IceCube realtime alert:

Report generated (UTC):2023-05-12 16:49:45
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.

NameRA [deg]Dec [deg]AssociationSearchDistance [deg]MWL
4FGL J2227.9+0036336.980.62PMN J2227+0037Search Simbad2.01LCR FAVA DX
4FGL J2226.6+0210336.672.172MASS J22263636+0210373Search Simbad2.02LCR FAVA DX
4FGL J2226.8+0051336.710.86PKS B2224+006Search Simbad2.12LCR FAVA DX
4FGL J2223.3+0102335.851.05SDSS J222329.56+010226.6Search Simbad2.88LCR FAVA DX
4FGL J2244.9-0007341.24-0.12NVSS J224448-000616Search Simbad3.20LCR FAVA DX
4FGL J2224.5+0353336.133.891RXS J222426.5+035445Search Simbad3.30LCR FAVA DX
4FGL J2247.4-0001341.87-0.03PKS 2244-002Search Simbad3.68LCR FAVA DX
4FGL J2249.9+0452342.484.87Search Simbad4.95LCR 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.

NameRA [deg]Dec [deg]AssociationSearchDistance [deg]MWL
3FHL J2227.8+0036336.970.61PMN J2227+0037Search Simbad2.02LCR FAVA DX
3FHL J2247.5-0000341.89-0.01PKS 2244-002Search Simbad3.69LCR 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.

NameRA [deg]Dec [deg]Distance [deg]Spectrum typeTSFlux above 100 MeV [ph cm^-2 s^-1]4FGL-DR3 flux above 100 MeV [ph cm^-2 s^-1]Result files
PS J2234.6+0058338.670.970.78PowerLaw12.054.798e-09N/ASpectrum plot FITS file npy file
PS J2230.5+0750337.647.846.17PowerLaw19.138.332e-09N/ASpectrum plot FITS file npy file
PS J2247.5-0359341.88-3.996.59PowerLaw16.103.567e-09N/ASpectrum plot FITS file npy file
PS J2224.1-0426336.03-4.436.71PowerLaw15.022.750e-08N/ASpectrum plot FITS file npy file
4FGL J2212.8+0647333.216.797.39PowerLaw26.214.564e-085.203e-10Spectrum plot FITS file npy file
PS J2210.6-0500332.66-5.009.01PowerLaw13.341.417e-08N/ASpectrum plot FITS file npy file
4FGL J2232.6+1143338.1511.739.99LogParabola52.881.334e-064.129e-08Spectrum 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]70.1 deg
Moon separation [deg]32.1 deg