210322A: Swift observation summary

Mission:	IceCube
Neutrino RA:	85.507°
Neutrino Dec:	-44.722°
Neutrino Err:	20.0 arcmin
T0:	2021-03-22 02:34:09 UT
Galactic:	250.92° -30.63°
Galactic N_H:	3.40× 10²⁰ cm^-2

Sun distance:	86.18°
Sun angle:	5.60 [hr] (East of Sun)
Moon distance:	70.92°
Visibility of this field.
First slew:	2021-03-22 04:55:39 UT
First observation:	2021-03-22 04:52:35 UT
First analysis:	2023-03-22 11:44:46 UT

About tiled field analysis.

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

14201 — 997 s of cleaned data taken between 2021-03-22 04:55:35 and 2021-03-22 05:13:55
14202 — 1.0 ks of cleaned data taken between 2021-03-22 05:13:58 and 2021-03-22 05:31:03
14203 — 972 s of cleaned data taken between 2021-03-22 05:31:05 and 2021-03-22 06:45:32
14204 — 1.0 ks of cleaned data taken between 2021-03-22 06:45:37 and 2021-03-22 07:02:40

Details of afterglow candidates

1 sources were found which matches the afterglow criteria.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Rank³	Exposure	Notes	Vizier
4 [details]	05h 42m 57.10s85.73792°	-44° 45′ 07.9″-44.75220°	5.6′′ ^*	Good	2 (O)	10.0′	1.0 ks	Matches known X-ray source: 1RXS J054257.9-444452 (from ROSAT/RASSFSC), 23.2682826255648″ away.
Mean XRT rate: 2.0 (+0.7, -0.6) ×10^-2 ct s^-1 Peak XRT rate: 2.0 (+0.7, -0.6) ×10^-2 ct s^-1 -3.20 σ above the catalogued flux from ROSAT/RASSFSC. RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.0311 (+0.0107, -0.0088) ct s^-1 Peak XRT rate converted to PSPC: 0.0311 (+0.0107, -0.0088) ×10^-2 ct s^-1 Mean XRT flux: 5.1 (+1.7, -1.4) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 5.1 (+1.7, -1.4) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position

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.

Find an upper limit.

Sources found so far

So far 4 sources have been found in the XRT data. 2 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err₉₀¹	Detection Flag²	Rank³	Dist from IceCube pos	Exposure	Notes
1 [details]	05h 42m 17.48s85.57285°	-44° 17′ 48.3″-44.29674°	9.0′′ ^*	Reasonable	3 (U)	25.7′	1.0 ks
Mean XRT rate: 7 (+4, -3) ×10^-3 ct s^-1 Peak XRT rate: 7 (+4, -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: 8 (+5, -3) ×10^-3 ct s^-1 Peak XRT rate converted to PSPC: 8 (+5, -3) ×10^-3 ct s^-1 Mean XRT flux: 3.1 (+1.7, -1.3) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 3.1 (+1.7, -1.3) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position
2 [details]	05h 41m 39.53s85.41471°	-44° 55′ 34.0″-44.92611°	8.1′′	Good	3 (U)	12.9′	972 s	This source may be affected by optical loading Matches SIMBAD source: HD 38172, 2.6″ away.
Mean XRT rate: 10 (+5, -4) ×10^-3 ct s^-1 Peak XRT rate: 10 (+5, -4) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.01 ct s^-1 (PSPC count-rate) Products: Light curve
3 [details]	05h 42m 02.42s85.51009°	-44° 16′ 35.9″-44.27665°	12.0′′	Poor	3 (U)	26.7′	1.0 ks
Mean XRT rate: 6.2 (+3.8, -2.7) ×10^-3 ct s^-1 Peak XRT rate: 6.2 (+3.8, -2.7) ×10^-3 ct s^-1 RASS PSPC 3-σ upper limit: 0.02 ct s^-1 (PSPC count-rate) Products: Light curve \| Spectrum
4 [details]	05h 42m 57.10s85.73792°	-44° 45′ 07.9″-44.75220°	5.6′′ ^*	Good	2 (O)	10.0′	1.0 ks	Matches known X-ray source: 1RXS J054257.9-444452 (from ROSAT/RASSFSC), 23.2682826255648″ away.
Mean XRT rate: 2.0 (+0.7, -0.6) ×10^-2 ct s^-1 Peak XRT rate: 2.0 (+0.7, -0.6) ×10^-2 ct s^-1 -3.20 σ above the catalogued flux from ROSAT/RASSFSC. RASS PSPC 3-σ upper limit: 0.0×10⁰ ct s^-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 0.0311 (+0.0107, -0.0088) ct s^-1 Peak XRT rate converted to PSPC: 0.0311 (+0.0107, -0.0088) ×10^-2 ct s^-1 Mean XRT flux: 5.1 (+1.7, -1.4) ×10^-13 erg cm^-1s^-1 Peak XRT flux: 5.1 (+1.7, -1.4) ×10^-13 erg cm^-1s^-1 Products: Light curve \| Spectrum \| Enhanced position

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.