GRB 100724B: Swift observation summary

Mission:	Fermi-GBM
GRB RA:	119.500°
GRB Dec:	+77.100°
GRB Err:	10 arcmin
T0:	2010-07-25 00:42:01 UT
Galactic:	137.24° +30.09°
Galactic N_H:	3.40 x 10²⁰
Galactic E(B-V):	0.035 mag

Sun distance:	57.21°
Sun angle:	0.25 [hr] (West of Sun)
Moon distance:	125.51°
Visibility of this field.

About tiled field analysis.

So far 2 fields have been scheduled for observations. Data are available and processed for 2 of these. The list gives the exposure time used in source detection. If any individual sources were selected for follow-up observations, the source detection is not repeated for the follow up observations and the table below is not updated.

20144 — 1.4 ks of cleaned data taken between 2010-08-02 18:27:56 and 2010-08-02 18:51:56
20145 — 1.8 ks of cleaned data taken between 2010-08-02 19:57:17 and 2010-08-02 20:27:07

Find an upper limit.

Sources found so far

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

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from GBM pos	Exposure	Notes
1 [details]	07h 59m 29.03s119.87095°	+77° 05′ 33.0″77.09251°	3.1′′ ^*	Good	5.0′	1.7 ks	A catalogued X-ray source matches this source's position: (Show) '1SXPS J075930.6+770533' is 0.7′′ away, err (3-σ)=8.2′′ (Swift-XRT/1SXPS)
Mean XRT rate: 8.0 (±2.6) ×10^-3 ct s^-1 Peak XRT rate: 8.0 (±2.6) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (PSPC count-rate) Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.5 [What is this?]
2 [details]	07h 59m 58.98s119.99575°	+77° 05′ 28.7″77.09131°	5.2′′ ^*	Good	6.7′	1.7 ks	A catalogued X-ray source matches this source's position: (Show) '1SXPS J080001.0+770526' is 0.9′′ away, err (3-σ)=11.2′′ (Swift-XRT/1SXPS)
Mean XRT rate: 6.2 (±2.3) ×10^-3 ct s^-1 Peak XRT rate: 6.2 (±2.3) ×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: 0.013 (±0.005) ct s^-1 Peak XRT rate converted to PSPC: 0.013 (±0.005) ct s^-1 Mean XRT flux: 1.6 (±0.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.6 (±0.6) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.7 [What is this?]
3 [details]	08h 01m 55.86s120.48273°	+77° 06′ 56.0″77.11556°	4.1′′ ^*	Good	13.2′	2.5 ks	A catalogued X-ray source matches this source's position: (Show) '1SXPS J080155.9+770658' is 8.1′′ away, err (3-σ)=9.6′′ (Swift-XRT/1SXPS)
Mean XRT rate: 3.2 (±1.3) ×10^-3 ct s^-1 Peak XRT rate: 3.2 (±1.3) ×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: 2.2 (±0.9) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 2.2 (±0.9) ×10^-3 ct s^-1 Mean XRT flux: 1.7 (±0.7) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.7 (±0.7) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.2 [What is this?]
4 [details]	07h 57m 37.55s119.40647°	+77° 15′ 59.5″77.26653°	2.3′′ ^*	Good	10.1′	1.5 ks	2 catalogued X-ray sources match this source's position: (Show) '1SXPS J075738.8+771559' is 0.1′′ away, err (3-σ)=6.5′′ (Swift-XRT/1SXPS) '1RXS J075738.6+771555' is 4.7′′ away, err (3-σ)=40.1′′ (ROSAT/RASSBSC) A SIMBAD object matches this source's position: (Show) RX J0757.6+7715, 4.6′′ away
Mean XRT rate: 2.6 (±0.4) ×10^-2 ct s^-1 Peak XRT rate: 3.0 (±0.7) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.10 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.041 (±0.007) ct s^-1 Peak XRT rate converted to PSPC: 0.047 (±0.011) ct s^-1 Mean XRT flux: 6.2 (±1.1) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 7.2 (±1.6) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.07 [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.