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Swift Trigger: 776347

Presumed name: GRB 171004A

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BAT 09h 16m 38.88s, +52° 40′ 47.6″
position:(139.162, 52.6799 ± 180″)
XRT 09h 16m 41.11s, +52° 41′ 37.3″
position:(139.1713, 52.6937 ± 4.9″)
UVOT No position available.
Galactic NHI:1.45×100 cm-2
Galactic E(B-V):0.015 mag
Best RA:09h 16m 41.11s= 139.1713 d
Best Dec:+52° 41′ 37.3″= 52.6937 d
Gal Lat:43.01
Gal Long:164.84
Sun angle:71.54°, 3.41 hr West

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

UVOT white image

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UVOT white image

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Blink images with DSS (link via GSFC)


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
0.0′′139.1713052.69370GCN #21966GRB 171004A: Swift detection of a burstVizier logo
4.5′′139.1694252.69319GCN #21970GRB 171004A: Enhanced Swift-XRT positionVizier logo
4.6′′139.1694652.69308GCN #21972GRB 171004A: Correction to RATIR Astrometry and Photometry Vizier logo
8.0′′139.1694252.69178GCN #21968GRB 171004A: RATIR Optical and NIR Observations Vizier logo
58.1′′139.1500052.68400GCN #21973GRB 171004A: 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
53.7139.162952.7077SDSSCGB 59742.3g=21.502, i=19.453, r=20.048, u=24.163, z=18.933Query vizier around this object
53.8139.156052.7054SDSSCGB 59742.2g=20.267, i=19.518, r=19.800, u=21.002, z=19.511Query vizier around this object
61.6139.158352.7089SDSSCGB 59742Query vizier around this object
65.5139.158652.7102SDSSCGB 59742.4g=21.776, i=19.805, r=20.283, u=25.994, z=19.365Query vizier around this object
74.0139.155652.7119SDSSCGB 59742.1g=20.935, i=18.415, r=19.117, u=23.166, z=17.922Query vizier around this object
163.5139.218852.6586[ZEH2003] RX J0916.8+5238 3B=19.1Query vizier around this object
185.1139.252252.7092SDSS J091700.52+524233.2g=18.95, i=17.319, r=17.750, u=20.8, z=16.98Query vizier around this object
196.9139.233452.6541TYC 3806-899-1B=11.83, G=11.572, H=10.651, J=10.882, K=10.643, V=11.19Query vizier around this object
199.6139.126352.6454SDSSCGB 61453.2g=20.105, i=18.844, r=19.266, u=21.184, z=18.447Query vizier around this object

There are 9 SIMBAD objects within the position error. The full list is here.

* RA/Dec in equinox J2000

X-ray sources

RA*Dec* Source table2Observatory Query
152.9139.203752.65610.3531000018119812 +/- 0ROSATQuery vizier around this object
162.5139.140852.65250.0674000009894371 +/- 0.014999999664723873ROSATQuery vizier around this object
193.3139.214652.64690.2029999941587448 +/- 0.00800000037997961ROSATQuery vizier around this object
193.6139.222952.64990.2775000035762787 +/- 0ROSATQuery vizier around this object

Queried the X-ray MASTER catalogue.

There are 4 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
4.6139.173452.6936R=21.7, g=22.8, i=21.2, u=23.7, z=20.6SDSSQuery vizier around this object
4.6139.173452.6936R=21.6, g=22.7, i=21.2, u=22.5, z=20.5SDSSQuery vizier around this object
4.6139.173352.6936Mag=22.9NEDQuery vizier around this object
12.3139.175652.6915R=21.9, g=23.7, i=21.7, u=23.9, z=21.6SDSSQuery vizier around this object
17.6139.172552.6889Mag=21.6NEDQuery vizier around this object
17.7139.172352.6888R=20.8, g=21.2, i=20.7, u=21.9, z=20.7SDSSQuery vizier around this object
17.7139.172452.6888R=21.1, g=21.7, i=20.9, u=22.7, z=21.2SDSSQuery vizier around this object
27.6139.182952.6968R=21.3, g=22.3, i=20.9, u=23.1, z=20.6SDSSQuery vizier around this object
27.7139.182952.6967Mag=22.3NEDQuery vizier around this object
27.7139.182952.6968R=21.1, g=22.2, i=20.8, u=22.2, z=20.3SDSSQuery vizier around this object


There are 515 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
17.3139.172252.6889B2=21.2, R2=20.9USNO-B1Query vizier around this object
32.3139.181152.7004I=20.8, R=22.8, g=23.6, u=23.4, z=20.0SDSSQuery vizier around this object
33.3139.180552.7011I=18.9, R1=20.0, R2=20.6USNO-B1Query vizier around this object
35.2139.180952.7015I=19.7, R=20.9, g=22.4, u=24.8, z=19.0SDSSQuery vizier around this object
35.2139.181052.7015I=19.8, R=20.8, g=22.3, u=23.4, z=19.1SDSSQuery vizier around this object
44.6139.156252.6853R1=19.8, R2=20.5USNO-B1Query vizier around this object
48.9139.182252.6818I=22.9, R=22.5, g=24.0, u=25.8, z=22.9SDSSQuery vizier around this object
57.4139.150152.6842I=24.7, R=25.2, g=25.6, u=22.3, z=23.0SDSSQuery vizier around this object
61.6139.144552.6883R1=19.8, R2=20.8USNO-B1Query vizier around this object
62.9139.153652.6799I=23.5, R=22.7, g=25.1, u=25.3, z=21.9SDSSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 182 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.