The European video MeteOr Network Database (EDMOND)

Thanks to a broad international cooperation of video meteor observers from several European countries, we managed to create a multi-national network EDMONd (European viDeo Meteor Observation Network). The European video MeteOr Network Database (EDMOND) has been established only recently, together with the founding of the EDMONd network in 2012. In the year 2013, observers affiliated to the IMO VMN (International Meteor Organization Video Meteor Network) have started to share their data, and the data of EDMONd and IMO VMN have been merged. The IMO VMN has been created in 1999 and at present consists of observers from Germany, Slovenia, Italy, Hungary, Finland, Portugal, Netherlands, United Kingdom, Spain, Poland, Belgium, United States, Australia, Greece, and Russia. The database itself is understood to be multiplatform, therefore combines outputs from systems with different parameters as well as from systems with different recording and evaluation methodology (UFO Capture, MetRec, CMN).

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Narrow Field Camera (NFC)

In 2014 a new type of narrow field, highly sensitive camera system was introduced in CEMeNt (Central European MEteor NeTwork). The system is called NFC (Narrow Field Camera). The heart of each station is a sensitive CCTV camera Watec 902 H2 Ultimate (1/2″ chip Sony ICX429ALL, sensitivity of 0.0001 lux) with fast lens Meopta Meostigmat 1/50 – 52.5 mm (focal length F=50 mm and fixed aperture f/1.0). Signal conversion of the analog output from the Watec camera to digital input to the PC is realized via USB A/D converter AverMedia DVD EZMaker or Dazzle DVC 101. Recording and evaluation of individual meteors is maintained by the software UFO Tools (UFO Capture V2, UFO Analyzer and UFO Orbit). The system is protected against weathering by a heated case Marathon MH 805/12 with IP-66. The field of view of the NFC system is 6.8° horizontally and 5.4° vertically, which is roughly 100 times smaller than conventional systems working in the BRAMON or the EDMONd networks.

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Meteor Spectra

The first spectroscopic observations in the CEMeNt network were regularly performed in July and August 2013 on an experimental setup from Kroměříž. The experimental setup was used with a highly sensitive CCD video camera Watec 902 H2 Ultimate with 1/2″ CCD chip Sony ICX429ALL with an effective resolution of 720 × 576 px. FOV and resolution of the CCD chip allowed the use of holographic diffraction grating with density of 300 lines/mm, resolution of the experimental spectrograph was 56.8 Å/px. The first fixed spectrographic system was put into operation at the Valašské Meziříčí Observatory in July 2014, it was in operation until 2016. The spectrograph was used with a highly sensitive CCD video camera VE 6047 EF/OSD. The camera was equiped with 1/3″ CCD chip Sony ICX673AKA with an effective resolution of 720 × 576 px, video was recorded in a standard PAL B signal at resolution 700 TVL. Field of view was 60° × 48°, system used to operate fast Tokina lens (f/0.98) with a variable focal length (3-8 mm). FOV and resolution of the CCD chip allowed the use of holographic diffraction grating with density of 500 lines/mm, resolution of the first fixed spectrograph was 32.8 Å/px.

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Acknowledgement

We would like to thank to all station owners, operators and observers for long term and precise work enabling EDMONd network independent operation. Also we would like to thank to all institutions involved for still growing support of network activities. Projects KOSOAP (Cooperating Network of Astronomic Observational Projects, in Czech: Kooperující síť v oblasti astronomických odborně-pozorovatelských programů) and RPKS (Evolvement of the Cross Border Network for Scientific Work and Education, in Czech: Rozvoj přeshraniční kooperující sítě pro odbornou práci a vzdělávání) realized by Valašské Meziříčí Observatory (CZ) and Kysuce Observatory (SK) in cooperation with Society for Interplanetary Matter (SMPH) were co-funded by European Union (Cross-border Cooperation programme Slovak Republic – Czech Republic 2007-2013).
The spectroscopic research has been funded by the Grant Agency of the Czech Republic (reg. no. 14-12010S) by the Programme of Regional Cooperation between the Regions and the Institutes of the Czech Academy of Sciences in 2017, (reg. no. R200401521 and reg. no. R200401721). Financial support from the Internal Fund of the J. Heyrovský Institute of Physical Chemistry is also greatly acknowledged.