Hier eine erste Veröffentlichung zum beeindruckenden Ereignis:
The 18 May 2024 superbolide over the Iberian Peninsula: USG space sensors and ground-based independent observationsEloy Peña-Asensio, Pau Grèbol-Tomàs, Josep M. Trigo-Rodríguez, Pablo Ramírez-Moreta, Rainer Kresken
Submitted to MNRAS, Preprint 27 May 2024
"On 18 May 2024, a superbolide traversed the western part of the Iberian Peninsula, culminating its flight over the Atlantic Ocean
and generating significant media attention. This event was caused by a weak carbonaceous meteoroid of 93.0±0.8 cm, with a
density of 1613±12 kg m?3, entering the atmosphere at 40.1±0.4 km s?1 with an angle of 10.93±0.02?. The luminous phase
started at 137.88±0.05 km and ended at an altitude of 53.78±0.07 km. The meteoroid’s heliocentric orbit was characterized
by an inclination of 14.42±0.23?, a high eccentricity of 0.950±0.004, a semi-major axis of 2.31±0.13 au, and a notably short
perihelion distance of 0.116±0.003 au. The superbolide was recorded by multiple ground-based stations of the Spanish Meteor
Network (SPMN), the European Space Agency (ESA), and the U.S. Government (USG) space sensors. Our analysis shows
a good agreement with the radiant and velocity data reported by the Center for Near-Earth Object Studies (CNEOS), with a
deviation of 1.6? and -0.4 km s?1, respectively. Due to the absence of observable deceleration, we successfully reconciled satellite
radiometric data with a purely dynamic atmospheric flight model, constraining the meteoroid’s mass and coherently fitting its
velocity profile."