GRB 130828A: Swift observation summary

Mission:	Fermi/LAT
GRB RA:	259.830°
GRB Dec:	+28.000°
GRB Err:	30.0 arcmin
T0:	2013-08-28 07:19:57 UT
Galactic:	50.70° +31.43°
Galactic N_H:	3.11× 10²⁰ cm^-2
Galactic E(B-V):	NED unavailable

Sun distance:	96.61°
Sun angle:	6.86 [hr] (East of Sun)
Moon distance:	130.18°
Visibility of this field.

About tiled field analysis.

So far 6 fields have been scheduled for observations. Data are available and processed for 6 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.

20289 — 2.7 ks of cleaned data taken between 2013-08-29 12:25:30 and 2013-08-29 21:45:16
20290 — 2.7 ks of cleaned data taken between 2013-08-29 12:30:25 and 2013-08-29 20:19:46
20291 — 2.7 ks of cleaned data taken between 2013-08-29 12:35:17 and 2013-08-29 21:47:45
20292 — 2.7 ks of cleaned data taken between 2013-08-29 12:40:09 and 2013-08-29 21:41:15
20293 — 2.0 ks of cleaned data taken between 2013-09-04 05:50:11 and 2013-09-04 07:44:21
20295 — 4.7 ks of cleaned data taken between 2013-09-07 01:17:48 and 2013-09-07 15:57:44

Find an upper limit.

