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GRB 200517A: Swift observation summary

Mission:MAXI
GRB RA:17.230°
GRB Dec:-50.745°
GRB Err:1.5 deg
T0:2020-05-17 11:26:56 UT
Galactic:296.08° -66.15°
Galactic NH:1.58× 1020 cm-2
Galactic E(B-V):0.01115602
Sun distance:77.59°
Sun angle:2.50 [hr](West of Sun)
Moon distance:47.52°
Visibility of this field.

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 tiled field analysis.

So far 7 fields have been scheduled for observations. Data are available and processed for 7 of these. The list gives the exposure time used in source detection. If any individual sources were selected for follow-up observations, the source detection is not repeated for the follow up observations and the table below is not updated.

An additional 1 field has also been used for follow up observations. These data are not searched for sources, but are used to update the light curves etc of any sources already found.

Probable afterglow details

A source was found which matches the afterglow criteria.

# RA (J2000) Dec (J2000) Err901 Detection
Flag2
Dist from
MAXI pos
Exposure Notes Vizier
1
[details]
01h 10m 47.28s -50° 55′ 24.1″ 4.1′′ Good 20.7′ 4.4 ks The source is fading with 4.8-σ significance.
The source is 7.3-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.


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
MAXI pos
Exposure Notes Vizier
1
[details]
01h 10m 47.28s -50° 55′ 24.1″ 4.1′′ Good 20.7′ 4.4 ks The source is fading with 4.8-σ significance.
The source is 7.3-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