Regions of possible motions for new Jovian satellites

Avdyushev, V. A.; Banschikova, M. A.

doi:10.1134/s0038094607050048

Cited by 20 publications

(13 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Outside these time intervals, the errors of the ephemerides may be more than 10 arcsec. Analysis of Avdyushev & Banshchikova (2007) shows that the errors of the ephemerides of some new outer satellites can be close to the dimensions of their orbits.…”

Section: Precision and Accuracy Of The Ephemeridesmentioning

confidence: 94%

The natural satellites ephemerides facility MULTI-SAT

Emel'Yanov¹,

Arlot²

2008

A&A

View full text Add to dashboard Cite

Context. There is a need in some research facilities for deriving ephemerides, controlling observations, verifying various models of motion, and calculating the coordinates in space of natural planetary satellites. Aims. The goal of our work is to elaborate the ephemerides of all natural satellites based upon all observations available to date and readily accessible for any user via the Internet. Methods. For all outer planetary satellites, original numerical models of motion are used that are based on all published observations. For other satellites, the theoretical models of the motion are taken from publications that are as recent as possible. Complete collection of the theories and models of motion is realized as a software for the ephemerides of natural satellites available on the web pages of the so-called server MULTI-SAT. Results. A new facility for producing ephemerides of all natural satellites of planets (except the Moon) has been created at IMCCE and SAI. Special features of the ephemerides are realized, such as predicting the phenomena and providing configurations useful for the observers. The server MULTI-SAT is accessible through the Internet. The URL addresses are http://www.imcce.fr/sat (English and French versions at IMCCE) and http://www.sai.msu.ru/neb/nss/index.htm (English, French, and Russian versions at SAI). This paper includes a complete review of the most precise theories of motion of all natural satellites that we used and an analysis of the precision of the proposed ephemerides.

show abstract

Section: Precision and Accuracy Of The Ephemeridesmentioning

confidence: 94%

The natural satellites ephemerides facility MULTI-SAT

Emel'Yanov¹,

Arlot²

2008

A&A

View full text Add to dashboard Cite

show abstract

“…The observations of the satellite are on a very short orbital arc: 11 times of observations (N = 22) 4 for 27 days, so the orbital parameters of the satellite are determined very insecurely. Due to such a specific distribution of observations the spread of virtual parameter values for S/2003 J04 is wide so that the satellite can be considered as a lost object (Avdyushev and Banschikova 2007). By the way, as is seen from Fig.…”

Section: S/2003 J04mentioning

confidence: 93%

“…With the advent of quick-operating and multiprocessor computers, recently one tends to employ statistic simulation of virtual parameter values for investigating uncertainties in orbits determined from observations (Chernitsov et al 1998;Virtanen et al 2001;Bordovitsyna et al 2001;Williams et al 2005;Muinonen et al 2006;Avdyushev and Banschikova 2007;Desmars et al 2009;Avdyushev 2009;Emel'yanov 2010), which is generally required when V. A. Avdyushev (B) Celestial Mechanics and Astrometry Department, Applied Mathematics and Mechanics Institute, 634050 Tomsk, Russia e-mail: sch@niipmm.tsu.ru planning future observations and identifying celestial bodies, and also in the problems of asteroid hazard.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear methods of statistic simulation of virtual parameter values for investigating uncertainties in orbits determined from observations

Avdyushev

2011

Celest Mech Dyn Astr

View full text Add to dashboard Cite

Determination of orbital parameters from observations is formally a nonlinear inverse problem for solving which evidently nonlinear methods are required. Meanwhile, an accompanying stage in solving the inverse problem is the evaluation of parametric accuracy to which, however, linear methods are conventionally applied. This is quite justified if parametric errors caused by observation errors are rather small, otherwise this is not at all since the nonlinearity of the inverse problem can be considerable to influence on the evaluations of parametric accuracy especially when the observations are very few. With the advent of quick-operating and multiprocessor computers, recently one tends to employ statistic simulation of virtual parameter values for investigating uncertainties in orbits determined from observations. In the paper are just discussed the methods designed specially for nonlinear statistic simulation of virtual parameter values. Their efficiency is investigated in application to estimating uncertainties in the orbit of Jovian satellite S/2003 J04 whose orbital parameters are ill-determined owing to scanty available observations. Indices of nonlinearity are introduced for making decision in the choice between linear and nonlinear methods.

show abstract

“…The correct statistical alternative is to consider how the elements affect each other, applying the Monte Carlo using the Covariance Matrix (MCCM) approach (Bordovitsyna et al 2001;Avdyushev & Banschikova 2007), or to follow the procedure described in Sitarski (1998Sitarski ( , 1999Sitarski ( , 2006.…”

Section: Impact Of Errors: Mccm Treatmentmentioning

confidence: 99%

From horseshoe to quasi-satellite and back again: the curious dynamics of Earth co-orbital asteroid 2015 SO2

Marcos¹,

Marcos²

2015

Astrophys Space Sci

View full text Add to dashboard Cite

Earth co-orbitals of the horseshoe type are interesting objects to study for practical reasons. They are relatively easy to access from our planet and that makes them attractive targets for sample return missions. Here, we show that near-Earth asteroid (NEA) 2015 SO 2 is a transient co-orbital to the Earth that experiences a rather peculiar orbital evolution characterised by recurrent, alternating horseshoe and quasisatellite episodes. It is currently following a horseshoe trajectory, the ninth asteroid known to do so. Besides moving inside the 1:1 mean motion resonance with the Earth, it is subjected to a Kozai resonance with the value of the argument of perihelion librating around 270 • . Contrary to other NEAs, asteroid 2015 SO 2 may have remained in the vicinity of Earth's co-orbital region for a few hundreds of thousands of years.

show abstract

Regions of possible motions for new Jovian satellites

Cited by 20 publications

References 5 publications

The natural satellites ephemerides facility MULTI-SAT

The natural satellites ephemerides facility MULTI-SAT

Nonlinear methods of statistic simulation of virtual parameter values for investigating uncertainties in orbits determined from observations

From horseshoe to quasi-satellite and back again: the curious dynamics of Earth co-orbital asteroid 2015 SO2

Contact Info

Product

Resources

About