Meteor and space object research at


Daniel Kastinen

Johan Kero, Gabriel Borderes Motta, Pulmu Pietikäinen

Credit: Me :D

Credit: Me :D

Solar Terrestrial and Atmospheric Research

Meteors and space objects

Meteors and space objects

  • Meteors, meteoroids, dust
  • Space debris
  • Asteroids and comets
  • Solar system dynamics
  • Mesosphere and Lower Thermosphere

Meteors and space objects

  • Meteors, meteoroids, dust
  • Space debris
  • Asteroids and comets
  • Solar system dynamics
  • Mesosphere and Lower Thermosphere

Meteors and space objects

  • Meteors, meteoroids, dust
  • Space debris
  • Asteroids and comets
  • Solar system dynamics
  • Mesosphere and Lower Thermosphere

Meteors and space objects

  • Meteors, meteoroids, dust
  • Space debris
  • Asteroids and comets
  • Solar system dynamics
  • Mesosphere and Lower Thermosphere

Credit: Nathan Myhrvold

Meteors and space objects

  • Meteors, meteoroids, dust
  • Space debris
  • Asteroids and comets
  • Solar system dynamics
  • Mesosphere and Lower Thermosphere

Meteors and space objects

  • Meteors, meteoroids, dust
  • Space debris
  • Asteroids and comets
  • Solar system dynamics
  • Mesosphere and Lower Thermosphere

Research goals/questions

A=Applied | B=Basic

  • Meteors, meteoroids, and dust
  • Asteroids & comets
  • Space debris

Research goals/questions

A=Applied | B=Basic

  • Meteors, meteoroids, and dust
    • (B)The extraterrestrial mass input into Earth's atmosphere
    • (B)The phenomenological model of a meteor
    • (A/B)Meteoroid and dust streams in the solar system
    • (A/B)Meteoroid orbit distribution at Earth
  • Asteroids & comets
  • Space debris

Research goals/questions

A=Applied | B=Basic

  • Meteors, meteoroids, and dust
  • Asteroids & comets
    • (A/B)Dust generation models
    • (A/B)Temporarily Earth captured near-Earth objects: minimoons
    • (A/B)Hazardous object population
    • (B)Asteroid, comet, and meteoroid properties
  • Space debris

Research goals/questions

A=Applied | B=Basic

  • Meteors, meteoroids, and dust
  • Asteroids & comets
  • Space debris
    • (A/B)Accurate model of the space debris environment
    • (A/B)The interaction between Earth's atmosphere and space debris
    • (A)Fragmentation modelling

My work: connecting the big picture

Credit: NASA.Gov - Perseids, 2004.

Credit: NASA.Gov - Perseids, 2004.

Current work

Meteors & meteoroids

Quick summary from

    Kastinen, D., Kero, J., 2020
  • Probabilistic analysis of ambiguities in radar echo direction of arrival from meteors
    • Kastinen, D., Kero, J., Kozlovsky, A., Lester, M., 2021
  • Resolving the ambiguous direction of arrival of weak meteor radar trail echoes
    • Kastinen, D., Kero, J., 2022a
  • Radar analysis algorithm for determining meteor head echo parameter probability distributions
    • Kastinen, D., Kero, J., 2022b
  • High-altitude meteors detected by the interferometric MU radar
    • Kastinen, D., Kero, J., 2017
  • A Monte Carlo-type simulation toolbox for Solar System small body dynamics: Application to the October Draconids

Radars

Radars

Applied a new analysis on

Shigaraki Middle and Upper Atmosphere (MU) radar, Japan

Results

Credit: www.meteorshowers.org

  • 2011 More visual (>1 mm)
  • Unexpected outburst:
    2012 More radar (<1 mm)
  • Predicted outburst 2018
    (was later observed)

    Ongoing steps:

  • Re-analyse all 120,000 MU radar meteor events
  • Apply on more radar-systems (PANSY, EISCAT 3D, ...)
  • Complete and publish software-packages

Thank you for your attention!

Bonus

Kosmos-1408 destruction:

Russian anti-satellite weapon

Credit: AstroDyn on YouTube

Bonus

Photo: Lars-Göran Vanhainen

Bonus

Kastinen, D., Vierinen J., Grydeland T., Kero J., 2023