Skip banner and navigation tools.

 |  site map

GRB 240828A: Swift observation summary

Mission:Fermi/LAT
GRB RA:225.492°
GRB Dec:+36.641°
GRB Err:18.1 arcmin
T0:2024-08-28 14:55:06 UT
Galactic:60.20° +60.87°
Galactic NH:1.22× 1020 cm-2
Galactic E(B-V):0.01689742
Sun distance:66.91°
Sun angle:4.54 [hr] (East of Sun)
Moon distance:100.75°
Visibility of this field.
First slew:2024-08-29 00:54:29 UT
First observation:2024-08-29 00:53:55 UT
First analysis: UT

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 tiled field analysis.

So far 3 fields have been scheduled for observations. Data are available and processed for 3 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.

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
3
[details]
15h 02m 03.12s +36° 31′ 42.5″ 3.9′′ Good 6.8′ 2.3 ks The source is 5.4-σ above the RASS limit.
This source may be affected by optical loading
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 6 sources have been found in the XRT data. 3 sources match catalogued sources.

# RA (J2000) Dec (J2000) Err901 Detection
Flag2
Dist from
LAT pos
Exposure Notes Vizier
1
[details]
15h 01m 27.99s +36° 16′ 54.4″ 4.4′′ Good 22.4′ 1.2 ks Matches SIMBAD source: TYC 2568-73-1, 5″ away. Vizier logo
2
[details]
15h 00m 45.24s +36° 30′ 17.8″ 7.1′′ Poor 16.7′ 1.1 ks Matches SIMBAD source: SDSS J150044.80+363018.7, 5.3″ away. Vizier logo
3
[details]
15h 02m 03.12s +36° 31′ 42.5″ 3.9′′ Good 6.8′ 2.3 ks The source is 5.4-σ above the RASS limit.
This source may be affected by optical loading
Vizier logo
4
[details]
15h 00m 48.31s +36° 45′ 11.9″ 8.0′′ Poor 15.5′ 1.1 ks Vizier logo
5
[details]
15h 02m 02.02s +36° 31′ 15.2″ 6.3′′ Poor 7.2′ 2.3 ks This source may be affected by optical loading Vizier logo
6
[details]
15h 02m 03.61s +36° 38′ 14.4″ 5.8′′ Good 1.1′ 1.0 ks Matches SIMBAD source: SDSS J150203.33+363815.9, 3.7″ away. 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