49772GCN #20302GRB 161220A: Swift detection of a burstVizier logo
0.4′′350.84790-47.49780GCN #20316GRB 161220A: Swift-XRT refined AnalysisVizier logo
65.8′′350.84100-47.48000GCN #20325GRB 161220A: 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).

SIMBAD

RA*Dec*SIMBAD name Query
34.1350.8619-47.49822MASS J23232685-4729534B=13.489, H=10.192, I=11.492, J=10.765, K=10.072, R=11.93, V=12.604, g=12.980, i=11.938, r=12.210Query vizier around this object
89.8350.8171-47.4839LEDA 500660Query vizier around this object
130.3350.8917-47.4769LEDA 500771Query vizier around this object

There are 3 SIMBAD objects within the position error. The full list is here.

* 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.

Galaxies

RA*Dec*Redshift CatalogueQuery
23.5350.8575-47.4986B2=19.3, I=18.5, R2=18.6USNO-B1Query vizier around this object
25.0350.8390-47.4942B=22.7SSSQuery vizier around this object
25.6350.8373-47.4977B2=20.2, I=18.1USNO-B1Query vizier around this object
33.4350.8617-47.4983NEDQuery vizier around this object
48.8350.8664-47.5030I=17.7, R1=19.2USNO-B1Query vizier around this object
57.5350.8329-47.4853Mag=18.6NEDQuery vizier around this object
60.5350.8245-47.4919I=17.9, R1=19.7USNO-B1Query vizier around this object
63.4350.8446-47.5153Mag=18.1NEDQuery vizier around this object
63.5350.8446-47.5152B=19.2, R2=18.1, i=17.7SSSQuery vizier around this object
64.7350.8740-47.5012B2=20.3, I=18.3, R1=19.2, R2=18.6USNO-B1Query vizier around this object

Queried APM-N, SDSS, PSCz, SSS, NED, 2MASSX, USNO-B1.

There are 69 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

Stars

RA*Dec* CatalogueQuery
14.0350.8435-47.5002B2=20.2, R1=19.5USNO-B1Query vizier around this object
14.5350.8535-47.4990B2=20.4, R1=19.5USNO-B1Query vizier around this object
18.0350.8553-47.4980B2=19.7, R2=20.4USNO-B1Query vizier around this object
23.6350.8576-47.4981I=18.1, R2=19.1USNO-B1Query vizier around this object
24.5350.8378-47.4979h=16.0, j=16.7, k=15.72MASSQuery vizier around this object
26.2350.8371-47.4982B2=19.7, I=18.3, R1=11.1, R2=19.6USNO-B1Query vizier around this object
34.1350.8619-47.4982h=10.2, j=10.8, k=10.12MASSQuery vizier around this object
34.2350.8619-47.4982B2=13.5, I=11.5, R1=12.9, R2=11.9USNO-B1Query vizier around this object
36.1350.8619-47.5009I=18.3, R2=19.2USNO-B1Query vizier around this object
36.2350.8570-47.5056I=18.3, R1=18.6USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 80 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.