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Swift Trigger: 535026

Presumed name: GRB 121001A

Back to trigger list.

BAT 18h 24m 07.92s, -05° 40′ 01.2″
position:(276.033, -5.667 ± 180″)
XRT 18h 24m 07.90s, -05° 39′ 55.8″
position:(276.0329, -5.6655 ± 2.4″)
UVOT No position available.
Galactic NHI:4.53×1021 cm-2
Galactic E(B-V):NED unavailable
Best RA:18h 24m 07.90s= 276.0329 d
Best Dec:-05° 39′ 55.8″= -5.6655 d
Gal Lat:3.45
Gal Long:24.77
Sun angle:87.62°, -5.9 hr East of Sun

1Sper #7 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

UVOT u image

u image

UVOT white image

white image

UVOT white image

white image

Blink images with DSS (link via GSFC)


SPER results page for this trigger.

Image of the SPER data

There are 11 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
0.8′′276.03283-5.66528GCN #13835Swift Trigger 535026: Optical decay confirmation with IAC80 and BOOTES-2/TELMA.Vizier logo
1.0′′276.03267-5.66536GCN #13840GRB 121001A: GROND Afterglow ConfirmationVizier logo
1.5′′276.03250-5.66536GCN #13833GRB 121001A: possible optical counterpartVizier logo
2.6′′276.03227-5.66587GCN #13837GRB 121001A: Enhanced Swift-XRT PositionVizier logo
2.6′′276.03227-5.66587GCN #13838GRB 121001A: Swift-XRT refined AnalysisVizier logo
15.0′′276.02900-5.66700GCN #13836Swift Trigger 535026 is GRB 121001A: Swift-BAT refined analysisVizier 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
8.9276.0304-5.6653B=21.2, R2=20.3SSSQuery vizier around this object
12.5276.0313-5.6686R1=19.2, R2=19.2USNO-B1Query vizier around this object
12.5276.0329-5.6690R1=18.4, R2=18.6USNO-B1Query vizier around this object
18.0276.0308-5.6610B=19.2, R2=16.0, i=17.9SSSQuery vizier around this object
19.8276.0299-5.6609B=19.0, R2=16.0, i=16.0SSSQuery vizier around this object
20.4276.0383-5.6638B=19.6, R2=18.1, i=17.4SSSQuery vizier around this object
24.5276.0294-5.6597B=21.0SSSQuery vizier around this object
27.1276.0399-5.6682B=21.4, R2=20.0SSSQuery vizier around this object
33.3276.0368-5.6571B=19.0, R2=17.8, i=17.3SSSQuery vizier around this object
37.2276.0430-5.6633B=21.6, R2=19.5, i=19.2SSSQuery vizier around this object


There are 368 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
6.4276.0321-5.6639h=15.6, j=16.3, k=15.12MASSQuery vizier around this object
7.5276.0350-5.6660h=15.3, j=16.2, k=15.22MASSQuery vizier around this object
10.3276.0350-5.6636h=14.9, j=15.8, k=14.42MASSQuery vizier around this object
12.2276.0314-5.6686h=15.5, j=16.1, k=16.02MASSQuery vizier around this object
12.4276.0329-5.6690h=15.3, j=16.0, k=15.12MASSQuery vizier around this object
14.3276.0369-5.6653h=14.7, j=15.5, k=14.32MASSQuery vizier around this object
15.2276.0344-5.6695h=13.7, j=14.6, k=13.52MASSQuery vizier around this object
15.8276.0345-5.6696I=16.5, R1=17.5, R2=17.6USNO-B1Query vizier around this object
16.6276.0336-5.6609h=15.5, j=16.3, k=16.32MASSQuery vizier around this object
17.4276.0310-5.6610h=13.6, j=14.2, k=13.42MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 1229 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.