CCD modification to obtain high-precision orbits of meteoroids

Atreya, Prakash; Vaubaillon, Jérémie; Colas, François; Bouley, Sylvain; Gaillard, Boris

doi:10.1111/j.1365-2966.2012.21092.x

Cited by 8 publications

(6 citation statements)

References 6 publications

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“…The necessity of high quality orbits of video meteors and precision in their velocity measurements has been discussed by Atreya et al (2012) and Egal et al (2014), who, to make improvements, introduced the CABERNET (Camera for Better Resolution Network) system. The importance of an error analysis was reported by Drolshagen et al (2014) and Albin et al (2015) in their analysis of the meteor velocity distribution from the CILBO (Canary Island Long-Baseline Observatory) double station video camera data.…”

Section: Video Orbits and Their Precisionmentioning

confidence: 99%

Meteoroid orbits from video meteors. The case of the Geminid stream

Hajduková

Koten

Kornoš

et al. 2017

Planetary and Space Science

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We use the Slovak and Czech video meteor observations, as well as video meteoroid orbits collected in the CAMS, SonotaCo, EDMOND and DMS catalogues, for an analysis of the distribution of meteoroid orbits within the stream of the Geminids and of the dispersion of their radiants. We concentrate on the influence of the measurement errors on the precision of the orbits obtained from the video networks that are based on various meteordetection software packages and various meteor orbital element softwares.The Geminids radiant dispersion obtained from the large video catalogues reaches the dispersion of the radio observed Geminids, wherby the diffused marginal regions are affected mostly by meteoroids with extreme values (small or large) of the semi-major axes. Meteoroids of shorter semimajor axes concentrate at the eastern side of the radiant area and those of longer semi-major axes at the western part.The observed orbital dispersions in the Geminid stream described by the median absolute deviation range from 0.029 to 0.042 AU −1 for the video catalogues. The distribution of the semi-major axes of video meteors in all the databases, except for the Ondřejov (Czech) data, seem to be systematically biased in comparison with the photographic and radio meteors. The determined velocities of the video data are underestimated, probably as a consequence of the methods used for the positional and velocity measurements. The largest shift is observed in the EDMOND and SonotaCo catalogues.Except for the measurement errors which influence the analyses and their interpretations, we also point out the problem of the uncertainties of the numerical integration procedures that influence the simulations' results. Several experimental integrations of the Geminids parent asteroid, which we performed from the present to the past and then back to the year 2015, showed that a complete reproduction, including also the mean anomaly, is only possible for a time span of about 2700 years.

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Section: Video Orbits and Their Precisionmentioning

confidence: 99%

Meteoroid orbits from video meteors. The case of the Geminid stream

Hajduková

Koten

Kornoš

et al. 2017

Planetary and Space Science

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“…Traditionally the camera units are controlled by connecting to a separate computer (Long et al 2006) comprised of an in-situ computer (Walker and Schwarz 2006). The computer is equipped with capturing and analyzing programs for instance OACAPTURE, WSENTINEL, UFO-CAPTURE and METEORSCAN (Atreya et al 2012).…”

Section: Introductionmentioning

confidence: 99%

A Robotic Camera for Monitoring Meteors Entering the Earth’s Atmosphere near the Equator

Amaradasa¹,

Mahanama²,

Abeywickrama³

et al. 2019

AdAp

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The systematic detection and tracking of meteor streams and global fireball events potentially provide a dataset of immense importance to our understanding of passing objects. To this end hemispherical and wide field of view cameras are used in meteor observations with a synchronized network of cameras to record intricate details about meteor activities. In this research a hemispherical robotic camera unit named AWITC was designed to monitor meteors entering earth's atmosphere near Sri Lanka. The unit consists of an astronomy camera with a Complementary Metal Oxide Sensor (CMOS), a fish eye lens, a single board computer, a storage device, internet connectivity and other sensors allowing it to function with minimum human supervision. The images are saved with record of time, date and temperature. The time of the computer can be updated from both internet and GPS connections. The unit has two enclosures for protecting the electronics from solar radiation and rain and all the main devices reside in the internal enclosure. Temperature and humidity sensors are included to monitor the ventilation in the enclosure. A five element YAGI Wi-Fi antenna was designed to extend the wireless connectivity of the unit. The obtained images are saved in the internal storage and a copy is sent to a sever computer. All the software used, are uniquely developed for the unit and the cohesion of hardware and software were tested. The camera unit functioned for eleven months continuously and captured a large number of meteor activities.

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“…The above-mentioned networks employ low-cost 1/3′′ or 1/2′′ security cameras [ 7 ] with a typical spatial resolution of 720 × 564 pixels and a frame rate between 20 and 25 frames per second (fps). Highly-sensitive E2V CCD still cameras [ 8 ] or cameras with custom-made electronic shutter systems [ 9 ] are also utilized. GigE (Gigabit Ethernet) cameras with 30 fps are used in the framework of the French initiative Fireball Recovery and InterPlanetary Observation Network (FRIPON) [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Long-Term Continuous Double Station Observation of Faint Meteor Showers

Vítek

Páta

Koten

et al. 2016

Sensors

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Meteor detection and analysis is an essential topic in the field of astronomy. In this paper, a high-sensitivity and high-time-resolution imaging device for the detection of faint meteoric events is presented. The instrument is based on a fast CCD camera and an image intensifier. Two such instruments form a double-station observation network. The MAIA (Meteor Automatic Imager and Analyzer) system has been in continuous operation since 2013 and has successfully captured hundreds of meteors belonging to different meteor showers, as well as sporadic meteors. A data processing pipeline for the efficient processing and evaluation of the massive amount of video sequences is also introduced in this paper.

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CCD modification to obtain high-precision orbits of meteoroids

Cited by 8 publications

References 6 publications

Meteoroid orbits from video meteors. The case of the Geminid stream

Meteoroid orbits from video meteors. The case of the Geminid stream

A Robotic Camera for Monitoring Meteors Entering the Earth’s Atmosphere near the Equator

Long-Term Continuous Double Station Observation of Faint Meteor Showers

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