GRB 180718B: Swift observation summary

Mission:	Fermi/LAT
GRB RA:	44.680°
GRB Dec:	-31.500°
GRB Err:	0.7 deg
T0:	2018-07-18 18:18:19 UT
Galactic:	229.61° -62.01°
Galactic N_H:	1.69× 10²⁰ cm^-2
Galactic E(B-V):	0.01643883

Sun distance:	87.65°
Sun angle:	4.89 [hr](West of Sun)
Moon distance:	136.55°
Visibility of this field.

Data analysed so far:

ObsID: 00020803001 with 5.0 ks exposure.

About ToO analysis.

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Sources found so far

So far 4 sources have been found in the XRT data. 2 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from LAT pos	Exposure	Notes
1 [details]	02h 59m 11.03s44.79597°	-31° 40′ 09.2″-31.66921°	3.0′′	Good	11.8′	2.6 ks	Matches SIMBAD source: [VV2006] J025910.9-314009, 5.6″ away.
Mean XRT rate: 9.0 (±2.4) ×10^-3 ct s^-1 Peak XRT rate: 9.0 (±2.4) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.14 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 2.8 (±0.7) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 2.8 (±0.7) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.3 [What is this?]
2 [details]	02h 58m 27.68s44.61532°	-31° 39′ 19.9″-31.65551°	6.1′′	Good	9.9′	5.0 ks
Mean XRT rate: 1.9 (+0.9, -0.7) ×10^-3 ct s^-1 Peak XRT rate: 1.9 (+0.9, -0.7) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.07 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 5.1 (+2.4, -1.9) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 5.1 (+2.4, -1.9) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~1.7 [What is this?]
3 [details]	02h 59m 11.27s44.79697°	-31° 28′ 47.0″-31.47971°	4.0′′	Good	6.1′	5.0 ks
Mean XRT rate: 2.80 (+1.14, -0.91) ×10^-3 ct s^-1 Peak XRT rate: 2.80 (+1.14, -0.91) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.08 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.2 (+0.5, -0.4) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.2 (+0.5, -0.4) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~1.1 [What is this?]
4 [details]	02h 58m 49.28s44.70534°	-31° 26′ 26.5″-31.44068°	5.0′′	Good	3.8′	5.0 ks	Matches SIMBAD source: 2QZ J025849.5-312627, 3.9″ away.
Mean XRT rate: 2.51 (+1.10, -0.87) ×10^-3 ct s^-1 Peak XRT rate: 2.51 (+1.10, -0.87) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.07 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 5.1 (+2.2, -1.8) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 5.1 (+2.2, -1.8) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~1.1 [What is this?]

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

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FITS image.

Exposure map

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FITS exposure map.