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Swift Trigger: 294974

Presumed name: GRB 071021

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BAT 22h 42m 32.64s, +23° 42′ 25.2″
position:(340.636, +23.707 ± 180″)
XRT 22h 42m 34.68s, +23° 43′ 06.6″
position:(340.6445, +23.7185 ± 4.7″)
UVOT No position available.
Galactic NHI:0.00×100 cm-2
Galactic E(B-V):0.065 mag
Best RA:22h 42m 34.68s= 340.6445 d
Best Dec:+23° 43′ 06.6″= +23.7185 d
Gal Lat:
Gal Long:
Sun angle:not found

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.


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
0.0′′340.6445023.71850GCN #6958GRB 071021: Swift detection of a burstVizier logo
4.8′′340.6431223.71808GCN #6963GRB 071021: Swift-XRT Team refined analysis Vizier logo
5.1′′340.6429623.71847GCN #6971GRB 071021: correction to GCNC 6968Vizier logo
5.1′′340.6429623.71847GCN #6968GRB 071021: optical and NIR observationsVizier logo
5.9′′340.6427123.71843GCN #6982Possible radio detection of GRB 071021 with the VLAVizier logo
10.3′′340.6475423.71914GCN #6959GRB 071021: Faulkes Telescope South optical candidateVizier logo
285.3′′340.5733323.76361GCN #6966GRB 071021� Swift-BAT refined analysisVizier logo

There are 13 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

* 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
40.3340.637623.7278I=18.4, R2=19.6USNO-B1Query vizier around this object
45.5340.647423.7061B1=20.4, B2=20.2, I=16.5, R1=18.1, R2=17.9USNO-B1Query vizier around this object
51.5340.638123.7315B=21.3, R=19.7APM-NQuery vizier around this object
56.3340.633323.7067NEDQuery vizier around this object
56.3340.634223.7060I=18.0, R2=19.0USNO-B1Query vizier around this object
61.2340.653223.7335B=20.9, R=20.0APM-NQuery vizier around this object
69.8340.629523.7048B=21.3, R=18.6APM-NQuery vizier around this object
78.3340.653923.7385B=21.3, R=19.2APM-NQuery vizier around this object
82.3340.622023.7284R1=19.6, R2=19.2USNO-B1Query vizier around this object
84.9340.619423.7131B1=20.7, R1=19.8USNO-B1Query vizier around this object


There are 46 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
28.0340.642523.7261h=15.4, j=16.2, k=15.32MASSQuery vizier around this object
28.2340.642723.7261B1=19.3, B2=19.2, I=16.4, R1=17.1, R2=17.4USNO-B1Query vizier around this object
40.9340.656923.7183B1=20.7, B2=20.1, I=18.7, R2=19.5USNO-B1Query vizier around this object
44.0340.631223.7178B1=19.7, B2=19.6, I=17.9, R1=18.6, R2=18.4USNO-B1Query vizier around this object
45.5340.647423.7061h=15.2, j=15.9, k=14.82MASSQuery vizier around this object
45.6340.656523.7123B1=20.3, B2=20.4, R2=19.6USNO-B1Query vizier around this object
51.6340.638023.7316B2=20.5, R1=19.3USNO-B1Query vizier around this object
62.3340.645223.7012R1=19.7, R2=19.6USNO-B1Query vizier around this object
63.4340.625423.7202B1=20.1, B2=19.6, I=15.2, R1=16.6, R2=16.8USNO-B1Query vizier around this object
63.5340.625323.7202h=13.9, j=14.5, k=13.72MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 103 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.