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Swift Trigger: 1064221

Presumed name: GRB 210807A

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BAT 05h 06m 42.48s, +58° 14′ 42.0″
position:(76.677, +58.245 ± 180″)
XRT 05h 06m 43.56s, +58° 15′ 01.1″
position:(76.6815, 58.2503 ± 11.1″)
UVOT 05h 06m 43.90s, +58° 14′ 58.9″
position:(76.6829, +58.2497 ± 0.6″)
Galactic NHI:2.04×1021 cm-2
Galactic E(B-V):0.524 mag
Best RA:05h 06m 43.90s= 76.6829 d
Best Dec:+58° 14′ 58.9″= +58.2497 d
Gal Lat:10.44
Gal Long:151.63
Sun angle:60.83°, 4.0 hr West

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.


SPER results page for this trigger.

No SPER data received yet. Refresh this page to check again.

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)RA DecDate reportedSource MiscQuery
0.3′′76.6829258.24978GCN #30600GRB 210807A: Swift detection of a burst with an optical counterpartVizier logo
0.3′′76.6828758.24978GCN #30618GRB 210807A: Swift/UVOT DetectionVizier logo
1.7′′76.6837558.24981GCN #30603GRB 210807A: Enhanced Swift-XRT positionVizier logo
41.4′′76.6660058.25700GCN #30623GRB 210807A: Swift-BAT refined analysisVizier logo

Catalogue Searches. Searched 200′ around UVOT 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
102.876.701758.2229TYC 3747-1829-1B=11.80, G=10.0487, H=7.363, J=8.014, K=7.192, V=10.59Query vizier around this object
192.376.654058.1985TYC 3746-1402-1B=11.97, G=11.3759, H=10.307, J=10.494, K=10.246, V=11.28Query 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
13.776.690058.2506NEDQuery vizier around this object
25.376.669958.2481B1=20.7, I=17.8, R2=20.2USNO-B1Query vizier around this object
32.376.693758.2567NEDQuery vizier around this object
36.076.665458.2536NEDQuery vizier around this object
37.276.679258.2597NEDQuery vizier around this object
37.976.702558.2483NEDQuery vizier around this object
44.576.665458.2414NEDQuery vizier around this object
47.976.680458.2364NEDQuery vizier around this object
49.476.657158.2478NEDQuery vizier around this object
50.876.672158.2625NEDQuery vizier around this object


There are 261 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
32.376.693858.2566h=15.2, j=15.6, k=15.52MASSQuery vizier around this object
32.476.693758.2567B1=18.2, B2=18.8, I=16.5, R1=16.7, R2=16.7USNO-B1Query vizier around this object
36.076.665358.2535h=16.4, j=17.1, k=16.02MASSQuery vizier around this object
36.676.665158.2537B1=20.0, B2=20.0, I=17.6, R1=17.8, R2=18.1USNO-B1Query vizier around this object
37.276.679158.2598h=13.8, j=14.6, k=13.62MASSQuery vizier around this object
37.576.702658.2484B2=19.8, I=17.6, R1=18.0, R2=18.4USNO-B1Query vizier around this object
37.676.678758.2599I=15.9, R2=17.2USNO-B1Query vizier around this object
37.976.702858.2484h=16.2, j=16.8, k=17.32MASSQuery vizier around this object
38.076.679058.2601B1=20.4, B2=20.4, I=16.1, R1=16.8, R2=17.3USNO-B1Query vizier around this object
44.576.665258.2416B1=19.1, B2=19.3, I=16.5, R1=16.8, R2=16.9USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 260 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.