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Swift Trigger: 821881

Presumed name: GRB 180404A

Back to trigger list.

BAT 05h 34m 15.36s, -37° 10′ 12.0″
position:(83.564, -37.170 ± 180″)
XRT 05h 34m 11.64s, -37° 10′ 06.2″
position:(83.5485, -37.1684 ± 2.4″)
UVOT 05h 34m 11.62s, -37° 10′ 03.7″
position:(83.5484, -37.1677 ± 0.7″)
Galactic NHI:2.77×100 cm-2
Galactic E(B-V):0.032 mag
Best RA:05h 34m 11.62s= 83.5484 d
Best Dec:-37° 10′ 03.7″= -37.1677 d
Gal Lat:-30.66
Gal Long:241.97
Sun angle:78.23°, -4.7 hr East of Sun

1Sper #5 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 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
0.2′′83.54846-37.16775GCN #22589GRB 180404A: Swift detection of a burst with an optical afterglowVizier logo
0.3′′83.54850-37.16775GCN #22605GRB 180404A: Swift/UVOT DetectionVizier logo
0.7′′83.54863-37.16781GCN #22591GRB 180404A: VLT/X-shooter redshiftVizier logo
2.3′′83.54904-37.16808GCN #22592GRB 180404A: Enhanced Swift-XRT positionVizier logo
24.1′′83.54000-37.16800GCN #22599GRB 180404A: Swift-BAT refined analysisVizier logo

There are 11 matches in total. See the full table for details.

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
196.383.5780-37.1192TYC 7068-364-1B=12.11, G=11.304, H=9.983, J=10.263, K=9.936, V=11.27Query 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
17.583.5534-37.1713B2=20.4, R1=20.0, R2=20.0USNO-B1Query vizier around this object
19.583.5537-37.1711Mag=20.0NEDQuery vizier around this object
27.883.5433-37.1749B=22.3SSSQuery vizier around this object
29.483.5393-37.1720B=21.8SSSQuery vizier around this object
42.083.5490-37.1801I=18.9, R2=17.8USNO-B1Query vizier around this object
44.183.5429-37.1561Mag=19.0NEDQuery vizier around this object
48.283.5348-37.1761B2=21.0, R2=21.3USNO-B1Query vizier around this object
51.583.5342-37.1770B2=19.2, I=18.6, R2=20.5USNO-B1Query vizier around this object
62.783.5658-37.1577B=21.4, R2=19.9SSSQuery vizier around this object
63.583.5612-37.1540B=22.3SSSQuery vizier around this object


There are 77 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
4.583.5475-37.1694B2=20.6, I=18.1, R1=19.5, R2=19.8USNO-B1Query vizier around this object
15.683.5447-37.1653B2=21.1, R2=20.7USNO-B1Query vizier around this object
16.283.5448-37.1650B2=20.6, R1=20.4, R2=20.9USNO-B1Query vizier around this object
30.583.5513-37.1766B2=20.6, I=18.6, R1=20.0, R2=20.6USNO-B1Query vizier around this object
31.083.5514-37.1767h=15.9, j=16.3, k=15.72MASSQuery vizier around this object
31.383.5378-37.1666B2=18.6, I=17.9, R1=17.8, R2=17.7USNO-B1Query vizier around this object
31.683.5377-37.1666h=16.1, j=16.7, k=17.02MASSQuery vizier around this object
42.983.5360-37.1750B2=19.2, I=18.0, R1=18.6, R2=18.7USNO-B1Query vizier around this object
44.283.5495-37.1807B2=20.5, I=18.3, R1=19.2, R2=19.7USNO-B1Query vizier around this object
46.683.5479-37.1813B2=20.6, I=19.0, R2=19.0USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 154 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.