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Leonid MAC

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1998 1999 2000 2001 2002
Destination: 1998 mission 1999 mission 2000 campaign 2001 mission 2002 mission

1999 Leonid MAC

The following arguments decided the chosen flight path:

  • Leonid "storm" component (only visible over Europe/Africa):
    • main peak between 01:00 - 03:30 UT November 18, 1999, possible at around 02:08 UT (this is 21:08 EST, Nov 17)
    • duration: 1-3 hours (sharp maximum)
    • peak rate of order 100 to 10,000 /hr
    • rich in faint meteors
    • peculiarities: there may be a background component to this peak that is longer in duration
    • observing strategy: 7+ hour flight, covering period 3.5 hours before 2 UT until 3.5 hours after 2 UT on November 18. Best viewing in dark and clear skies.
  • Leonid "filament" component (visible all over the world):
    • peak about 0.3 days earlier on Nov 17.
    • duration: up to 3 days. Rates will be elevated in nights of Nov. 16/17, Nov. 17/18 and Nov. 18/19.
    • peak rate down from last year ~ 100/hr
    • rich in bright meteors
    • peculiarities: time of the peak is highly uncertain. May not return at all
    • observing strategy: 3-night mission. Spotter cameras to not miss bright meteors and persistent trains

Earth from perspective of shower

Earth as seen from the perspective of Leonid shower at 1:48h UT, 1999 Nov. 18

Flightpath worldwide

The route of the aircraft during Leonid MAC 1999. On Nov. 17/18, we will follow a westward trajectory for a longer night.
detail gps path of airplane on peak night

Mission flight path: detail of airplane route on peak night. Dots indicate the position of the aircraft at the peak of the 1999 storm.

Related ground-based activities will occur in Israel, the south of France, the south of Spain and the south of Portugal.

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