English
Related papers

Related papers: A digital video system for observing and recording…

200 papers

Occultations, the covering up of one celestial body by another celestial body, have been used in astronomy for millennia to learn about the sun and moon. Since 2018, VERITAS has implemented a program to detect predicted asteroid…

Instrumentation and Methods for Astrophysics · Physics 2025-12-15 Joshua Bartkoske , Anne Duerr , Dave Kieda

In recent years there appeared a need for astronomical observations timed with sub-millisecond accuracy. These include e.g. timing stellar occultations by small, sub-km or fast Near Earth Asteroids, but also tracking artificial satellites…

Instrumentation and Methods for Astrophysics · Physics 2023-03-01 K. Kamiński , C. Weber , A. Marciniak , M. Żołnowski , M. Gędek

Context: Observation of star occultations is a powerful tool to determine shapes and sizes of asteroids. This is key information necessary for studying the evolution of the asteroid belt and to calibrate indirect methods of size…

Astrophysics · Physics 2009-06-23 P. Tanga , M. Delbo

We propose to design and build an algorithm that will use a Convolutional Neural Network (CNN) and observations from the Unistellar network to reliably detect asteroid occultations. The Unistellar Network, made of more than 10,000 digital…

Earth and Planetary Astrophysics · Physics 2022-12-21 Dorian Cazeneuve , Franck Marchis , Guillaume Blaclard , Paul A. Dalba , Victor Martin , Joé Asencioa

In terms of scientific output, the best way to study solar system bodies is sending spacecraft to make in-situ measurements or to observe at close distance. Probably, the second best means to learn about important physical properties of…

Earth and Planetary Astrophysics · Physics 2019-05-14 J. L. Ortiz , B. Sicardy , J. I. B. Camargo , P. Santos-Sanz , F. Braga-Ribas

The nature and physical properties of asteroids, in particular those orbiting in the near-Earth space, are of scientific interest and practical importance. Exoplanet surveys can be excellent resources to detect asteroids, both already known…

Earth and Planetary Astrophysics · Physics 2020-01-08 M. Cortés-Contreras , F. M. Jiménez-Esteban , M. Mahlke , E. Solano , J. Ďurech , S. Barceló Forteza , C. Rodrigo , A. Velasco , B. Carry

The Taiwan-America Occultation Survey (TAOS) aims to determine the number of small icy bodies in the outer reach of the Solar System by means of stellar occultation. An array of 4 robotic small (D=0.5 m), wide-field (f/1.9) telescopes have…

There are several methods for timing occultations. Many astronomers may not have access to standard video timing tools, but many of them have access to digital single-lens reflex (DSLR) cameras. In order to increase the accuracy of timing,…

Instrumentation and Methods for Astrophysics · Physics 2020-06-03 A. Halavati , A. Poro

We discuss the feasibility of and present initial designs and approximate cost estimates for a large ($N\sim2000$) network of small photometric telescopes that is purpose-built to monitor $V \lesssim 15$ Gaia Mission program stars for…

Earth and Planetary Astrophysics · Physics 2019-06-26 Malena Rice , Gregory Laughlin

The All Sky Automated Survey (ASAS) is monitoring all sky to about 14 mag with a cadence of about 1 day; it has discovered about 10^5 variable stars, most of them new. The instrument used for the survey had aperture of 7 cm. A search for…

Astrophysics · Physics 2009-11-11 Bohdan Paczynski

Mini-EUSO is a space experiment selected to be installed inside the International Space Station. It has a compact telescope with a large field of view ($44 $\times$ 44$ sq. deg.) focusing light on an array of photo-multipliers tubes in…

Instrumentation and Methods for Astrophysics · Physics 2019-07-02 Sara Turriziani , Jonah Ekelund , Katsuhiko Tsuno , Marco Casolino , Toshikazu Ebisuzaki

We describe the prediction, design, execution and calibration of stellar and solar occultation observations of Saturn's rings by the Visual and Infrared Mapping Spectrometer (VIMS) instrument on the Cassini spacecraft. Particular attention…

Earth and Planetary Astrophysics · Physics 2020-06-24 P. D. Nicholson , T. Ansty , M. M. Hedman , D. Creel , J. Ahlers , R. A. Harbison , R. H. Brown , R. N. Clark , K. H. Baines , B. J. Buratti , C. Sotin , S. V. Badman

The Asteroid Terrestrial impact Last Alert System (ATLAS) system consists of two 0.5m Schmidt telescopes with cameras covering 29 square degrees at plate scale of 1.86 arcsec per pixel. Working in tandem, the telescopes routinely survey the…

Occultations of stars by asteroids have been observed since 1961, increasing from a very small number to now over 500 annually. We have created and regularly maintain a growing data-set of more than 5,000 observed asteroidal occultations.…

Organized Autotelescopes for Serendipitous Event Survey (OASES) is an optical observation project that aims to detect and investigate stellar occultation events by kilometer-sized trans-Neptunian objects (TNOs). In this project, multiple…

Instrumentation and Methods for Astrophysics · Physics 2017-09-20 Ko Arimatsu , Kohji Tsumura , Kohei Ichikawa , Fumihiko Usui , Takafumi Ootsubo , Takayuki Kotani , Yuki Sarugaku , Takehiko Wada , Koichi Nagase , Jun-ichi Watanabe

A stellar occultation by the large trans-Neptunian object (90482) Orcus was predicted to occur on 2017 March 07. Observations were made at five sites in North and South America. High-speed, visible-wavelength images were taken at all sites,…

Earth and Planetary Astrophysics · Physics 2026-02-19 A. A. Sickafoose , A. S. Bosh , S. E. Levine , C. A. Zuluaga , A. Genade , K. Schindler , T. A. Lister , M. J. Person

Kuiper belt objects smaller than a few kilometers are difficult to observe directly. They can be detected when they randomly occult a background star. Close to the ecliptic plane, each star is occulted once every tens of thousands of hours,…

Instrumentation and Methods for Astrophysics · Physics 2023-10-06 Guy Nir , Eran O. Ofek , Barak Zackay

The exploration of kilometre-sized trans-Neptunian objects (TNOs) is one of the ultimate goals in the search for the origin and evolution of the Solar System. However, such exploration is challenging because these small bodies are too faint…

Earth and Planetary Astrophysics · Physics 2024-11-08 Ko Arimatsu

Recording a stellar occultation is one powerful method that gives direct information about the physical properties of the occulting solar system object. In order to obtain reliable and accurate results, simultaneous observations from…

We describe an image timestamp verification system to determine the exposure timing characteristics and continuity of images made by an imaging camera and recorder, with reference to Coordinated Universal Time (UTC). The original use was to…

Instrumentation and Methods for Astrophysics · Physics 2015-03-20 M. A. , Barry , Dave Gault , Greg Bolt , Alistair McEwan , Miroslav D. Filipovic , Graeme L. White
‹ Prev 1 2 3 10 Next ›