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GRB 230911A: Swift observation summary

GRB RA:57.502°
GRB Dec:-29.825°
GRB Err:1.2 arcsec
T0:2023-09-11 03:09:32 UT
Galactic:227.74° -50.91°
Galactic NH:9.75× 1019 cm-2
Galactic E(B-V):0.0105385
Sun distance:110.84°
Sun angle:7.42 [hr](West of Sun)
Moon distance:86.86°
Visibility of this field.
Data analysed so far:
  • ObsID: 00021622001 with 0.2 ks exposure.
  • ObsID: 00021622002 with 2.6 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.

Find an upper limit.

Sources found so far

So far 2 sources have been found in the XRT data. 0 sources match catalogued sources.

# RA (J2000) Dec (J2000) Err901 Detection
Dist from
Fermi/GBM pos
Exposure Notes Vizier
03h 50m 00.65s -29° 49′ 33.2″ 3.4′′ Good 3.9′′ 2.8 ks Vizier logo
03h 49m 42.59s -29° 51′ 15.8″ 8.2′′ Good 4.3′ 2.8 ks 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.


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