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GRB 220708B: Swift observation summary

Mission:Swift/BAT-GUANO
GRB RA:248.652°
GRB Dec:+36.338°
GRB Err:5.0 arcmin
T0:2022-07-08 02:06:57 UT
Galactic:58.65° +42.32°
Galactic NH:1.32× 1020 cm-2
Galactic E(B-V):0.01690165
Sun distance:110.78°
Sun angle:9.42 [hr] (East of Sun)
Moon distance:59.91°
Visibility of this field.
Data analysed so far:
  • ObsID: 00021508001 with 1.7 ks exposure.

Source 3 has been manually confirmed as the GRB afterglow; data for this object are now available through the main GRB results area for this GRB.

About ToO analysis.

Probable afterglow details

A source was found which matches the afterglow criteria.

# RA (J2000) Dec (J2000) Err901 Detection
Flag2
Dist from
Swift/BAT-GUANO pos
Exposure Notes Vizier
3
[details]
16h 34m 18.97s +36° 20′ 52.0″ 4.0′′ Good 3.6′ 1.7 ks The source is 4.9-σ above the RASS limit. Vizier logo

1 Radius, 90% confidence.
2 Indicates how likely the source is to be real. See the 2SXPS documentation.
* The position was enhanced using astrometry derived from the Swift UVOT.
The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.


Find an upper limit.

Sources found so far

So far 3 sources have been found in the XRT data. 2 sources match catalogued sources.

# RA (J2000) Dec (J2000) Err901 Detection
Flag2
Dist from
Swift/BAT-GUANO pos
Exposure Notes Vizier
1
[details]
16h 34m 50.78s +36° 27′ 16.1″ 5.9′′ Good 7.6′ 1.7 ks Matches known X-ray source: 2SXPS J163450.4+362718 (from 2SXPS), 5″ away.
Matches SIMBAD source: SDSS J163450.61+362718.6, 3.2″ away.
Vizier logo
2
[details]
16h 35m 13.45s +36° 27′ 01.6″ 5.8′′ Good 10.0′ 1.7 ks Matches known X-ray source: 2SXPS J163513.3+362706 (from 2SXPS), 5″ away.
Matches SIMBAD source: 2MASX J16351315+3627004, 6.1″ away.
Vizier logo
3
[details]
16h 34m 18.97s +36° 20′ 52.0″ 4.0′′ Good 3.6′ 1.7 ks The source is 4.9-σ above the RASS limit. Vizier logo

1 Radius, 90% confidence.
2 Indicates how likely the source is to be real. See the 1SXPS documentation.
* The position was enhanced using astrometry derived from the Swift UVOT.
The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.


Image

Select image style: Draggable PNG | JS9.

FITS image.

Image of all observations processed so far

Exposure map

FITS exposure map.

Exposure map of all observations processed so far