GRB 241217A: Swift observation summary

This is a confirmed GRB (GRB 241217A), the afterglow is source 1 -- please see the GRB results at https://www.swift.ac.uk/xrt_products/00018993 for updated analysis

Mission:	Einstein Probe/WXT
Einstein Probe RA:	84.167°
Einstein Probe Dec:	-25.281°
Einstein Probe Err:	3.07416 arcsec
T0:	2024-12-17 16:58:04 UT
Galactic:	229.08° -26.91°
Galactic N_H:	1.64× 10²⁰ cm^-2

Sun distance:	131.33°
Sun angle:	11.9 [hr](East of Sun)
Moon distance:	60.81°
Visibility of this field.
First slew:	2024-12-17 17:40:31 UT
First observation:	2024-12-17 17:32:37 UT
First analysis:	2024-12-17 20:48:32 UT

Data analysed so far:

ObsID: 00018993001 with 1.4 ks exposure.
ObsID: 00018993002 with 1.5 ks exposure.
ObsID: 00018993003 with 0.8 ks exposure.

About tiled field analysis.

So far 1 fields have been scheduled for observations. Data are available and processed for 1 of these.

18993 — 3.7 ks of cleaned data taken between 2024-12-17 17:33:07 and 2024-12-18 07:33:23

Find an upper limit.

Sources found so far

So far 7 sources have been found in the XRT data. 1 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Rank³	Dist from Einstein Probe/WXT pos	Exposure	Notes
1 [details]	05h 36m 36.37s84.15154°	-25° 17′ 49.5″-25.29707°	4.3′′ ^*	Good	3 (U)	1.3′	9.1 ks	The source is fading with 4.6-σ significance. The source is 4.5-σ above the RASS limit.
Mean XRT rate: 0.113 (±0.013) ct s^-1 Peak XRT rate: 2.2 (±0.5) ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.148 (±0.018) ct s^-1 Peak XRT rate converted to PSPC: 2.9 (±0.6) ct s^-1 Mean XRT flux: 3.8 (±0.5) ×10^-12 erg cm^-1s^-1 Peak XRT flux: 7.4 (±1.6) ×10^-11 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position
2 [details]	05h 36m 35.74s84.14890°	-25° 16′ 36.1″-25.27670°	8.2′′	Poor	3 (U)	1.0′	9.7 ks	The source is fading with 4.3-σ significance. The source is 4.1-σ above the RASS limit. This source may be affected by optical loading
Mean XRT rate: 0.63 (±0.13) ct s^-1 Peak XRT rate: 0.89 (±0.21) ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.75 (±0.16) ct s^-1 Peak XRT rate converted to PSPC: 1.06 (±0.25) ct s^-1 Mean XRT flux: 2.5 (±0.5) ×10^-11 erg cm^-1s^-1 Peak XRT flux: 3.6 (±0.8) ×10^-11 erg cm^-1s^-1 Products: Light curve \| Spectrum
3 [details]	05h 36m 29.86s84.12441°	-25° 13′ 52.6″-25.23127°	5.1′′ ^*	Poor	3 (U)	3.8′	9.7 ks	Matches SIMBAD source: PMN J0536-2513, 7.5″ away.
Mean XRT rate: 3.55 (+1.09, -0.86) ×10^-3 ct s^-1 Peak XRT rate: 4.1 (+1.7, -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: 3.37 (+1.03, -0.81) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 3.9 (+1.6, -1.3) ×10^-3 ct s^-1 Mean XRT flux: 1.05 (+0.32, -0.25) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 1.2 (+0.5, -0.4) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position
4 [details]	05h 36m 39.48s84.16448°	-25° 17′ 35.6″-25.29323°	5.9′′	Poor	3 (U)	0.7′	9.7 ks	The source is fading with 5.5-σ significance. The source is 5.4-σ above the RASS limit. This source may be affected by optical loading
Mean XRT rate: 2.09 (±0.12) ct s^-1 Peak XRT rate: 21 (±4) ct s^-1 RASS PSPC 3-σ upper limit: 0.04 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 2.03 (±0.12) ct s^-1 Peak XRT rate converted to PSPC: 20 (±4) ct s^-1 Mean XRT flux: 1.12 (±0.06) ×10^-10 erg cm^-1s^-1 Peak XRT flux: 1.10 (±0.20) ×10^-9 erg cm^-1s^-1 Products: Light curve \| Spectrum
5 [details]	05h 37m 16.99s84.32081°	-25° 24′ 01.2″-25.40034°	6.1′′	Poor	3 (U)	11.0′	6.8 ks	The source is fading with 3.0-σ significance. The source is 3.3-σ above the RASS limit.
Mean XRT rate: 8.7 (±2.7) ×10^-3 ct s^-1 Peak XRT rate: 8.7 (±2.7) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 6.9×10^-9 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 49587.6 (+1.52 × 10⁴, -15215.5) ×10⁴ ct s^-1 Peak XRT rate converted to PSPC: 49587.6 (+1.52 × 10⁴, -15215.5) ×10⁴ ct s^-1 Mean XRT flux: 1.4 (±0.4) ×10^-14 erg cm^-1s^-1 Peak XRT flux: 1.4 (±0.4) ×10^-14 erg cm^-1s^-1 Products: Light curve \| Spectrum
6 [details]	05h 37m 23.29s84.34704°	-25° 17′ 44.4″-25.29567°	6.4′′	Poor	3 (U)	9.8′	9.7 ks
Mean XRT rate: 8.8 (+2.9, -2.4) ×10^-3 ct s^-1 Peak XRT rate: 3.0 (+1.4, -1.2) ×10^-2 ct s^-1 RASS PSPC 3-σ upper limit: 0.24 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 1.2 (+0.4, -0.3) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 3.9 (+1.8, -1.5) ×10^-3 ct s^-1 Mean XRT flux: 6.1 (+2.0, -1.7) ×10^-12 erg cm^-1s^-1 Peak XRT flux: 2.1 (+0.9, -0.8) ×10^-11 erg cm^-1s^-1 Products: Light curve \| Spectrum
7 [details]	05h 36m 35.71s84.14881°	-25° 17′ 20.9″-25.28913°	6.4′′	Reasonable	3 (U)	1.1′	9.1 ks	The source is fading with 4.5-σ significance. The source is 4.1-σ above the RASS limit. This source may be affected by optical loading
Mean XRT rate: 8.6 (±0.7) ×10^-2 ct s^-1 Peak XRT rate: 0.32 (±0.07) ct s^-1 RASS PSPC 3-σ upper limit: 0.03 ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.081 (±0.007) ct s^-1 Peak XRT rate converted to PSPC: 0.30 (±0.07) ct s^-1 Mean XRT flux: 4.5 (±0.4) ×10^-12 erg cm^-1s^-1 Peak XRT flux: 1.6 (±0.4) ×10^-11 erg cm^-1s^-1 Products: Light curve \| Spectrum

¹ Radius, 90% confidence.
² Indicates how likely the source is to be real. See the LSXPS documentation.
³ T=Transient Source, O=Outbursting known source, U=Uncatalogued X-ray source, K=Known X-ray source.
^* 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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Exposure map

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FITS exposure map.