An accuracy estimation of the World CCD asteroid observations in the years 1999–2005

Bykov, O. P.; L'Vov, V. N.; Izmailov, I. S.; Kastel, G. R.

doi:10.1016/j.pss.2008.02.032

Cited by 3 publications

(3 citation statements)

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“…The procedure described in Sect. 3.5 is used to assess the accuracy of the expansion for observations standard deviations σ = 0.15, 0.3, 0.45 arcsec (these values are compatible with those collected by Bykov et al 2008). The same value of standard Fig.…”

Section: Test Casesmentioning

confidence: 83%

High-order expansion of the solution of preliminary orbit determination problem

Armellín

Lizia

Lavagna

2012

Celest Mech Dyn Astr

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A method for high-order treatment of uncertainties in preliminary orbit determination is presented. The observations consist in three couples of topocentric right ascensions and declinations at three observation epochs. The goal of preliminary orbit determination is to compute a trajectory that fits with the observations in two-body dynamics. The uncertainties of the observations are usually mapped to the phase space only when additional observations are available and a least squares fitting problem is set up. A method based on Taylor differential algebra for the analytical treatment of observation uncertainties is implemented. Taylor differential algebra allows for the efficient computation of the arbitrary order Taylor expansion of a sufficiently continuous multivariate function. This enables the mapping of the uncertainties from the observation space to the phase space as high-order multivariate Taylor polynomials. These maps can then be propagated forward in time to predict the observable set at successive epochs. This method can be suitably used to recover newly discovered objects when a scarce number of measurements is available. Simulated topocentric observations of asteroids on realistic orbits are used to assess the performances of the method

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Section: Test Casesmentioning

confidence: 83%

High-order expansion of the solution of preliminary orbit determination problem

Armellín

Lizia

Lavagna

2012

Celest Mech Dyn Astr

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“…Для анализа статистических характеристик измерений (оценок положения и блеска небесных объектов) мировым научным сообществом апробированы и чаще всего используются такие научно-исследовательские программные инструменты как ЭПОС [2][3][4][5], AstDyS [6][7][8], Fitsblink [9], а так же статистика Центра малых планет (МРС) [10,11] отклонений малых планет по каждой обсерватории.…”

Section: анализ литературных данныхunclassified

Research methods of statistical characteristics of CCD-measurement of position and brightness of the Solar system objects

Безкровный

Дашкова

Соковикова

et al. 2015

TAPR

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Предложена совокупность методов оценки статистических свойств CCD-измерений Солнечной системы. В качестве источников данных используются обработанные серии CCD-кадров астероидных обзоров, а так же Интернет-сервисы. Разработанные методы позволяют проводить анализ, включая оперативный, расширенного множества показателей точности измерения и качества обнаружения астероидов на расширенном множестве анализируемых подвыборок измерений и кадров.

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“…Addi tionally an accuracy estimation of the world asteroid observations is carried out for a long time with the help of EPOS (Bykov et al, 2008).…”

Section: The Program "O-c" (Observations Minus Calculations)mentioning

confidence: 99%