J/ApJ/933/L5ivo://CDS.VizieR/J/ApJ/933/L5doi:10.26093/cds/vizier.19339005CDSArimatsu KoTsumura K.Usui F.Watanabe J.-I.2025-05-21T20:14:27Z2025-03-03T09:07:17ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsolar-system-planetssolar-systemvisible-astronomyWe report the detection of an optical impact flash on Jupiter on 2021 October 15 by a dedicated telescope, Planetary ObservatioN Camera for Optical Transient Surveys, for the first time. Our temporally resolved three-band observations of the flash allowed investigations of its optical energy without the need for approximations on the impact brightness temperature. The kinetic energy of the impactor was equivalent to approximately two megatons of TNT, an order of magnitude greater than that of previously detected flashes on Jupiter and comparable with the Tunguska impact on Earth in 1908. This detection indicates that Tunguska-like impact events on Jupiter occur approximately once per year, two to three orders of magnitude more frequently than terrestrial impacts. The observed flash displayed a single-temperature blackbody spectrum with an effective temperature of approximately 8300K without clear temporal variation, possibly representing common radiative features of terrestrial Tunguska-class superbolides.2022ApJ...933L...5Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/933/L5CatalogResearchIsServedByTAP VizieR generic servicerelated-toII/179 : Southern Spectrophotometric Standards. I + II (Hamuy+ 1992,94)J/A+A/554/A74 : Jupiter's zonal winds in 2011 (Barrado-Izagirre+, 2013)J/ApJ/814/65 : Jupiter HST light curves (Karalidi+, 2015)J/A+A/604/A17 : Jupiter decametric radio emissions over 26yrs (Marques+, 2017)J/A+A/607/A72 : Absolute reflectivity of Jupiter and Saturn (Mendikoa+ 2017)J/ApJS/263/15 : Cassini Visual & IR obs. of Saturn & Jupiter (Coulter+, 2022J/A+A/672/A33 : Jupiter's Interior from Juno EOS (Howard+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/933/L5https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/933/L5http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/933/L5https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/933/L5https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/933/L5http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/933/L5GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/933/L5/fig305sObserved 0.5-sec bin fluxes of the impact flash at the PONCOTS V, G, and CH4 bands as a function of timerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTime[-9.75/9.75] The time from the peak of the flashstime.intervalfloatVflux[-2.78/26.8] The V band 0.5s bin flux1e-14W.m**-2.nm**-1phot.flux;em.opt.VdoubleGhflux[-1.57/14.3] The Gh band 0.5s bin flux1e-14W.m**-2.nm**-1phot.flux.density;em.opt.RdoubleCH4flux[-0.6/4.75] The CH4 band 0.5s bin flux1e-14W.m**-2.nm**-1phot.flux.density;em.opt.Idoublee_Vflux[1.79] The one sigma error in the V band 0.5s bin flux1e-14W.m**-2.nm**-1stat.error;phot.flux;em.opt.Vdoublee_Ghflux[1.76] The one sigma error in the Gh band 0.5s bin flux1e-14W.m**-2.nm**-1stat.error;phot.flux.density;em.opt.Rdoublee_CH4flux[0.224] The one sigma error in the CH4 band 0.5s bin flux1e-14W.m**-2.nm**-1stat.error;phot.flux.density;em.opt.IdoubleJ/ApJ/933/L5/fig3vObserved fluxes of the impact flash at the PONCOTS V band (505-650nm) as a function of timerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTime[-9.98/9.98] The time from the peak of the flashstime.intervalfloatVflux[-10.2/41.1] The V band flux1e-14W.m**-2.nm**-1phot.flux;em.opt.VdoubleJ/ApJ/933/L5/fig3ghObserved fluxes of the impact flash at the PONCOTS Gh band (680-840nm) as a function of timerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTime[-9.98/9.98] The time from the peak of the flashstime.intervalfloatGhflux[-19.8/28.3] The Gh band flux1e-14W.m**-2.nm**-1phot.flux.density;em.opt.RdoubleJ/ApJ/933/L5/fig3ch4Observed fluxes of the impact flash at the PONCOTS CH4 band (880-900nm) as a function of timerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTime[-9.98/9.93] The time from the peak of the flashstime.intervalfloatCH4flux[-1.94/5.72] The CH4 band flux1e-14W.m**-2.nm**-1phot.flux.density;em.opt.Idouble