Meteors Members: Ahn Soo Young Jee Myeong Keun Jee Myeong Keun Diego Širola Diego Širola Slaven Mišak Slaven Mišak Team leader: Nikola Strah Scientific.

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Presentation transcript:

Meteors Members: Ahn Soo Young Jee Myeong Keun Jee Myeong Keun Diego Širola Diego Širola Slaven Mišak Slaven Mišak Team leader: Nikola Strah Scientific advisors: Goran Zgrablić Izidor Pelajić Nikola Biliškov Izidor Pelajić Nikola Biliškov

Goals Meteor observation RadioVideoVisualELF

Meteors: -small particles of dust -up to 50m in diameter -circle the Sun – meteor streams Background

Radio observation Goal: -detect a signal from a station far far away (more than 800 km) (forward scattering) (forward scattering) -record the signal through the night -analyze the recorded data Meteor Group Lab TV station Prague Ionization trail

Equipment - Yagi antenna - iCom IC-PCR1000 receiver - Computer and Humanware

Details  iCom IC-PCR1000 receiver  Frequency MHz TV station in Prague, output power 150 kW, distance 544 km, video and audio signal recorded  PC computer Pentium 3  Data recording, reduction and analysis performed with CoolEdit & Audacity software, sampling rate Hz Yagi antenna in the dark Digging the hole for the antenna

Results  13h of raw data to be processed  10 minutes of actual meteor recordings

Visual observation Plan: -gather few hours of observations -send report to IMO -calculate ZHR

Results - Few hours of observation - Reports sent to IMO - ZHR calculated for all observations - Observed showers: - Perseides - Southern δ Aquarides - κ Cygnides ZHR:-κ Cygnides- 1.day 3 2.day 40 2.day 40 3.day 41 3.day 41

ELF  Goals: Record a meteor signal in ELF band ( Hz)Record a meteor signal in ELF band ( Hz)

Equipment  ELF orb  50 Hz filter  DC filter  and appropriate software  NI DAQmx SCB-68 and appropriate software

Schematics Electrometer 50 Hz cutoff 150 Hz cutoff Low pass DC Filter NI DAQmx SCB-68 PC with acquisition software made in LabView 7.1

Results  equipment testing Signal from the electrometer Signal from the electrometer when electrometer was grounded

Without the grounding With the grounding - We used Slaven for grounding purposes

 Signal recorded

 FFT calculated using LabView programmed software and CoolEdit Frequency Analysis

Video  Goal: Simultaniousley record the sky with video camera combined with radio & visual observation for analisys.Simultaniousley record the sky with video camera combined with radio & visual observation for analisys.

Equipment  Watec WAT-902H CCD camera  DC power supply- founded and thoroughly tested  Video capture card  MetRec and Meteoder software

Results - Video capture card (Meteor II) doesn’t work - Camera works - DC power supply is operating “First light” from camera- tested on video monitor from the control room of the observatory

THE END Thank you for your attention! Any questions?