IceCube realtime alert:

Report generated (UTC):2023-05-12 19:10:02
Current time (UTC):

Back to all alerts

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 J0521.6+010380.411.05NVSS J052140+010257Search Simbad2.05LCR FAVA DX
4FGL J0506.9+032376.733.392MASS J05065014+0323587Search Simbad2.72LCR FAVA DX
4FGL J0505.6+041576.404.27MG1 J050533+0415Search Simbad3.31LCR FAVA DX
4FGL J0509.4+054277.365.70TXS 0506+056Search Simbad3.51LCR FAVA DX
4FGL J0505.3+045976.345.00PKS 0502+049Search Simbad3.74LCR FAVA DX
4FGL J0525.8-005281.47-0.87PMN J0525-0051Search Simbad4.25LCR FAVA DX
4FGL J0515.5-012578.89-1.42NVSS J051536-012427Search Simbad4.29LCR FAVA DX
4FGL J0529.1-010182.28-1.03PMN J0529-0058Search Simbad4.82LCR 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 J0521.6+010480.411.07NVSS J052140+010257Search Simbad2.04LCR FAVA DX
3FHL J0506.9+032376.733.39Search Simbad2.73LCR FAVA DX
3FHL J0505.5+041576.394.26MG1 J050533+0415Search Simbad3.32LCR FAVA DX
3FHL J0509.4+054277.365.71TXS 0506+056Search Simbad3.51LCR FAVA DX
3FHL J0505.4+045876.364.98PKS 0502+049Search Simbad3.71LCR FAVA DX
3FHL J0526.0-005081.50-0.85NVSS J052554-005140Search Simbad4.25LCR 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 J0508.0+040677.014.112.70PowerLaw11.971.077e-08N/ASpectrum plot FITS file npy file
4FGL J0509.4+054277.365.703.51LogParabola28.791.184e-078.156e-09Spectrum plot FITS file npy file
4FGL J0505.3+045976.345.003.74LogParabola13.798.138e-095.552e-09Spectrum plot FITS file npy file
PS J0505.2+065276.326.885.08PowerLaw14.919.413e-10N/ASpectrum plot FITS file npy file
4FGL J0532.6+073283.177.556.02LogParabola41.352.024e-075.143e-09Spectrum plot FITS file npy file
4FGL J0529.9-022482.48-2.406.08PowerLaw11.046.204e-081.961e-10Spectrum plot FITS file npy file
PS J0458.0+064574.526.766.24PowerLaw15.574.336e-08N/ASpectrum plot FITS file npy file
4FGL J0501.2-015875.30-1.976.32LogParabola145.441.791e-075.184e-09Spectrum plot FITS file npy file
PS J0503.3+090375.849.067.16PowerLaw9.382.194e-08N/ASpectrum plot FITS file npy file
PS J0524.2+101781.0710.307.64PowerLaw10.746.919e-09N/ASpectrum plot FITS file npy file
PS J0450.0-030072.50-3.019.04PowerLaw16.651.154e-08N/ASpectrum plot FITS file npy file
PS J0447.5+081571.888.279.24PowerLaw14.611.621e-08N/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]34.0 deg
Moon separation [deg]121.4 deg