IceCube realtime alert:

Report generated (UTC):	2023-05-12 01:11:37
Current time (UTC):

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Back to all alerts

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Alert properties

Event type:
RA (J2000) [deg]:
Dec (J2000) [deg]:
Error radius [deg]:
Trigger time:
Run ID:
Event ID:
GCN Notice:

Skymaps

	All-sky equatorial
	All-sky Galactic

Nearby 4FGL sources

Fermi sources are shown within a 5 deg radius from the alert best-fit position. Sources contained within the error circle of the alert are highlighted in color. For sources with a known association, "Search Simbad" returns an identifier query using the association name listed (note that in many cases the association name is not resolved by Simbad). If no association is listed, return a radial search 0.3 deg around the Fermi source position.

Name	RA [deg]	Dec [deg]	Association	Search	Distance [deg]	MWL
4FGL J0215.9+0300	33.99	3.00	GALEXASC J021608.28+030014.2	Search Simbad	1.90	LCR FAVA DX
4FGL J0216.8+0510	34.22	5.17	AT 2017eph	Search Simbad	1.97	LCR FAVA DX
4FGL J0217.8+0144	34.46	1.73	PKS 0215+015	Search Simbad	3.14	LCR FAVA DX
4FGL J0219.5+0724	34.89	7.41	GB6 J0219+0727	Search Simbad	3.99	LCR FAVA DX
4FGL J0201.1+0036	30.28	0.60	MS 0158.5+0019	Search Simbad	4.23	LCR FAVA DX
4FGL J0158.8+0101	29.70	1.02	GB6 J0158+0101	Search Simbad	4.23	LCR FAVA DX
4FGL J0224.2+0700	36.06	7.01	PKS 0221+067	Search Simbad	4.52	LCR FAVA DX
4FGL J0217.2+0837	34.32	8.62	ZS 0214+083	Search Simbad	4.78	LCR FAVA DX
4FGL J0227.3+0201	36.83	2.02	RX J0227.2+0201	Search Simbad	4.84	LCR FAVA DX
4FGL J0151.0+0539	27.77	5.65	PMN J0151+0540	Search Simbad	4.93	LCR FAVA DX
4FGL J0152.6+0147	28.16	1.79	PMN J0152+0146	Search Simbad	4.96	LCR FAVA DX
4FGL J0208.5-0046	32.13	-0.78	PKS 0205-010	Search Simbad	4.99	LCR FAVA DX
4FGL J0202.4+0849	30.62	8.83	TXS 0159+085	Search Simbad	5.00	LCR FAVA DX

Nearby 3FHL sources

Fermi sources are shown within a 5 deg radius from the alert best-fit position. Sources contained within the error circle of the alert are highlighted in color. For sources with a known association, "Search Simbad" returns an identifier query using the association name listed (note that in many cases the association name is not resolved by Simbad). If no association is listed, return a radial search 0.3 deg around the Fermi source position.

Name	RA [deg]	Dec [deg]	Association	Search	Distance [deg]	MWL
3FHL J0217.8+0143	34.46	1.73	PKS 0215+015	Search Simbad	3.15	LCR FAVA DX
3FHL J0217.1+0836	34.28	8.61	ZS 0214+083	Search Simbad	4.75	LCR FAVA DX
3FHL J0227.3+0200	36.83	2.00	RX J0227.2+0201	Search Simbad	4.84	LCR FAVA DX
3FHL J0152.6+0147	28.17	1.79	PMN J0152+0146	Search Simbad	4.95	LCR FAVA DX
3FHL J0151.0+0539	27.75	5.65	PMN J0151+0540	Search Simbad	4.95	LCR FAVA DX

Fermi-LAT prompt analysis

Fermi-LAT analysis of the alert over two different timescales of one month and the full mission.

One month results

Results per source

Fermi sources with a TS > 9 are included in this list. Links are provided for the spectral fits results as a plot, and in FITS and npy format.

Name	RA [deg]	Dec [deg]	Distance [deg]	Spectrum type	TS	Flux above 100 MeV [ph cm^-2 s^-1]	4FGL-DR3 flux above 100 MeV [ph cm^-2 s^-1]	Result files
PS J0217.2+0312	34.32	3.21	2.07	PowerLaw	15.56	4.485e-09	N/A	Spectrum plot FITS file npy file
4FGL J0217.8+0144	34.46	1.73	3.14	LogParabola	78.49	1.364e-07	3.305e-09	Spectrum plot FITS file npy file
4FGL J0217.2+0837	34.32	8.62	4.78	PowerLaw	15.29	4.186e-08	1.798e-09	Spectrum plot FITS file npy file
PS J0218.2-0045	34.56	-0.76	5.37	PowerLaw	15.63	1.589e-09	N/A	Spectrum plot FITS file npy file
PS J0232.2+0207	38.06	2.13	5.92	PowerLaw	14.98	8.204e-10	N/A	Spectrum plot FITS file npy file
PS J0233.1+0725	38.29	7.43	6.60	PowerLaw	15.84	7.481e-08	N/A	Spectrum plot FITS file npy file
4FGL J0211.2+1051	32.81	10.86	6.67	LogParabola	35.50	9.399e-09	6.164e-09	Spectrum plot FITS file npy file
PS J0200.8+1042	30.20	10.71	6.90	PowerLaw	17.89	2.998e-09	N/A	Spectrum plot FITS file npy file
PS J0157.9-0206	29.50	-2.10	6.98	PowerLaw	9.13	4.482e-09	N/A	Spectrum plot FITS file npy file
PS J0159.4-0246	29.86	-2.77	7.45	PowerLaw	9.83	1.608e-09	N/A	Spectrum plot FITS file npy file
PS J0234.4+0837	38.62	8.62	7.52	PowerLaw	14.33	6.939e-10	N/A	Spectrum plot FITS file npy file
PS J0141.9+0755	25.48	7.93	7.92	PowerLaw	9.26	1.031e-08	N/A	Spectrum plot FITS file npy file
PS J0147.8+1101	26.95	11.03	8.77	PowerLaw	25.32	8.016e-08	N/A	Spectrum plot FITS file npy file
4FGL J0158.4+1230	29.62	12.50	8.78	PowerLaw	4.14	1.842e-07	2.124e-11	Spectrum plot FITS file npy file
PS J0143.4+1051	25.87	10.86	9.35	PowerLaw	3.94	3.379e-08	N/A	Spectrum plot FITS file npy file
PS J0140.7+1044	25.19	10.74	9.76	PowerLaw	3.59	3.436e-08	N/A	Spectrum plot FITS file npy file

Fermi-LAT GeV photons

GeV photons observed from the direction of the alert over the last month

Interactive skymap

The interactive window shows a background of the Fermi (color) skymap and markers for nearby sources in three HE catalogs: 4FGL, 3FHL, and 2WHSP. Other catalogs (2RXS and BZCat) plus a dynamic HiPS search in Simbad can be enabled from the layer control of the left. An additional Simbad search shows a selection of objects (detected in radio, X-rays, gamma-rays and/or galaxies) near the best fit position. The background sky can be changed to optical (Mellinger survey) from the radio buttons below the image.

Visibility

Visibility plots (elevation vs time) for four ground-based instruments over the next hours for the alert. Dark (light) bands indicate civil (astronomical) twilights for each site. Moon and sun elevations are also shown.

Swift visibility

Visibility conditions for Swift at the time of the report generation based on the distance of the alert position to the Sun and Moon. Red or green colors indicate if the position is observable (>23 deg away from the Moon and >47 away from the Sun).

Sun separation [deg]	20.7 deg
Moon separation [deg]	78.6 deg