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GRB 170121B: Swift observation summary

Mission:Fermi/GBM
GRB RA:72.574°
GRB Dec:-9.267°
GRB Err:0.6 arcsec
T0:2017-01-21 14:44:03 UT
Galactic:207.33° -31.09°
Galactic NH:4.46× 1020 cm-2
Galactic E(B-V):0.0629658
Sun distance:121.64°
Sun angle:8.57 [hr](East of Sun)
Moon distance:147.80°
Visibility of this field.
Data analysed so far:
  • ObsID: 00020729001 with 4.9 ks exposure.

About ToO analysis.

Find an upper limit.

Sources found so far

So far 5 sources have been found in the XRT data. 4 sources match catalogued sources.

# RA (J2000) Dec (J2000) Err901 Detection
Flag2
Dist from
Fermi/GBM pos
Exposure Notes Vizier
1
[details]
04h 50m 36.99s -09° 13′ 35.0″ 11.4′′ Good 5.3′ 4.9 ks This source may be affected by extended emission
Matches known X-ray source: 1RXS J045035.1-091330 (from ROSAT/RASSFSC), 28.5″ away.
Matches SIMBAD source: 2MASX J04503608-0913280, 15.1″ away.
Vizier logo
2
[details]
04h 49m 33.22s -09° 12′ 11.0″ 3.7′′ Good 11.6′ 4.9 ks Matches known X-ray source: MS0447.1-0917 (from EINSTEIN/EMSS), 4.8″ away.
Matches SIMBAD source: QSO B0447-092, 4.7″ away.
Vizier logo
3
[details]
04h 50m 32.62s -09° 14′ 31.3″ 2.4′′ Good 4.0′ 4.9 ks Vizier logo
4
[details]
04h 50m 35.02s -09° 13′ 45.7″ 9.6′′ Good 4.8′ 4.9 ks This source may be affected by extended emission
Matches known X-ray source: 1RXS J045035.1-091330 (from ROSAT/RASSFSC), 15.7″ away.
Vizier logo
5
[details]
04h 50m 35.44s -09° 13′ 13.0″ 9.2′′ Good 5.2′ 4.9 ks This source may be affected by extended emission
Matches known X-ray source: 1RXS J045035.1-091330 (from ROSAT/RASSFSC), 17.7″ 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