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Swift Trigger: 1038247

Presumed name: GRB 210323A

Back to trigger list.

BAT 21h 11m 48.48s, +25° 22′ 40.8″
position:(317.952, +25.378 ± 180″)
XRT 21h 11m 47.06s, +25° 22′ 11.6″
position:(317.94609, 25.36990 ± 3.5″)
UVOT No position available.
Galactic NHI:8.14×100 cm-2
Galactic E(B-V):0.121 mag
Best RA:21h 11m 47.06s= 317.94609 d
Best Dec:+25° 22′ 11.6″= 25.36990 d
Gal Lat:-15.48
Gal Long:72.83
Sun angle:49.58°, 3.0 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

No UVOT images are currently available.


SPER results page for this trigger.

Image of the SPER data

There are 7 SPER messages, and 2 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′′317.9460925.36990GCN #29699GRB 210323A: Swift detection of a short burstVizier logo
2.8′′317.9466525.36930GCN #29704GRB 210323A: Enhanced Swift-XRT positionVizier logo
4.1′′317.9472525.36947GCN #29720GRB 210323A: Gemini-North Optical Source DetectionVizier logo
4.4′′317.9472125.36922GCN #29703GRB 210323A: NOT optical afterglow candidateVizier logo
4.5′′317.9472925.36928GCN #29708GRB 210323A: Mondy optical observations´┐Ż counterpart detectionVizier logo
63.1′′317.9445825.35242GCN #29721GRB 210323A: 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
109.8317.935325.3410TYC 2177-2376-1B=13.03, G=12.2007, H=10.746, J=11.069, K=10.681, V=12.23Query vizier around this object
150.7317.982125.3963HD 201913B=9.27, G=9.2350, V=9.26Query 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
13.3317.947125.3664NEDQuery vizier around this object
24.1317.939425.3727B2=21.2, R2=20.0USNO-B1Query vizier around this object
25.2317.953325.3675NEDQuery vizier around this object
26.2317.949625.3633NEDQuery vizier around this object
26.7317.949025.3630B1=20.4, B2=19.9, I=18.2, R1=19.1, R2=19.1USNO-B1Query vizier around this object
29.1317.939225.3750NEDQuery vizier around this object
30.6317.950825.3772NEDQuery vizier around this object
32.3317.936325.3722NEDQuery vizier around this object
38.0317.935025.3733NEDQuery vizier around this object
39.3317.945425.3589NEDQuery vizier around this object


There are 274 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
24.9317.953325.3675B1=18.9, B2=18.0, I=16.9, R1=17.6, R2=17.3USNO-B1Query vizier around this object
25.2317.953325.3674h=15.8, j=16.3, k=15.52MASSQuery vizier around this object
29.0317.939325.3752B1=18.6, B2=17.7, I=15.9, R1=16.7, R2=16.5USNO-B1Query vizier around this object
29.1317.939225.3751h=14.7, j=15.2, k=14.52MASSQuery vizier around this object
29.4317.949325.3775B1=20.2, B2=20.0, I=18.3, R1=19.1, R2=18.8USNO-B1Query vizier around this object
30.5317.950925.3772B2=21.0, I=18.2, R1=19.3, R2=19.3USNO-B1Query vizier around this object
30.6317.951025.3772h=16.0, j=16.9, k=15.62MASSQuery vizier around this object
32.3317.936525.3721h=12.8, j=13.5, k=12.72MASSQuery vizier around this object
32.8317.936325.3723B1=18.0, B2=17.2, I=14.5, R1=15.5, R2=15.3USNO-B1Query vizier around this object
36.7317.956525.3660B1=20.6, B2=20.9, I=19.0, R2=19.6USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 317 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.