GRB 130407A: Swift observation summary

Mission:	MAXI
GRB RA:	248.100°
GRB Dec:	+10.510°
GRB Err:	20.0 arcmin
T0:	2013-04-07 23:36:50 UT
Galactic:	26.35° +35.60°
Galactic N_H:	4.88× 10²⁰ cm^-2
Galactic E(B-V):	NED unavailable

Sun distance:	126.04°
Sun angle:	8.59 [hr] (West of Sun)
Moon distance:	100.23°
Visibility of this field.

About tiled field analysis.

So far 3 fields have been scheduled for observations. Data are available and processed for 4 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.

20261 — 1.1 ks of cleaned data taken between 2013-04-08 15:17:11 and 2013-04-08 17:25:07
20262 — 1.1 ks of cleaned data taken between 2013-04-08 15:28:03 and 2013-04-08 17:17:13
20263 — 1.1 ks of cleaned data taken between 2013-04-08 15:38:55 and 2013-04-08 17:00:05
20264 — 1.1 ks of cleaned data taken between 2013-04-08 15:49:41 and 2013-04-08 17:08:59

Find an upper limit.

Sources found so far

So far 5 sources have been found in the XRT data. 3 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from MAXI pos	Exposure	Notes
1 [details]	16h 31m 46.45s247.94354°	+10° 45′ 33.7″10.75935°	5.6′′	Good	17.6′	1.1 ks	Matches known X-ray source: 1RXS J163145.5+104545 (from ROSAT/RASSFSC), 18″ away. Matches SIMBAD source: NVSS J163146+104536, 3.4″ away.
Mean XRT rate: 1.4 (+0.5, -0.4) ×10^-2 ct s^-1 Peak XRT rate: 1.4 (+0.5, -0.4) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.05 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 3.38 (+1.23, -0.99) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 3.38 (+1.23, -0.99) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum Expected serendipitous sources: ~0.3 [What is this?]
2 [details]	16h 31m 20.94s247.83725°	+10° 31′ 34.0″10.52610°	2.5′′	Good	15.5′	1.1 ks	Matches known X-ray source: 1RXS J163119.5+103111 (from ROSAT/RASSFSC), 32.2″ away. Matches SIMBAD source: NAME OT J163120.9+103134, 2.1″ away.
Mean XRT rate: 5.2 (±0.8) ×10^-2 ct s^-1 Peak XRT rate: 6.3 (±1.2) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.09 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 3.1 (±0.5) ×10^-12 erg cm^-1s^-1 Peak XRT flux: 3.7 (±0.7) ×10^-12 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position Expected serendipitous sources: ~0.04 [What is this?]
3 [details]	16h 31m 19.80s247.83250°	+10° 24′ 07.2″10.40201°	5.9′′	Good	17.1′	1.1 ks	Matches known X-ray source: 1RXS J163120.6+102359 (from ROSAT/RASSFSC), 15.4″ away.
Mean XRT rate: 1.6 (+0.5, -0.4) ×10^-2 ct s^-1 Peak XRT rate: 1.6 (+0.5, -0.4) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.06 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 7.7 (+2.6, -2.1) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 7.7 (+2.6, -2.1) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position Expected serendipitous sources: ~0.3 [What is this?]
4 [details]	16h 32m 41.64s248.17349°	+10° 28′ 39.7″10.47769°	4.4′′	Good	4.7′	2.2 ks
Mean XRT rate: 9.6 (+3.0, -2.5) ×10^-3 ct s^-1 Peak XRT rate: 9.6 (+3.0, -2.5) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 2.7 (+0.9, -0.7) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 2.7 (+0.9, -0.7) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum Expected serendipitous sources: ~0.6 [What is this?]
5 [details]	16h 32m 56.28s248.23450°	+10° 36′ 08.1″10.60224°	5.7′′	Good	9.7′	2.2 ks
Mean XRT rate: 4.5 (+2.2, -1.7) ×10^-3 ct s^-1 Peak XRT rate: 4.5 (+2.2, -1.7) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (XRT equiv count-rate) Mean XRT flux: 3.9 (+1.9, -1.4) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 3.9 (+1.9, -1.4) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum Expected serendipitous sources: ~0.5 [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.

Image

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FITS image.

Exposure map

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FITS exposure map.