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| Fireball 2011.02.18_18.23.42 ± 1 U.T. (c) Ferruccio Zanotti/Italian Meteor and TLE Network 2011 All Rights Reserved-Illegal to Copy |
Fireball 2011.02.18_18.23.42 ± 1 U.T.
(c) Ferruccio Zanotti/Italian Meteor and TLE Network
2011 All Rights Reserved
Illegal to Copy
Fireball 2011.02.18_18.23.42 ± 1 U.T.
From the station Ferrara TLE Tracker (provisional azimuth: 33 v 16 °)
Full track (J2000)
RA: 212,480
Decl i: 53,430
AR f: 227,357
F decl: 45,525
Transit Duration: 4.24
Duration wake: 0.00
No fragmentation
Flares Number: 1
Max apparent magnitude: -5 ± 0.5
Zenithal magnitude: -9.5 ± 0.5
Meteor shower: SPO
Note: height fireball initial point 15 ° FH 4 °
Spectrum to first order: NO
Color camera: Yes
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| Fireball 2011.02.18_18.23.42 ± 1 U.T. (c) Ferruccio Zanotti/Italian Meteor and TLE Network 2011 All Rights Reserved Illegal to Copy |
http://meteore.forumattivo.com/t1651-fireball-20110218_182342-1-ut#7051
Thank you Ferruccio Zanotti and the Italian Meteor and TLE Network for your report!
3 comments:
Nice work ! Several witnesses in south of France on 18 february 2011 18:45. axe North-Est to South-West from cities of: Perpignan, Le Boulou, Carcassonne, Saint-Laurent-de-la-Salanque, Vinça (helicoptere pilot). The meteor was GREEN with white short tray on back, yellow light on front (like fire) and fragmentation above Spain. I'm surprised by the difference of time (18:23 in Italy / 18h45 in France). Pascal Guillaumes (ovni66.com)
I have a question ?
How do you know where the fireball is going to land ?
Olivia, Thank you for your question. To determine the fall location we use triangulation. Here are some links for you:
http://en.wikipedia.org/wiki/Triangulation
http://ares.jsc.nasa.gov/education/activities/expmetmys/Lesson2.pdf
http://education.down2earth.eu/files/olivia/falling%20meteorites%20teacher.pdf
There are other factors beyond triangulation such as velocity, atmospheric conditions, detonation, dark flight, and etc.
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