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Swift Trigger: 765008

Presumed name: GRB 170728A

Back to trigger list.

BAT 03h 55m 35.52s, +12° 09′ 10.8″
position:(58.898, 12.153 ± 180″)
XRT 03h 55m 33.23s, +12° 10′ 59.3″
position:(58.88846, 12.18313 ± 3.7″)
UVOT No position available.
Galactic NHI:1.31×100 cm-2
Galactic E(B-V):0.274 mag
Best RA:03h 55m 33.23s= 58.88846 d
Best Dec:+12° 10′ 59.3″= 12.18313 d
Gal Lat:-30.52
Gal Long:177.68
Sun angle:66.08°, 4.6 hr West

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

UVOT u image

u 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 4 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′′58.8884612.18313GCN #21367GRB 170728A: Swift detection of a burstVizier logo
4.7′′58.8882112.18186GCN #21386GRB 170728A: Swift/UVOT DetectionVizier logo
6.0′′58.8883112.18148GCN #21368GRB 170728A: Enhanced Swift-XRT positionVizier logo
67.3′′58.9010012.16900GCN #21370GRB 170728A: Swift-BAT refined analysis Vizier 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
26.458.881212.1850TYC 662-409-1B=12.98, H=10.566, J=10.762, K=10.473, V=11.94Query vizier around this object
161.358.919012.1498TYC 662-1494-1B=13.42, H=10.623, J=10.98, K=10.532, V=11.93Query 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
12.658.885512.1851B2=21.1, R1=18.8USNO-B1Query vizier around this object
14.558.884912.1851R1=18.2, R2=20.7USNO-B1Query vizier around this object
59.758.893412.1673B=19.6, R=19.9APM-NQuery vizier around this object
59.958.871512.1849B=19.6, R=19.5APM-NQuery vizier around this object
61.658.892912.1666B1=20.4, R1=19.7USNO-B1Query vizier around this object
71.958.904712.1952B1=19.5, R2=20.7USNO-B1Query vizier around this object
81.558.898012.2037B=19.6, R=19.8APM-NQuery vizier around this object
82.958.880512.2048B1=19.4, I=18.6USNO-B1Query vizier around this object
85.958.911912.1899B1=17.5, I=15.7USNO-B1Query vizier around this object
87.258.865612.1925B=17.7, R=15.5APM-NQuery vizier around this object


There are 53 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
13.458.892112.1842B1=19.8, B2=21.8, R1=18.5USNO-B1Query vizier around this object
26.558.881212.1850h=10.6, j=10.8, k=10.52MASSQuery vizier around this object
35.258.878612.1850h=15.8, j=16.1, k=14.82MASSQuery vizier around this object
36.958.883712.1923B2=20.1, I=19.3, R1=19.8, R2=19.9USNO-B1Query vizier around this object
41.758.897512.1906h=13.7, j=14.1, k=13.62MASSQuery vizier around this object
42.058.897612.1907B1=15.8, B2=15.8, I=14.7, R1=14.8, R2=15.1USNO-B1Query vizier around this object
53.658.903712.1826I=18.7, R1=19.9, R2=20.5USNO-B1Query vizier around this object
71.558.904412.1954B1=20.5, B2=20.2, I=18.9, R2=20.3USNO-B1Query vizier around this object
73.958.905412.1953I=19.2, R1=20.1, R2=20.0USNO-B1Query vizier around this object
77.858.885212.2045h=15.5, j=16.0, k=15.22MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 98 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.