GRB 150323B: Swift observation summary

Mission:	Swift/BAT
GRB RA:	260.447°
GRB Dec:	+38.316°
GRB Err:	2.0 arcmin
T0:	2015-03-23 09:28:36 UT
Galactic:	62.73° +33.29°
Galactic N_H:	3.75× 10²⁰ cm^-2
Galactic E(B-V):	0.04533205

Sun distance:	98.61°
Sun angle:	6.79 [hr] (West of Sun)
Moon distance:	117.32°
Visibility of this field.

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 field analysis.

Probable afterglow details

A source was found which matches the afterglow criteria.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from Swift/BAT pos	Exposure	Notes	Vizier
1 [details]	17h 21m 48.83s260.45345°	+38° 19′ 04.6″38.31795°	4.3′′	Good	0.3′	4.1 ks	The source is fading.
Mean XRT rate: 1.03 (±0.17) ×10^-2 ct s^-1 Peak XRT rate: 1.1 (±0.3) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.0107 (±0.0018) ct s^-1 Peak XRT rate converted to PSPC: 0.012 (±0.003) ct s^-1 Mean XRT flux: 4.6 (±0.8) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 5.1 (±1.4) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~4.50×10^-5 [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.

Find an upper limit.

Sources found so far

So far 2 sources have been found in the XRT data. 1 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from Swift/BAT pos	Exposure	Notes
1 [details]	17h 21m 48.83s260.45345°	+38° 19′ 04.6″38.31795°	4.3′′	Good	0.3′	4.1 ks	The source is fading.
Mean XRT rate: 1.03 (±0.17) ×10^-2 ct s^-1 Peak XRT rate: 1.1 (±0.3) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.0107 (±0.0018) ct s^-1 Peak XRT rate converted to PSPC: 0.012 (±0.003) ct s^-1 Mean XRT flux: 4.6 (±0.8) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 5.1 (±1.4) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~4.50×10^-5 [What is this?]
2 [details]	17h 21m 50.35s260.45979°	+38° 16′ 58.5″38.28292°	6.6′′	Good	2.1′	4.1 ks	A SIMBAD object matches this source's position: (Show) SDSS J172150.45+381700.1, 2.1′′ away
Mean XRT rate: 2.3 (±1.0) ×10^-3 ct s^-1 Peak XRT rate: 2.3 (±1.0) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 5.1 (±2.3) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 5.1 (±2.3) ×10^-3 ct s^-1 Mean XRT flux: 6.0 (±2.7) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 6.0 (±2.7) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~5.00×10^-4 [What is this?]

Image

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FITS image.

Exposure map

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FITS exposure map.