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Swift Trigger: 853882

Presumed name: GRB 180818B

Back to trigger list.

BAT 06h 56m 56.40s, +39° 19′ 44.4″
position:(104.235, 39.329 ± 180″)
XRT 06h 56m 54.10s, +39° 18′ 55.1″
position:(104.2254, 39.3153 ± 2.3″)
UVOT No position available.
Galactic NHI:9.37×100 cm-2
Galactic E(B-V):0.098 mag
Best RA:06h 56m 54.10s= 104.2254 d
Best Dec:+39° 18′ 55.1″= 39.3153 d
Gal Lat:17.78
Gal Long:177.25
Sun angle:46.22°, 2.9 hr West

1Sper #4 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.


XRT SPER data

SPER results page for this trigger.

Image of the SPER data

There are 5 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
2.4′′104.2247039.31571GCN #23151GRB 180818B: Enhanced Swift-XRT positionVizier logo
5.1′′104.2246739.31661GCN #23149GRB 180818B: Swift detection of a burstVizier logo
19.6′′104.2270039.31000GCN #23155GRB 180818B: 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).

SIMBAD

RA*Dec*SIMBAD name Query
160.7104.188139.3493TYC 2942-1983-1B=13.63, G=12.2355, H=10.353, J=10.793, K=10.23, V=12.19Query 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.

Galaxies

RA*Dec*Redshift CatalogueQuery
28.4104.233339.3106NEDQuery vizier around this object
31.7104.218339.3083NEDQuery vizier around this object
44.5104.226239.3031NEDQuery vizier around this object
49.4104.241639.3209B1=20.7, B2=20.9, R2=19.0USNO-B1Query vizier around this object
49.5104.241439.3212B1=20.5, R2=19.4USNO-B1Query vizier around this object
52.4104.227439.3298B2=20.7, I=18.7, R2=19.5USNO-B1Query vizier around this object
57.9104.243339.3072NEDQuery vizier around this object
63.8104.248339.3145B2=21.6, R1=19.9, R2=19.8USNO-B1Query vizier around this object
64.1104.248439.3148B=21.2, R=20.0APM-NQuery vizier around this object
69.9104.203339.3061NEDQuery vizier around this object

Queried APM-N, SDSS, PSCz, SSS, NED, 2MASSX, USNO-B1.

There are 116 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

Stars

RA*Dec* CatalogueQuery
28.4104.233639.3106B1=20.1, B2=19.2, I=17.1, R1=17.9, R2=17.8USNO-B1Query vizier around this object
28.5104.233639.3106h=15.4, j=16.3, k=15.42MASSQuery vizier around this object
30.8104.218439.3087B2=21.5, I=18.2, R1=20.2USNO-B1Query vizier around this object
31.7104.218439.3083h=16.7, j=17.0, k=15.82MASSQuery vizier around this object
44.0104.213539.3233R1=20.2, R2=19.8USNO-B1Query vizier around this object
44.5104.226239.3030h=15.7, j=16.1, k=15.82MASSQuery vizier around this object
44.7104.226239.3029B1=18.7, B2=18.0, I=16.9, R1=17.2, R2=17.1USNO-B1Query vizier around this object
53.6104.227739.3301B2=20.8, I=18.3, R1=19.1, R2=18.9USNO-B1Query vizier around this object
57.6104.243139.3071B1=17.6, B2=17.3, I=16.0, R1=16.7, R2=16.6USNO-B1Query vizier around this object
57.6104.243139.3070h=15.3, j=15.7, k=15.42MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 167 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.