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Swift Trigger: 653978

Presumed name: GRB 150831B

Back to trigger list.

BAT 18h 04m 05.04s, -27° 15′ 07.2″
position:(271.021, -27.252 ± 180″)
XRT 18h 04m 09.45s, -27° 15′ 33.6″
position:(271.03936, -27.25933 ± 3.9″)
UVOT No position available.
Galactic NHI:3.69×100 cm-2
Galactic E(B-V):1.347 mag
Best RA:18h 04m 09.45s= 271.03936 d
Best Dec:-27° 15′ 33.6″= -27.25933 d
Gal Lat:-2.68
Gal Long:3.51
Sun angle:112.88°, -7.4 hr East of Sun

1Sper #2 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.


XRT SPER data

SPER results page for this trigger.

Image of the SPER data

There are 6 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′′271.03936-27.25933GCN #18217GRB 150831B: Swift-XRT observationsVizier logo
1.3′′271.03954-27.25900GCN #18222GRB 150831B: Swift-XRT refined AnalysisVizier logo
64.4′′271.02100-27.25200GCN #18215GRB 150831B: Swift detection of a probable burstVizier logo
66.0′′271.03000-27.24300GCN #18223GRB 150831B: 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
44.6271.0262-27.2554OGLE BLG-RRLYR-12351I=15.768, V=17.067Query vizier around this object
133.1271.0656-27.2306IRAS 18011-2714Query vizier around this object
144.9271.0820-27.2458OGLE BLG-RRLYR-12425I=15.931, V=17.442Query vizier around this object
152.7271.0393-27.2169TYC 6850-1186-1B=12.18, H=11.313, J=11.38, K=11.312, V=12.20Query vizier around this object
159.7270.9895-27.2583CPD-27 6051B=11.14, H=10.687, J=10.692, K=10.722, V=10.99Query vizier around this object
195.2271.0880-27.2920PSR J1804-27Query vizier around this object

There are 6 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
3.6271.0383-27.2597B2=10.8, R2=8.9USNO-B1Query vizier around this object
4.4271.0399-27.2582I=16.7, R1=18.4USNO-B1Query vizier around this object
4.8271.0379-27.2595B1=15.0, B2=15.5, I=15.8, R2=10.5USNO-B1Query vizier around this object
5.3271.0393-27.2579B2=16.6, R1=17.5USNO-B1Query vizier around this object
5.4271.0377-27.2597B=19.1, R2=17.4, i=16.1SSSQuery vizier around this object
5.9271.0376-27.2597B2=15.1, I=15.3, R1=14.7USNO-B1Query vizier around this object
10.1271.0362-27.2594B2=14.0, I=10.2, R1=13.4, R2=9.0USNO-B1Query vizier around this object
11.2271.0367-27.2573I=16.3, R2=11.1USNO-B1Query vizier around this object
12.0271.0370-27.2567I=16.3, R2=10.9USNO-B1Query vizier around this object
13.0271.0361-27.2615I=16.8, R1=18.0USNO-B1Query vizier around this object

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

There are 1375 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
5.3271.0378-27.2598h=12.7, j=13.0, k=12.72MASSQuery vizier around this object
8.9271.0393-27.2618h=11.8, j=12.7, k=11.62MASSQuery vizier around this object
10.5271.0366-27.2578h=12.5, j=13.3, k=12.32MASSQuery vizier around this object
11.2271.0387-27.2624I=13.3, R2=11.4USNO-B1Query vizier around this object
11.5271.0426-27.2607h=9.1, j=10.1, k=8.62MASSQuery vizier around this object
11.9271.0422-27.2614B2=11.4, I=16.1USNO-B1Query vizier around this object
12.0271.0357-27.2599h=12.8, j=13.5, k=10.82MASSQuery vizier around this object
12.1271.0378-27.2563h=12.7, j=13.3, k=12.52MASSQuery vizier around this object
12.5271.0431-27.2602R1=14.9, R2=12.2USNO-B1Query vizier around this object
13.2271.0361-27.2616h=13.3, j=14.1, k=13.32MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 2209 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.