IceCube realtime alert:

Report generated (UTC):	2023-05-12 11:33:34
Current time (UTC):

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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 J1747.6+0324	266.91	3.41		Search Simbad	1.17	LCR FAVA DX
4FGL J1756.3+0236	269.09	2.61		Search Simbad	1.82	LCR FAVA DX
4FGL J1738.0+0236	264.51	2.61		Search Simbad	3.67	LCR FAVA DX
4FGL J1805.6+0615	271.42	6.26	PSR J1805+0615	Search Simbad	4.16	LCR FAVA DX
4FGL J1736.6+0628	264.17	6.47	MG1 J173624+0632	Search Simbad	4.47	LCR FAVA DX
4FGL J1811.3+0340	272.83	3.68	NVSS J181118+034113	Search Simbad	4.91	LCR FAVA DX

Nearby 3FHL sources

Name	RA [deg]	Dec [deg]	Association	Search	Distance [deg]	MWL
3FHL J1811.3+0341	272.83	3.69	NVSS J181118+034113	Search Simbad	4.92	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 J1805.8+0138	271.46	1.64	4.26	PowerLaw	13.31	1.573e-08	N/A	Spectrum plot FITS file npy file
4FGL J1759.0-0107	269.77	-1.12	5.45	PowerLaw	8.24	9.226e-08	2.311e-10	Spectrum plot FITS file npy file
PS J1744.0+1017	266.01	10.29	6.56	PowerLaw	11.38	2.129e-08	N/A	Spectrum plot FITS file npy file
PS J1749.0-0256	267.27	-2.94	6.97	PowerLaw	10.86	2.177e-08	N/A	Spectrum plot FITS file npy file
PS J1813.8-0103	273.46	-1.06	7.51	PowerLaw	12.59	3.283e-08	N/A	Spectrum plot FITS file npy file
4FGL J1824.5+0107	276.12	1.13	8.69	PowerLaw	4.58	2.044e-07	8.267e-10	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.

Optical survey (Mellinger) Fermi color

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]	135.2 deg
Moon separation [deg]	54.2 deg