Croatian Meteor Network Group Data reduction and analysis Students: Filip Trojko Lovro Vukadinović...

Croatian Meteor Network Group

Data reduction and analysis

Students: Filip Trojko

Lovro Vukadinović

Sandi Šegota

Leonardo Pierobon

Team leaders: Filip Novoselnik Denis Vida

Višnjan school of astronomy 2011

Goals

• automatization of the station • visual IMO method observing• February Eta Draconids• meteor stream analysis• time synchronisation software• learning the data reduction procedure• making video tutorial


Meteoroids, meteors, meteorites...


Croatian Meteor Network

• first tests – 2006.; active work since 2007.• 35 cameras at the moment• data analysis and processing (known stream

analysis, discovering new streams and potential meteorites...)


CMN data reduction

• object detection (MTP)• filtering (MTPFilter)• astrometry• photometry• orbits (UFOOrbit)


IMO visual method• 14 perseids, 2 sporadic • night of maximum (2 hours)


IMO report

Automatization of the stations

• Python 2.7.2.• automatic data reduction pipeline:

- deleting unnecessary images

- MTP

- uploading to the server• completely automatic station


February Eta Draconids

• new meteor stream – CAMS (NASA)• checking CMN data in the period of activity (3rd

– 4th February)• the parent body: unknown long-period comet

(potentially dangerous!)• detected 1 potential FED (waiting for the

confirmation)


Hb /km He /km vg /km/s λ /° e i /° ω /° Ω /°

105.1 94.6 35.67 314.929 0.970 55.39 194.42 314.923

105.1 96.3 35.16 314.925 0.972 54.94 193.73 314.990

102.7 97.0 35.90 315.115 0.970 55.54 194.41 315.111

103.9 97.1 35.30 315.135 0.971 54.74 194.17 315.132

103.1 95.7 35.87 315.175 0.972 55.37 193.73 315.175

101.4 93.4 35.62 315.229 0.971 55.90 194.09 315.228

CMN: 100,78 97,23 35,2 314,77 0,98 53,79 187,9 314,77

CAMS:


Ground map

Kappa Cygnids (KCG)

• radiant in Cygnus• ZHR: 3• active in the period from 3rd to 25th August• velocity: 25 km/s


Alpha Capricornids (CAP)

• radiant in Capricornus• ZHR: 2-3• maximum activity 29th to 30th of July• velocity: 25 km/s; slow, but very bright


CMN Jenniskens et. al., 2010Višnjan school of astronomy 2011

The Capricornids’ orbits (2007. - 2009.)

64 orbits

Poynting – Robertson effect

• radiation pressure• energy ~ frequency• Doppler effect• deceleration of the small

particles• spiral falling of the small

particles on the Sun


Time synchronisation

• Python 2.7.2.• extracting the station name from its code• copying the *.hmm files• calculating average time difference• time difference filtering• extrapolation


The video tutorial

• Camtasia 7• data reduction procedure explained• for new members


Future plans

• time synchronisation (2008 – 2009)• continuing the data analysis• education of new members



Acknowledgements

Thank you for your attention!

Questions?

Filip Novoselnik: [email protected]

Denis Vida:[email protected]

Filip Trojko: [email protected] Vukadinović:[email protected] Šegota:[email protected] Pierobon:[email protected]


Croatian Meteor Network Group Data reduction and analysis Students: Filip Trojko Lovro Vukadinović...

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