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GRB 201020B: Swift observation summary

Mission:Fermi/LAT
GRB RA:74.870°
GRB Dec:+76.980°
GRB Err:12.6 arcmin
T0:2020-10-20 17:33:54 UT
Galactic:135.19° +20.50°
Galactic NH:9.51× 1020 cm-2
Galactic E(B-V):0.1486823
Sun distance:109.01°
Sun angle:8.73 [hr](West of Sun)
Moon distance:126.22°
Visibility of this field.
Data analysed so far:
  • ObsID: 00021035001 with 1.7 ks exposure.

Source 1 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
LAT pos		 Exposure Notes Vizier
1
[details]		 05h 01m 52.03s +77° 04′ 05.9″ 2.0′′ Good 9.6′ 1.7 ks The source is 7.1-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 1 sources have been found in the XRT data. 0 sources match catalogued sources.

# RA (J2000) Dec (J2000) Err901 Detection
Flag2		 Dist from
LAT pos		 Exposure Notes Vizier
1
[details]		 05h 01m 52.03s +77° 04′ 05.9″ 2.0′′ Good 9.6′ 1.7 ks The source is 7.1-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