IceCube realtime alert:

Report generated (UTC):	2023-09-15 12:36:37
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 J1051.6+3253	162.91	32.89	NGC 3424	Search Simbad	1.31	LCR FAVA DX
4FGL J1102.9+3014	165.74	30.24	B2 1100+30B	Search Simbad	2.28	LCR FAVA DX
4FGL J1039.2+3258	159.81	32.97		Search Simbad	3.58	LCR FAVA DX
4FGL J1058.6+2817	164.65	28.29	GB6 J1058+2817	Search Simbad	3.61	LCR FAVA DX
4FGL J1106.0+2813	166.50	28.23	MG2 J110606+2812	Search Simbad	4.28	LCR FAVA DX
4FGL J1049.8+2741	162.46	27.68		Search Simbad	4.31	LCR FAVA DX
4FGL J1112.5+3448	168.15	34.80	TXS 1109+350	Search Simbad	4.67	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

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 J1054.6+3320	163.66	33.34	1.51	PowerLaw	62.17	7.849e-08	N/A	Spectrum plot FITS file npy file
4FGL J1102.9+3014	165.74	30.24	2.28	PowerLaw	35.25	7.428e-08	7.925e-11	Spectrum plot FITS file npy file
PS J1044.2+2949	161.07	29.82	3.11	PowerLaw	60.14	7.795e-08	N/A	Spectrum plot FITS file npy file
4FGL J1039.2+3258	159.81	32.97	3.58	PowerLaw	96.55	7.885e-08	1.978e-10	Spectrum plot FITS file npy file
4FGL J1058.6+2817	164.65	28.29	3.61	PowerLaw	42.58	6.443e-08	4.725e-10	Spectrum plot FITS file npy file
4FGL J1106.0+2813	166.50	28.23	4.28	LogParabola	5.65	3.550e-08	7.829e-10	Spectrum plot FITS file npy file
4FGL J1049.8+2741	162.46	27.68	4.31	PowerLaw	34.76	6.918e-08	1.218e-10	Spectrum plot FITS file npy file
4FGL J1112.5+3448	168.15	34.80	4.67	LogParabola	59.49	1.056e-07	6.981e-10	Spectrum plot FITS file npy file
PS J1111.1+2812	167.79	28.20	4.99	PowerLaw	35.30	3.158e-08	N/A	Spectrum plot FITS file npy file
PS J1052.0+3649	163.02	36.82	5.04	PowerLaw	39.44	6.522e-08	N/A	Spectrum plot FITS file npy file
PS J1118.7+3256	169.69	32.94	5.07	PowerLaw	30.80	2.358e-08	N/A	Spectrum plot FITS file npy file
PS J1039.4+2728	159.87	27.47	5.55	PowerLaw	22.42	1.081e-08	N/A	Spectrum plot FITS file npy file
PS J1120.2+3001	170.05	30.03	5.63	PowerLaw	24.71	3.400e-08	N/A	Spectrum plot FITS file npy file
PS J1117.6+2845	169.42	28.75	5.72	PowerLaw	20.92	1.785e-08	N/A	Spectrum plot FITS file npy file
PS J1044.5+3710	161.15	37.17	5.78	PowerLaw	10.10	7.860e-09	N/A	Spectrum plot FITS file npy file
4FGL J1028.3+3108	157.08	31.14	5.80	PowerLaw	9.57	2.154e-08	1.271e-10	Spectrum plot FITS file npy file
PS J1034.2+2809	158.57	28.16	5.85	PowerLaw	26.18	1.858e-08	N/A	Spectrum plot FITS file npy file
PS J1031.4+3501	157.87	35.03	5.91	PowerLaw	32.73	1.498e-08	N/A	Spectrum plot FITS file npy file
PS J1046.6+3731	161.66	37.52	5.96	PowerLaw	3.88	1.113e-09	N/A	Spectrum plot FITS file npy file
PS J1123.6+2953	170.91	29.88	6.38	PowerLaw	16.53	2.077e-09	N/A	Spectrum plot FITS file npy file
4FGL J1104.4+3812	166.12	38.21	6.65	LogParabola	2378.38	2.939e-07	3.419e-08	Spectrum plot FITS file npy file
4FGL J1033.7+3708	158.43	37.14	6.93	PowerLaw	100.17	9.083e-08	4.175e-10	Spectrum plot FITS file npy file
PS J1023.5+3340	155.89	33.68	6.93	PowerLaw	9.66	2.397e-09	N/A	Spectrum plot FITS file npy file
PS J1127.0+3351	171.77	33.85	6.97	PowerLaw	21.85	2.142e-08	N/A	Spectrum plot FITS file npy file
4FGL J1023.8+3002	155.96	30.05	6.98	PowerLaw	13.64	1.545e-08	1.364e-10	Spectrum plot FITS file npy file
4FGL J1101.5+3904	165.38	39.07	7.35	PowerLaw	7.12	5.770e-08	1.674e-10	Spectrum plot FITS file npy file
4FGL J1129.5+3034	172.38	30.58	7.42	PowerLaw	27.66	6.942e-08	1.746e-10	Spectrum plot FITS file npy file
4FGL J1023.2+2859	155.82	28.98	7.47	PowerLaw	39.64	1.219e-07	1.288e-10	Spectrum plot FITS file npy file
PS J1019.7+3258	154.94	32.97	7.59	PowerLaw	5.03	3.208e-08	N/A	Spectrum plot FITS file npy file
PS J1105.6+2432	166.42	24.55	7.63	PowerLaw	56.27	1.156e-07	N/A	Spectrum plot FITS file npy file
4FGL J1117.6+2550	169.41	25.85	7.72	PowerLaw	28.47	2.456e-08	2.864e-10	Spectrum plot FITS file npy file
PS J1043.7+3915	160.93	39.25	7.79	PowerLaw	24.73	2.453e-08	N/A	Spectrum plot FITS file npy file
4FGL J1127.8+3618	171.96	36.31	8.09	PowerLaw	64.44	1.309e-07	9.778e-10	Spectrum plot FITS file npy file
4FGL J1043.2+2408	160.81	24.15	8.13	PowerLaw	61.56	2.552e-07	7.090e-10	Spectrum plot FITS file npy file
4FGL J1018.4+3540	154.61	35.68	8.58	PowerLaw	63.61	1.326e-07	3.957e-10	Spectrum plot FITS file npy file
4FGL J1125.2+2557	171.31	25.95	8.79	LogParabola	142.51	1.654e-07	1.430e-10	Spectrum plot FITS file npy file
PS J1029.3+3907	157.33	39.13	9.01	PowerLaw	21.09	1.438e-08	N/A	Spectrum plot FITS file npy file
PS J1123.0+3853	170.76	38.89	9.04	PowerLaw	29.40	4.568e-08	N/A	Spectrum plot FITS file npy file
4FGL J1131.0+3815	172.75	38.26	9.72	LogParabola	255.69	2.123e-07	1.341e-09	Spectrum plot FITS file npy file
4FGL J1023.1+3949	155.79	39.82	10.31	LogParabola	27.96	8.743e-08	1.260e-09	Spectrum plot FITS file npy file
4FGL J1012.7+2439	153.20	24.66	11.78	LogParabola	55.68	4.335e-06	2.104e-09	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]	29.9 deg
Moon separation [deg]	31.5 deg