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Swift Trigger: 811074

Presumed name: Possible GRB 180221A

Back to trigger list.

BAT 21h 47m 05.28s, -72° 52′ 05.5″
position:(326.772, -72.8682 ± 180″)
XRT No position available.
UVOT No position available.
Galactic NHI:3.43×100 cm-2
Galactic E(B-V):0.046 mag
Best RA:21h 47m 05.28s= 326.772 d
Best Dec:-72° 52′ 05.5″= -72.8682 d
Gal Lat:-38.14
Gal Long:318.59
Sun angle:62.38°, 0.5 hr West

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

white image


Blink images with DSS (link via GSFC)

XRT SPER data

SPER results page for this trigger.

Image of the SPER data

There are 11 SPER messges, but no object has been found.

See the SPER page for details of how the SPER image is searched for objects.

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)RA DecDate reportedSource MiscQuery
0.7′′326.77200-72.86800GCN #22427Swift Trigger 811074: possible GRB 180221AVizier logo
0.7′′326.77200-72.86800GCN #22428GRB180221A: MASTER-OAFA optical observationsVizier logo
4.7′′326.77306-72.86947GCN #22432Swift trigger 811074 (possible GRB 180221A): Swift refined analysisVizier logo

Catalogue Searches. Searched 3.33′ around BAT 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
85.7326.6957-72.8759TYC 9331-668-1B=11.982, G=11.222, H=10.006, J=10.275, K=9.959, V=11.425, g=11.659, i=11.145, r=11.290Query 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
49.0326.8180-72.8695B2=20.9, R2=20.4USNO-B1Query vizier around this object
53.6326.7788-72.8831NEDQuery vizier around this object
55.9326.7638-72.8836NEDQuery vizier around this object
62.3326.8271-72.8742NEDQuery vizier around this object
64.5326.7358-72.8825Mag=18.9NEDQuery vizier around this object
80.4326.7192-72.8519Mag=18.9NEDQuery vizier around this object
81.8326.7471-72.8894Mag=18.9NEDQuery vizier around this object
83.5326.6950-72.8729I=18.6, R2=17.3USNO-B1Query vizier around this object
85.9326.6954-72.8758Mag=18.9NEDQuery vizier around this object
96.2326.8483-72.8536Mag=18.9NEDQuery vizier around this object

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

There are 51 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
31.8326.7466-72.8633B2=20.7, I=18.8, R1=19.5, R2=19.1USNO-B1Query vizier around this object
45.7326.7904-72.8565I=19.0, R2=20.9USNO-B1Query vizier around this object
53.4326.8047-72.8793B2=21.8, R2=20.1USNO-B1Query vizier around this object
54.0326.7786-72.8829B2=21.0, I=17.9, R1=19.3, R2=19.8USNO-B1Query vizier around this object
54.3326.7788-72.8829h=15.4, j=16.0, k=15.12MASSQuery vizier around this object
55.2326.7865-72.8533B2=21.0, R2=20.3USNO-B1Query vizier around this object
56.8326.7639-72.8836B2=17.4, I=15.6, R1=16.0, R2=15.9USNO-B1Query vizier around this object
57.0326.7639-72.8837h=14.9, j=15.1, k=14.72MASSQuery vizier around this object
58.6326.7858-72.8838B2=19.6, I=18.7, R1=19.2, R2=18.9USNO-B1Query vizier around this object
62.3326.8271-72.8740B2=17.7, I=15.5, R1=16.3, R2=15.8USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 118 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.