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Swift Trigger: 1036139

Presumed name: GRB 210307A

Back to trigger list.

BAT 07h 56m 45.60s, -66° 57′ 46.8″
position:(119.190, -66.963 ± 180″)
XRT 07h 56m 57.39s, -66° 58′ 13.7″
position:(119.23911, -66.97046 ± 4.5″)
UVOT No position available.
Galactic NHI:9.69×100 cm-2
Galactic E(B-V):0.141 mag
Best RA:07h 56m 57.39s= 119.23911 d
Best Dec:-66° 58′ 13.7″= -66.97046 d
Gal Lat:-18.75
Gal Long:279.58
Sun angle:100.00°, -8.7 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.


SPER results page for this trigger.

Image of the SPER data

There are 2 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
2.0′′119.23831-66.97092GCN #29624GRB 210307A: Swift-XRT refined AnalysisVizier logo
2.8′′119.23958-66.96969GCN #29610GRB 210307A: Swift detection of a burstVizier logo
20.4′′119.24375-66.96508GCN #29632GRB 210307A: Swift-BAT refined analysisVizier logo
74.2′′119.19000-66.96300GCN #29609Swift GRB210307.36: Global MASTER-Net observations report 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

* 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
18.3119.2304-66.9667NEDQuery vizier around this object
18.5119.2304-66.9667NEDQuery vizier around this object
26.0119.2542-66.9664NEDQuery vizier around this object
26.1119.2503-66.9647I=18.8, R2=21.2USNO-B1Query vizier around this object
28.7119.2200-66.9678NEDQuery vizier around this object
28.9119.2198-66.9677B=22.2, R2=20.5SSSQuery vizier around this object
29.8119.2277-66.9635B2=19.6, I=17.2, R1=18.4, R2=18.4USNO-B1Query vizier around this object
30.1119.2275-66.9633NEDQuery vizier around this object
34.6119.2458-66.9797NEDQuery vizier around this object
35.1119.2366-66.9802B=22.1SSSQuery vizier around this object


There are 321 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
18.2119.2307-66.9666B2=16.1, I=14.6, R1=15.1, R2=15.2USNO-B1Query vizier around this object
18.3119.2303-66.9667h=14.1, j=14.6, k=14.02MASSQuery vizier around this object
26.1119.2543-66.9663B2=20.3, R2=20.2USNO-B1Query vizier around this object
30.1119.2276-66.9634h=14.9, j=15.6, k=14.92MASSQuery vizier around this object
34.5119.2459-66.9797B2=18.0, I=16.4, R1=16.5, R2=16.2USNO-B1Query vizier around this object
34.6119.2459-66.9797h=14.9, j=15.4, k=15.02MASSQuery vizier around this object
40.4119.2410-66.9817B2=19.0, I=18.3, R1=18.6, R2=18.6USNO-B1Query vizier around this object
41.4119.2138-66.9764B2=17.9, I=17.2, R1=17.4, R2=17.2USNO-B1Query vizier around this object
41.5119.2137-66.9763h=16.0, j=16.2, k=15.52MASSQuery vizier around this object
42.0119.2473-66.9593B2=16.3, I=15.3, R1=15.3, R2=15.6USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 284 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.