GRB 141229A: Swift observation summary

Mission:	Fermi/GBM
GRB RA:	72.181°
GRB Dec:	-19.108°
GRB Err:	30.0 arcmin
T0:	2014-12-29 11:48:49 UT
Galactic:	217.96° -35.33°
Galactic N_H:	3.39× 10²⁰ cm^-2
Galactic E(B-V):	0.05087294

Sun distance:	130.57°
Sun angle:	10.25 [hr](East of Sun)
Moon distance:	61.31°
Visibility of this field.
First slew:	2014-12-29 14:50:23 UT
First observation:	2014-12-29 14:50:21 UT
First analysis:	2014-12-29 21:45:11 UT

About tiled field analysis.

So far 8 fields have been scheduled for observations. Data are available and processed for 7 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.

20456 — 912 s of cleaned data taken between 2014-12-29 14:50:11 and 2014-12-29 18:31:16
20457 — 955 s of cleaned data taken between 2014-12-29 14:56:40 and 2014-12-29 18:35:43
20458 — 955 s of cleaned data taken between 2014-12-29 15:03:12 and 2014-12-29 18:26:46
20459 — 937 s of cleaned data taken between 2014-12-29 15:09:38 and 2014-12-29 18:22:05
20460 — 942 s of cleaned data taken between 2014-12-29 15:15:32 and 2014-12-29 18:17:19
20461 — 925 s of cleaned data taken between 2014-12-29 15:21:23 and 2014-12-29 18:12:10
20462 — 937 s of cleaned data taken between 2014-12-29 15:26:56 and 2014-12-29 18:07:21

Probable afterglow details

A source was found which matches the afterglow criteria.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Dist from Fermi/GBM pos	Exposure	Notes	Vizier
2 [details]	04h 49m 42.81s72.42839°	-19° 14′ 04.9″-19.23469°	4.4′′ ^*	Good	15.9′	1.4 ks	The source is fading.
Mean XRT rate: 2.8 (±0.7) ×10^-2 ct s^-1 Peak XRT rate: 3.6 (±0.9) ×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: 0.032 (±0.008) ct s^-1 Peak XRT rate converted to PSPC: 0.041 (±0.010) ct s^-1 Mean XRT flux: 9.7 (±2.3) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.2 (±0.3) ×10^-12 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.2 [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.

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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 Fermi/GBM pos	Exposure	Notes
1 [details]	04h 49m 03.85s72.26606°	-18° 47′ 19.6″-18.78878°	4.9′′	Good	19.8′	865 s	A catalogued X-ray source matches this source's position: (Show) '1RXS J044903.5-184737' is 18.1′′ away, err (3-σ)=40.1′′ (ROSAT/RASSFSC)
Mean XRT rate: 1.3 (±0.5) ×10^-2 ct s^-1 Peak XRT rate: 1.3 (±0.5) ×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: 0.015 (±0.006) ct s^-1 Peak XRT rate converted to PSPC: 0.015 (±0.006) ct s^-1 Mean XRT flux: 1.1 (±0.4) ×10^-12 erg cm^-1s^-1 Peak XRT flux: 1.1 (±0.4) ×10^-12 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Expected serendipitous sources: ~0.7 [What is this?]
2 [details]	04h 49m 42.81s72.42839°	-19° 14′ 04.9″-19.23469°	4.4′′ ^*	Good	15.9′	1.4 ks	The source is fading.
Mean XRT rate: 2.8 (±0.7) ×10^-2 ct s^-1 Peak XRT rate: 3.6 (±0.9) ×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: 0.032 (±0.008) ct s^-1 Peak XRT rate converted to PSPC: 0.041 (±0.010) ct s^-1 Mean XRT flux: 9.7 (±2.3) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.2 (±0.3) ×10^-12 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position \| Expected serendipitous sources: ~0.2 [What is this?]

Image

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FITS image.

Exposure map

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FITS exposure map.