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Swift Trigger: 810300

Presumed name: Swift J1658.2-4242

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BAT 16h 58m 10.80s, -42° 42′ 32.4″
position:(254.545, -42.709 ± 180″)
XRT 16h 58m 12.59s, -42° 41′ 55.2″
position:(254.55245, -42.69866 ± 3.8″)
UVOT No position available.
Galactic NHI:1.60×100 cm-2
Galactic E(B-V):17.840 mag
Best RA:16h 58m 12.59s= 254.55245 d
Best Dec:-42° 41′ 55.2″= -42.69866 d
Gal Lat:0.05
Gal Long:343.25
Sun angle:70.57°, 5.0 hr West

1Sper #2 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

white image

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 10 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
0.5′′254.55240-42.69880GCN #22417Swift J1658.2-4242 (trigger 810300): Swift-XRT positionVizier logo
0.9′′254.55267-42.69847ATEL #11307 Improved position and possible optical counterpart for the new X-ray transient Swift J1658.2-4242 Vizier logo
0.9′′254.55267-42.69847ATEL #11307 Improved position and possible optical counterpart for the new X-ray transient Swift J1658.2-4242 Vizier logo
0.9′′254.55267-42.69847ATEL #11307 Improved position and possible optical counterpart for the new X-ray transient Swift J1658.2-4242 Vizier logo
0.9′′254.55267-42.69847ATEL #11307 Improved position and possible optical counterpart for the new X-ray transient Swift J1658.2-4242 Vizier logo
0.9′′254.55267-42.69847ATEL #11307 Improved position and possible optical counterpart for the new X-ray transient Swift J1658.2-4242 Vizier logo
0.9′′254.55267-42.69847ATEL #11307 Improved position and possible optical counterpart for the new X-ray transient Swift J1658.2-4242 Vizier logo
0.9′′254.55267-42.69847ATEL #11307 Improved position and possible optical counterpart for the new X-ray transient Swift J1658.2-4242 Vizier logo
0.9′′254.55267-42.69847ATEL #11307 Improved position and possible optical counterpart for the new X-ray transient Swift J1658.2-4242 Vizier logo
0.9′′254.55267-42.69847ATEL #11307 Improved position and possible optical counterpart for the new X-ray transient Swift J1658.2-4242 Vizier logo
0.9′′254.55267-42.69847ATEL #11307 Improved position and possible optical counterpart for the new X-ray transient Swift J1658.2-4242 Vizier logo

There are 15 matches in total. See the full table for details.

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
108.9254.5113-42.70032MASS J16580272-4242010H=11.037, J=13.497, K=9.635Query vizier around this object
150.5254.5354-42.7386SDC G343.212+0.038Query vizier around this object
158.9254.5402-42.74192MASS J16580964-4244307H=13.514, K=12.271Query vizier around this object
163.9254.4933-42.7122SSTGLMC G343.2135+00.0794Query vizier around this object
165.1254.6003-42.7281HD 326533B=10.83, H=8.070, J=8.366, K=8.021, V=10.33Query vizier around this object
166.6254.6020-42.7272IRAS 16548-4238Query vizier around this object
187.1254.5297-42.7479TYC 7876-464-1B=12.65, G=11.520, H=10.219, J=10.468, K=10.178, V=11.72Query vizier around this object

There are 7 SIMBAD objects within the position error. The full list is here.

* RA/Dec in equinox J2000

X-ray sources

RA*Dec* Source table2Observatory Query
54.3254.5589-42.71300.126094 +/- 0.0437915XMM-NEWTONQuery vizier around this object
70.9254.5339-42.68450.00669675 +/- 0.00142788XMM-NEWTONQuery vizier around this object
165.5254.5985-42.72970.0163723 +/- 0.00344672XMM-NEWTONQuery vizier around this object
168.6254.6004-42.72950.0169307 +/- 0.00230059XMM-NEWTONQuery vizier around this object
199.7254.5391-42.75320.00366158 +/- 0.000893721XMM-NEWTONQuery vizier around this object

Queried the X-ray MASTER catalogue.

There are 5 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.

Galaxies

RA*Dec*Redshift CatalogueQuery
13.2254.5520-42.7023B2=20.1, R2=16.5USNO-B1Query vizier around this object
13.3254.5527-42.7024B=20.7, R2=20.3SSSQuery vizier around this object
36.9254.5635-42.6924B2=21.1, I=16.4, R1=18.1, R2=18.0USNO-B1Query vizier around this object
44.7254.5367-42.7032B2=17.3, I=13.9, R1=15.1, R2=15.3USNO-B1Query vizier around this object
47.7254.5380-42.6908B2=20.1, I=16.3, R1=18.5USNO-B1Query vizier around this object
50.7254.5357-42.7055B2=19.4, I=16.5, R1=17.7, R2=18.4USNO-B1Query vizier around this object
51.2254.5355-42.7055B=20.4, R2=18.8, i=18.4SSSQuery vizier around this object
53.2254.5344-42.7052B2=20.6, I=16.4, R1=13.3, R2=20.0USNO-B1Query vizier around this object
55.7254.5684-42.6886B2=20.1, I=15.9, R1=17.2, R2=18.3USNO-B1Query vizier around this object
56.9254.5341-42.7070B2=20.0, I=15.8, R1=17.1, R2=17.2USNO-B1Query vizier around this object

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

There are 143 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
1.6254.5529-42.6990h=15.1, j=16.0, k=15.12MASSQuery vizier around this object
8.1254.5499-42.6975h=14.5, j=17.0, k=13.42MASSQuery vizier around this object
9.3254.5552-42.7002h=12.7, j=14.5, k=12.12MASSQuery vizier around this object
13.0254.5526-42.7023B2=20.8, I=16.3, R1=18.4, R2=19.4USNO-B1Query vizier around this object
13.1254.5529-42.7023h=16.0, j=16.3, k=15.72MASSQuery vizier around this object
14.3254.5578-42.6979h=14.3, j=17.4, k=12.82MASSQuery vizier around this object
14.5254.5470-42.6983h=15.1, j=16.2, k=14.52MASSQuery vizier around this object
16.6254.5492-42.7026B2=14.8, I=12.8, R1=13.4, R2=13.6USNO-B1Query vizier around this object
16.8254.5480-42.6954h=13.8, j=14.6, k=12.82MASSQuery vizier around this object
17.0254.5490-42.7027h=12.0, j=12.4, k=12.02MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 1442 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.