GRB 180806A: Swift observation summary

Mission:	Fermi/GBM
GRB RA:	11.554°
GRB Dec:	+24.337°
GRB Err:	10.0 arcmin
T0:	2018-08-06 22:38:37 UT
Galactic:	121.41° -38.52°
Galactic N_H:	3.99× 10²⁰ cm^-2
Galactic E(B-V):	0.04235077

Sun distance:	112.83°
Sun angle:	8.35 [hr](West of Sun)
Moon distance:	55.79°
Visibility of this field.

Data analysed so far:

ObsID: 00020812001 with 1.8 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.

Probable afterglow details

A source was found which matches the afterglow criteria.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from Fermi/GBM pos	Exposure	Notes	Vizier
1 [details]	00h 46m 12.86s11.55360°	+24° 20′ 13.2″24.33699°	5.0′′	Good	1.3′′	1.8 ks	The source is fading with 4.2-σ significance.
Mean XRT rate: 2.3 (±0.5) ×10^-2 ct s^-1 Peak XRT rate: 2.3 (±0.5) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.07 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 7.6 (±1.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 7.6 (±1.6) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.03 [What is this?]

¹ Radius, 90% confidence.
² Indicates how likely the source is to be real. See the 2SXPS 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 2 sources have been found in the XRT data. 0 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from Fermi/GBM pos	Exposure	Notes
1 [details]	00h 46m 12.86s11.55360°	+24° 20′ 13.2″24.33699°	5.0′′	Good	1.3′′	1.8 ks	The source is fading with 4.2-σ significance.
Mean XRT rate: 2.3 (±0.5) ×10^-2 ct s^-1 Peak XRT rate: 2.3 (±0.5) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.07 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 7.6 (±1.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 7.6 (±1.6) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.03 [What is this?]
2 [details]	00h 46m 11.89s11.54953°	+24° 10′ 23.3″24.17315°	5.0′′	Good	9.8′	1.8 ks
Mean XRT rate: 9.4 (+3.4, -2.8) ×10^-3 ct s^-1 Peak XRT rate: 9.4 (+3.4, -2.8) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.14 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 1.6 (+0.6, -0.5) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.6 (+0.6, -0.5) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.1 [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.