IceCube realtime alert:

Report generated (UTC):2024-09-10 13:18:27
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 J0449.1+112172.2811.36PKS 0446+11Search Simbad0.40LCR FAVA DX
4FGL J0458.0+115274.5111.87NVSS J045804+115142Search Simbad1.84LCR FAVA DX
4FGL J0502.5+134075.6313.67PKS 0459+135Search Simbad3.65LCR FAVA DX
4FGL J0440.4+144070.1214.68TXS 0437+145Search Simbad4.11LCR FAVA DX
4FGL J0441.5+150570.3915.091RXS J044127.8+150455Search Simbad4.30LCR FAVA DX
4FGL J0445.7+153571.4415.60Search Simbad4.35LCR FAVA DX
4FGL J0444.5+071971.147.32TXS 0442+071Search Simbad4.38LCR FAVA DX
4FGL J0434.7+092268.699.38TXS 0431+092Search Simbad4.43LCR FAVA DX
4FGL J0509.4+101277.3510.20PKS 0506+101Search Simbad4.74LCR FAVA DX
4FGL J0457.0+064674.256.784C +06.21Search Simbad4.89LCR 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 J0458.0+115174.5211.86NVSS J045804+115142Search Simbad1.85LCR FAVA DX
3FHL J0441.6+150470.4115.08SHBL J044127.4+150456Search Simbad4.28LCR FAVA DX
3FHL J0434.7+092168.689.36TXS 0431+092Search Simbad4.45LCR 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 J0449.1+112172.2811.360.40LogParabola366.414.034e-072.228e-09Spectrum plot FITS file npy file
PS J0441.9+151570.4815.264.40PowerLaw11.809.729e-10N/ASpectrum plot FITS file npy file
PS J0453.1+164373.3016.735.34PowerLaw11.139.232e-09N/ASpectrum plot FITS file npy file
PS J0441.6+045770.414.956.85PowerLaw12.721.424e-09N/ASpectrum plot FITS file npy file
4FGL J0509.4+054277.365.707.35LogParabola41.465.629e-088.156e-09Spectrum plot FITS file npy file
PS J0501.2+183175.3218.527.54PowerLaw10.658.711e-09N/ASpectrum plot FITS file npy file
4FGL J0521.2+163780.3116.639.05PowerLaw16.055.884e-082.441e-10Spectrum plot FITS file npy file
4FGL J0530.9+133282.7413.5410.03LogParabola2.433.346e-071.760e-09Spectrum plot FITS file npy file
4FGL J0521.7+211280.4421.2112.29LogParabola3.527.055e-071.182e-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]95.1 deg
Moon separation [deg]164.0 deg