GRB 150627A: Swift observation summary

Mission:	Fermi/LAT
GRB RA:	117.490°
GRB Dec:	-51.560°
GRB Err:	3.0 arcmin
T0:	2015-06-27 04:23:20 UT
Galactic:	264.89° -12.56°
Galactic N_H:	1.46× 10²¹ cm^-2
Galactic E(B-V):	0.3197039

Sun distance:	77.30°
Sun angle:	1.45 [hr] (East of Sun)
Moon distance:	85.37°
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 LAT pos	Exposure	Notes	Vizier
1 [details]	07h 49m 52.94s117.47056°	-51° 29′ 23.9″-51.48997°	3.5′′	Good	4.3′	4.5 ks	The source is brighter than the RASS limit.
Mean XRT rate: 0.396 (±0.013) ct s^-1 Peak XRT rate: 0.77 (±0.17) ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.418 (±0.014) ct s^-1 Peak XRT rate converted to PSPC: 0.82 (±0.18) ct s^-1 Mean XRT flux: 1.52 (±0.05) ×10^-11 erg cm^-1s^-1 Peak XRT flux: 3.0 (±0.7) ×10^-11 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~6.30×10^-7 [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 6 sources have been found in the XRT data. 1 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from LAT pos	Exposure	Notes
1 [details]	07h 49m 52.94s117.47056°	-51° 29′ 23.9″-51.48997°	3.5′′	Good	4.3′	4.5 ks	The source is brighter than the RASS limit.
Mean XRT rate: 0.396 (±0.013) ct s^-1 Peak XRT rate: 0.77 (±0.17) ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.418 (±0.014) ct s^-1 Peak XRT rate converted to PSPC: 0.82 (±0.18) ct s^-1 Mean XRT flux: 1.52 (±0.05) ×10^-11 erg cm^-1s^-1 Peak XRT flux: 3.0 (±0.7) ×10^-11 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~6.30×10^-7 [What is this?]
2 [details]	07h 49m 20.31s117.33461°	-51° 33′ 27.2″-51.55756°	4.3′′	Good	5.8′	4.3 ks
Mean XRT rate: 5.1 (±1.4) ×10^-3 ct s^-1 Peak XRT rate: 5.2 (±1.8) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 3.3 (±0.9) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 3.4 (±1.1) ×10^-3 ct s^-1 Mean XRT flux: 3.2 (±0.9) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 3.3 (±1.1) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~1.22×10^-3 [What is this?]
3 [details]	07h 50m 25.15s117.60478°	-51° 39′ 32.9″-51.65913°	6.0′′	Good	7.3′	4.2 ks
Mean XRT rate: 3.3 (±1.2) ×10^-3 ct s^-1 Peak XRT rate: 3.3 (±1.2) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 2.6 (±0.9) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 2.6 (±0.9) ×10^-3 ct s^-1 Mean XRT flux: 1.7 (±0.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.7 (±0.6) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~3.52×10^-3 [What is this?]
4 [details]	07h 49m 12.29s117.30120°	-51° 32′ 20.7″-51.53908°	6.0′′	Good	7.2′	4.4 ks
Mean XRT rate: 1.9 (±1.0) ×10^-3 ct s^-1 Peak XRT rate: 1.9 (±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: 3.3 (±1.8) ×10^-4 ct s^-1 Peak XRT rate converted to PSPC: 3.3 (±1.8) ×10^-4 ct s^-1 Mean XRT flux: 2.3 (±1.2) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 2.3 (±1.2) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~7.34×10^-3 [What is this?]
5 [details]	07h 50m 47.06s117.69610°	-51° 34′ 37.7″-51.57714°	5.6′′	Good	7.8′	4.0 ks
Mean XRT rate: 2.5 (±1.1) ×10^-3 ct s^-1 Peak XRT rate: 2.5 (±1.1) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 1.9 (±0.8) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 1.9 (±0.8) ×10^-3 ct s^-1 Mean XRT flux: 1.3 (±0.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.3 (±0.6) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~5.85×10^-3 [What is this?]
6 [details]	07h 49m 23.06s117.34608°	-51° 22′ 47.8″-51.37994°	5.6′′	Good	12.1′	3.0 ks	A SIMBAD object matches this source's position: (Show) TYC 8146-1827-1, 0.8′′ away
Mean XRT rate: 2.5 (±1.4) ×10^-3 ct s^-1 Peak XRT rate: 2.5 (±1.4) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (PSPC count-rate) Products: Light curve \| Spectrum \| Expected serendipitous sources: ~1.45×10^-2 [What is this?]

Image

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FITS image.

Exposure map

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FITS exposure map.