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Tue, 29 Nov 2022
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Fireballs


Fireball 5

New research reveals space debris, invisible meteors and near-Earth asteroids

In a new thesis from the Swedish Institute of Space Physics and Umeå University, unique methods for the analysis of radar data and simulations of meteoroids in the solar system are presented. The methods have been applied to confirm the existence of rare high-altitude meteors as well as to measure space debris from the Kosmos-1408 satellite. On November 25, Daniel Kastinen defends his doctoral thesis.
Daniel Kastinen
© Martin Eriksson / Daniel Kastinen (illustration
Daniel Kastinen's thesis presents results that pave the way for future research and cross-disciplinary studies on meteors as well as on space debris and near-Earth asteroids.
"My primary goal has been to carefully analyze radar measurements of meteors and space debris and evaluate the precision of the measurements. This is to improve further analysis and use the results together with the new dynamical simulations. The work paves the way for future research and allows cross-disciplinary studies on meteors as well as on space debris and near-Earth asteroids", says Daniel Kastinen.

Every day, 10-200 tons of material from space, consisting of dust- sized particles and larger pieces of material - meteoroids, fall into the Earth's atmosphere. These particles come from parent bodies such as comets and asteroids and thus date back to the time when the solar system was formed. When a meteoroid hits the Earth's atmosphere and burns up in the form of a meteor, the material is dispersed in the atmosphere. Most of these meteors are invisible to the eye but can be detected by radar.

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Asteroid hit Canada on November 19, mere hours after discovery

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Asteroid hit Canada hours after discovery

Astronomers spotted an asteroid just hours before it impacted with Earth this morning (November 19, 2022), near Lake Erie. This is not the first time this year astronomers have discovered a rock from space just hours before it hit Earth. But this time, it impacted over a populated area, crossing the skies of Toronto, Canada. So we have video and witnesses who said they saw, heard and felt the impact.


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Meteor fireball over New Zealand on November 18

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We received 20 reports about a fireball seen over Auckland, Northland and Waikato on Friday, November 18th 2022 around 15:23 UT.

For this event, we received 3 videos.


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Meteor fireball over Alberta, British Columbia and 4 American states on November 17

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We received 21 reports about a fireball seen over Alberta, British Columbia, ID, MT, OR and WA on Thursday, November 17th 2022 around 13:23 UT.

For this event, we received 3 videos and one photo.


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Meteor fireball over Indiana and other states on November 14

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We received 10 reports about a fireball seen over IL, IN, MI and WI on Monday, November 14th 2022 around 01:16 UT.

For this event, we received one video.


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Meteor fireball over Oregon and adjacent states on November 13

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We received 26 reports about a fireball seen over ID, NV, OR and WA on Sunday, November 13th 2022 around 11:35 UT.

For this event, we received 4 videos and one photo.


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Meteor fireball over Maryland and other states on November 13

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We received 27 reports about a fireball seen over CT, MA, NH, NY and RI on Sunday, November 13th 2022 around 01:15 UT.

For this event, we received one video and one photo.


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Meteor fireball over Ohio and other states on November 9

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We received 20 reports about a fireball seen over CT, IL, IN, MI, OH, Ontario and PA on Wednesday, November 9th 2022 around 07:03 UT.

For this event, we received one video.


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Meteor fireball over central Spain (Nov. 7)

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This bright bolide is a Southern Taurid spotted over Spain on November 7, at 1:53 local time (equivalent to 0:53 universal time). The event was generated by a rock (a meteoroid) from Comet 2P/Encke that hit the atmosphere at about 110,000 km/h. The fireball overflew the provinces of Avila and Salamanca (Spain). It began at an altitude of about 106 km over Ávila, moved north, and ended at a height of around 62 km over the province of Salamanca.

This bright meteor was recorded in the framework of the SMART project, operated by the Southwestern Europe Meteor Network (SWEMN) from the meteor-observing stations located at La Hita, Huelva, Sevilla, El Guijo, Calar Alto, Sierra Nevada, La Sagra, ESA Casas de Millán, and ESA Cebreros. The event has been analyzed by the principal investigator of the SMART project: Dr. Jose M. Madiedo, from the Institute of Astrophysics of Andalusia (IAA-CSIC).


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Meteor fireball over Italy and other adjacent countries on November 5

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We received 60 reports about a fireball seen over Auvergne-Rhône-Alpes, Škofja Loka, Baden-Württemberg, Bayern, Corse, Emilia-Romagna, Friuli-Venezia Giulia, Grand Est, Koper, Lazio, Liguria, Lombardia, Niederösterreich, Piemonte, Provence-Alpes-Côte d'Azur, Sardegna, Slovenj Gradec, Slovenska Bistrica, Steiermark and To on Saturday, November 5th 2022 around 20:55 UT.