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Swift Trigger: 772052

Presumed name: GRB 170912B

Back to trigger list.

BAT 14h 21m 51.84s, -62° 01′ 48.0″
position:(215.466, -62.030 ± 180″)
XRT 14h 21m 50.08s, -61° 59′ 48.8″
position:(215.45867, -61.99689 ± 3.6″)
UVOT No position available.
Galactic NHI:1.58×100 cm-2
Galactic E(B-V):6.990 mag
Best RA:14h 21m 50.08s= 215.45867 d
Best Dec:-61° 59′ 48.8″= -61.99689 d
Gal Lat:-0.96
Gal Long:313.33
Sun angle:74.60°, -3.0 hr East of Sun

1Sper #8 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 8 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
0.7′′215.45854-61.99708GCN #21868GRB 170912B: Enhanced Swift-XRT positionVizier logo
1.0′′215.45921-61.99675GCN #21864GRB 170912B: Swift detection of a burstVizier logo
8.8′′215.46375-61.99744GCN #21879GRB 170912B: 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
84.6215.4898-61.9785TYC 9010-3956-1B=12.36, H=6.647, J=7.437, K=6.410, V=10.52Query vizier around this object
135.7215.5382-62.0019HD 125500B=9.90, H=3.144, J=4.144, K=2.828, V=8.30Query vizier around this object
142.6215.5044-61.9636IRAS 14182-6144Query vizier around this object
152.3215.5347-62.0196TYC 9010-3378-1B=12.60, H=10.426, J=10.586, K=10.336, V=11.60Query vizier around this object
159.6215.4550-61.9526SDC G313.341-0.921Query vizier around this object
184.5215.5494-62.0254TYC 9010-3770-1B=12.53, H=9.17, J=9.696, K=9.048, V=11.51Query vizier around this object
190.5215.3595-61.9718IRAS 14176-6144Query vizier around this object

There are 7 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.


RA*Dec*Redshift CatalogueQuery
12.1215.4654-61.9980B2=20.1, I=13.0USNO-B1Query vizier around this object
13.6215.4653-61.9948B2=19.4, I=14.2, R2=15.9USNO-B1Query vizier around this object
15.2215.4675-61.9976B2=19.2, I=17.0, R1=17.3USNO-B1Query vizier around this object
16.2215.4669-61.9946B2=18.0, I=15.2, R1=15.6, R2=15.7USNO-B1Query vizier around this object
16.6215.4537-61.9929B2=17.1, I=14.1, R1=14.6, R2=15.2USNO-B1Query vizier around this object
17.4215.4508-62.0000B2=19.0, R1=18.1USNO-B1Query vizier around this object
20.5215.4511-61.9924B2=18.2, I=15.2, R1=15.8USNO-B1Query vizier around this object
21.5215.4699-61.9941B2=16.8, R1=15.4USNO-B1Query vizier around this object
23.5215.4714-61.9942B2=17.6, R1=16.0, R2=17.8USNO-B1Query vizier around this object
24.9215.4458-61.9935B2=19.1, R1=17.9USNO-B1Query vizier around this object


There are 619 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
4.9215.4606-61.9979h=14.0, j=15.5, k=13.52MASSQuery vizier around this object
8.8215.4628-61.9984h=14.2, j=14.8, k=13.92MASSQuery vizier around this object
9.0215.4629-61.9984B2=18.8, I=16.8, R1=16.4, R2=17.2USNO-B1Query vizier around this object
15.2215.4581-62.0011h=12.1, j=13.3, k=11.52MASSQuery vizier around this object
15.4215.4664-61.9946h=13.5, j=14.1, k=13.42MASSQuery vizier around this object
15.5215.4677-61.9975h=14.7, j=15.2, k=14.42MASSQuery vizier around this object
16.1215.4589-62.0013B2=16.9, I=15.3, R1=15.2, R2=15.7USNO-B1Query vizier around this object
16.6215.4510-61.9998h=14.7, j=15.7, k=14.02MASSQuery vizier around this object
17.2215.4535-61.9928h=11.3, j=12.2, k=11.02MASSQuery vizier around this object
17.6215.4483-61.9973B2=18.7, I=15.6, R1=16.4, R2=17.3USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 1216 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.