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Swift Trigger: 993768

Presumed name: GRB 200829A

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BAT 16h 44m 50.88s, +72° 20′ 06.0″
position:(251.212, +72.335 ± 180″)
XRT 16h 44m 50.30s, +72° 19′ 38.3″
position:(251.2096, 72.3273 ± 4.7″)
UVOT 16h 44m 49.03s, +72° 19′ 45.1″
position:(251.2043, +72.3292 ± 0.6″)
Galactic NHI:4.15×100 cm-2
Galactic E(B-V):0.039 mag
Best RA:16h 44m 49.03s= 251.2043 d
Best Dec:+72° 19′ 45.1″= +72.3292 d
Gal Lat:35.19
Gal Long:104.5
Sun angle:82.20°, -6.2 hr East of Sun

1Sper #0 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.

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
0.2′′251.2043772.32925GCN #28307GRB 200829A: Swift detection of a burst with an optical afterglowVizier logo
0.7′′251.2036772.32917GCN #28315GRB 200829A: Global MASTER-Net OT detectionVizier logo
0.7′′251.2047572.32934GCN #28311GRB 200829A: Swift/UVOT DetectionVizier logo
1.0′′251.2048372.32942GCN #28318GRB 200829A: THO optical observatiosVizier logo
1.9′′251.2060472.32922GCN #28313GRB 200829A: Enhanced Swift-XRT positionVizier logo
141.5′′251.1362572.36267GCN #28325GRB 200829A: Swift-BAT refined analysisVizier logo

There are 13 matches in total. See the full table for details.

Catalogue Searches. Searched 3.33′ 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
30.4251.232172.3289LEDA 2748946Query vizier around this object
131.6251.288772.35531RXS J164509.3+722119Query vizier around this object

* RA/Dec in equinox J2000

X-ray sources

RA*Dec* Source table2Observatory Query
131.6251.288772.35530.005126 +/- 0.002303ROSATQuery vizier around this object
190.6251.371572.34430.0071 +/- 0.003ROSATQuery vizier around this object
190.6251.371572.34430 +/- 0ROSATQuery vizier around this object

Queried the X-ray MASTER catalogue.

There are 3 X-ray sources within the position error. The full list is here.

* RA/Dec in equinox J2000

1Energy band for count-rate is mission specific.


RA*Dec*Redshift CatalogueQuery
11.6251.212172.3269NEDQuery vizier around this object
17.8251.220072.3306NEDQuery vizier around this object
23.5251.197572.3353NEDQuery vizier around this object
24.2251.210472.3228NEDQuery vizier around this object
26.5251.180472.3275NEDQuery vizier around this object
28.0251.227572.3259B2=20.2, R2=20.0USNO-B1Query vizier around this object
30.0251.231772.3288B2=13.7, I=13.3, R2=12.3USNO-B1Query vizier around this object
30.6251.232372.3289B=15.0, R=13.0APM-NQuery vizier around this object
30.7251.232572.3289NEDQuery vizier around this object
31.0251.232672.3290h=13.5, j=14.2, k=13.12MASSQuery vizier around this object


There are 292 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
11.6251.212072.3270h=15.9, j=16.3, k=14.92MASSQuery vizier around this object
12.1251.212172.3268B1=17.9, B2=18.0, I=16.8, R1=16.6, R2=17.1USNO-B1Query vizier around this object
25.9251.227572.3278B2=20.5, I=18.0USNO-B1Query vizier around this object
25.9251.225972.3262B2=20.9, R2=19.9USNO-B1Query vizier around this object
26.6251.180672.3275I=19.4, R2=20.1USNO-B1Query vizier around this object
28.2251.228472.3265B1=19.8, R2=19.8USNO-B1Query vizier around this object
30.6251.232372.3289h=14.2, j=15.0, k=13.72MASSQuery vizier around this object
30.8251.232472.3291B1=15.4, B2=14.3, I=13.4, R1=13.8, R2=12.4USNO-B1Query vizier around this object
31.9251.190172.3215B1=19.7, B2=19.3, I=18.5, R1=18.4, R2=18.3USNO-B1Query vizier around this object
35.4251.236372.3307B1=19.6, I=17.8, R1=18.8, R2=17.9USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 121 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.