Sources found so far

So far 17 sources have been found in the XRT data. 3 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from LAT pos	Exposure	Notes
1 [details]	17h 18m 55.53s259.73139°	+27° 59′ 45.2″27.99588°	2.4′′ ^*	Good	5.2′	4.8 ks	A SIMBAD object matches this source's position: (Show) SDSS J171855.44+275947.4, 5.0′′ away
Mean XRT rate: 1.19 (±0.17) ×10^-2 ct s^-1 Peak XRT rate: 1.31 (±0.25) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.0202 (±0.0029) ct s^-1 Peak XRT rate converted to PSPC: 0.022 (±0.004) ct s^-1 Mean XRT flux: 3.6 (±0.5) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 4.0 (±0.8) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.5 [What is this?]
2 [details]	17h 18m 19.82s259.58259°	+28° 10′ 51.3″28.18091°	4.8′′	Good	17.0′	6.6 ks
Mean XRT rate: 2.1 (±0.8) ×10^-3 ct s^-1 Peak XRT rate: 2.2 (±1.4) ×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: 4.6 (±1.7) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 5 (±3) ×10^-3 ct s^-1 Mean XRT flux: 4.7 (±1.8) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 5 (±3) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~4.1 [What is this?]
3 [details]	17h 20m 41.49s260.17289°	+27° 58′ 23.2″27.97312°	5.6′′	Good	18.2′	2.3 ks
Mean XRT rate: 4.5 (±1.7) ×10^-3 ct s^-1 Peak XRT rate: 4.5 (±1.7) ×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: ~2.1 [What is this?]
4 [details]	17h 19m 00.72s259.75299°	+28° 10′ 14.7″28.17075°	5.4′′	Good	11.0′	8.4 ks
Mean XRT rate: 2.1 (±0.7) ×10^-3 ct s^-1 Peak XRT rate: 2.3 (±0.9) ×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: 3.4 (±1.1) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 3.6 (±1.4) ×10^-3 ct s^-1 Mean XRT flux: 4.8 (±1.6) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 5.2 (±2.0) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~4.0 [What is this?]
5 [details]	17h 19m 24.12s259.85051°	+28° 01′ 29.9″28.02498°	4.5′′	Good	1.9′	5.9 ks	This source may be affected by optical loading A SIMBAD object matches this source's position: (Show) HD 156987, 4.8′′ away
Mean XRT rate: 2.0 (±0.8) ×10^-3 ct s^-1 Peak XRT rate: 2.4 (±1.6) ×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: ~4.3 [What is this?]
6 [details]	17h 18m 21.51s259.58961°	+28° 19′ 26.4″28.32401°	5.5′′	Good	23.2′	3.7 ks
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: 0.03 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 8 (±4) ×10^-4 ct s^-1 Peak XRT rate converted to PSPC: 8 (±4) ×10^-4 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: ~3.8 [What is this?]
7 [details]	17h 18m 19.99s259.58329°	+28° 04′ 50.1″28.08059°	5.6′′	Good	13.9′	7.4 ks
Mean XRT rate: 1.1 (±0.6) ×10^-3 ct s^-1 Peak XRT rate: 1.1 (±0.6) ×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: 1.5 (±0.8) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 1.5 (±0.8) ×10^-3 ct s^-1 Mean XRT flux: 4.1 (±2.3) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 4.1 (±2.3) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~6.6 [What is this?]
8 [details]	17h 19m 02.40s259.75999°	+28° 06′ 28.4″28.10789°	6.4′′	Good	7.5′	10.4 ks
Mean XRT rate: 9 (±5) ×10^-4 ct s^-1 Peak XRT rate: 9 (±5) ×10^-4 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 1.4 (±0.8) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 1.4 (±0.8) ×10^-3 ct s^-1 Mean XRT flux: 2.7 (±1.6) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 2.7 (±1.6) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~4.9 [What is this?]
9 [details]	17h 19m 03.65s259.76522°	+28° 05′ 03.1″28.08419°	10.6′′	Poor	6.1′	10.3 ks	A SIMBAD object matches this source's position: (Show) LP 332-17, 4.1′′ away
Mean XRT rate: 1.5 (±0.8) ×10^-3 ct s^-1 Peak XRT rate: 1.5 (±0.8) ×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: 1.7 (±0.9) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 1.7 (±0.9) ×10^-3 ct s^-1 Mean XRT flux: 7 (±4) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 7 (±4) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~5.8 [What is this?]
10 [details]	17h 18m 28.01s259.61669°	+28° 02′ 17.8″28.03827°	5.8′′	Good	11.5′	5.2 ks
Mean XRT rate: 2.7 (±1.2) ×10^-3 ct s^-1 Peak XRT rate: 3.9 (±2.5) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (PSPC count-rate) Products: Light curve \| Spectrum \| Expected serendipitous sources: ~3.7 [What is this?]
11 [details]	17h 18m 55.12s259.72965°	+28° 05′ 39.2″28.09422°	5.7′′	Reasonable	7.8′	9.8 ks
Mean XRT rate: 10 (±5) ×10^-4 ct s^-1 Peak XRT rate: 10 (±5) ×10^-4 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 6 (±3) ×10^-4 ct s^-1 Peak XRT rate converted to PSPC: 6 (±3) ×10^-4 ct s^-1 Mean XRT flux: 8 (±4) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 8 (±4) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~5.7 [What is this?]
12 [details]	17h 19m 46.40s259.94333°	+27° 54′ 31.6″27.90878°	5.8′′	Good	8.1′	4.4 ks
Mean XRT rate: 1.6 (±0.8) ×10^-3 ct s^-1 Peak XRT rate: 1.6 (±0.8) ×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: 7 (±4) ×10^-4 ct s^-1 Peak XRT rate converted to PSPC: 7 (±4) ×10^-4 ct s^-1 Mean XRT flux: 1.2 (±0.6) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.2 (±0.6) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~5.6 [What is this?]
13 [details]	17h 18m 50.30s259.70960°	+27° 51′ 57.0″27.86585°	6.4′′	Poor	10.3′	6.2 ks
Mean XRT rate: 2.1 (±0.9) ×10^-3 ct s^-1 Peak XRT rate: 2.1 (±0.9) ×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: ~4.2 [What is this?]
14 [details]	17h 19m 36.62s259.90259°	+28° 00′ 27.2″28.00756°	5.9′′	Good	3.9′	4.1 ks
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: ~3.8 [What is this?]
15 [details]	17h 18m 29.86s259.62443°	+28° 04′ 36.7″28.07686°	5.6′′	Good	11.8′	7.5 ks
Mean XRT rate: 1.0 (±0.6) ×10^-3 ct s^-1 Peak XRT rate: 1.0 (±0.6) ×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: 1.5 (±0.9) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 1.5 (±0.9) ×10^-3 ct s^-1 Mean XRT flux: 3.7 (±2.2) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 3.7 (±2.2) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~6.4 [What is this?]
16 [details]	17h 18m 15.47s259.56447°	+28° 14′ 10.8″28.23633°	7.2′′	Poor	20.0′	3.9 ks
Mean XRT rate: 1.9 (±0.9) ×10^-3 ct s^-1 Peak XRT rate: 1.9 (±0.9) ×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: 2.1 (±1.1) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 2.1 (±1.1) ×10^-3 ct s^-1 Mean XRT flux: 5.2 (±2.6) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 5.2 (±2.6) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~4.8 [What is this?]
17 [details]	17h 19m 29.52s259.87299°	+28° 02′ 30.6″28.04184°	5.4′′	Good	3.4′	5.9 ks
Mean XRT rate: 0.00 (±0.00) ×10^-1 ct s^-1 Peak XRT rate: 0.00 (±0.00) ×10^-1 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (PSPC count-rate) Products: Light curve \| Spectrum

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.