IceCube realtime alert:

Report generated (UTC):2023-05-12 12:03:03
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 J1724.2+4005261.0540.09S4 1722+40Search Simbad1.79LCR FAVA DX
4FGL J1716.8+4310259.2043.17NGC 6341Search Simbad2.28LCR FAVA DX
4FGL J1738.2+4000264.5640.01Search Simbad2.82LCR FAVA DX
4FGL J1734.3+3858263.6038.98B2 1732+38ASearch Simbad3.18LCR FAVA DX
4FGL J1709.7+4318257.4343.31B3 1708+433Search Simbad3.48LCR FAVA DX
4FGL J1720.2+3824260.0738.41SDSS J172010.33+382556.1Search Simbad3.61LCR FAVA DX
4FGL J1727.4+4530261.8545.51S4 1726+45Search Simbad3.70LCR FAVA DX
4FGL J1745.6+3950266.4239.84B2 1743+39CSearch Simbad4.08LCR FAVA DX
4FGL J1749.0+4321267.2643.36B3 1747+433Search Simbad4.38LCR FAVA DX
4FGL J1730.8+3715262.7037.26GB6 J1730+3714Search Simbad4.61LCR 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 J1734.4+3858263.6138.98B2 1732+38ASearch Simbad3.19LCR FAVA DX
3FHL J1709.5+4318257.3943.30B3 1708+433Search Simbad3.50LCR FAVA DX
3FHL J1745.6+3950266.4139.84B2 1743+39CSearch Simbad4.08LCR FAVA DX
3FHL J1748.9+4321267.2443.37B3 1747+433Search Simbad4.37LCR FAVA DX
3FHL J1730.8+3715262.7137.26GB6 J1730+3714Search Simbad4.62LCR 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
4FGL J1734.3+3858263.6038.983.18LogParabola89.171.101e-072.945e-09Spectrum plot FITS file npy file
4FGL J1727.4+4530261.8545.513.70LogParabola50.813.448e-081.898e-09Spectrum plot FITS file npy file
PS J1739.5+4606264.8946.104.87PowerLaw13.151.012e-08N/ASpectrum plot FITS file npy file
PS J1700.1+4303255.0343.065.07PowerLaw15.151.998e-09N/ASpectrum plot FITS file npy file
4FGL J1747.9+4704266.9947.076.47PowerLaw7.841.960e-081.811e-10Spectrum plot FITS file npy file
4FGL J1653.8+3945253.4739.766.55LogParabola277.367.543e-081.008e-08Spectrum plot FITS file npy file
PS J1736.4+3506264.1235.106.97PowerLaw12.861.407e-09N/ASpectrum plot FITS file npy file
PS J1739.2+3512264.8135.217.04PowerLaw14.461.991e-10N/ASpectrum plot FITS file npy file
PS J1759.5+3644269.8936.738.12PowerLaw11.962.475e-10N/ASpectrum plot FITS file npy file
4FGL J1642.9+3948250.7339.828.52PowerLaw9.931.347e-072.463e-09Spectrum plot FITS file npy file
PS J1807.9+4644272.0046.758.87PowerLaw12.452.605e-09N/ASpectrum 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]112.7 deg
Moon separation [deg]81.5 deg