Comparative analysis of the positional accuracy of CCD measurements of small bodies in the solar system software CoLiTec and Astrometrica
- 1 November 2015
- journal article
- Published by Allerton Press in Kinematics and Physics of Celestial Bodies
- Vol. 31 (6), 302-313
- https://doi.org/10.3103/s0884591315060045
Abstract
The CoLiTec software for the automated search for small celestial objects of the solar system on a series of CCD frames has been developed within the Ukrainian virtual observatory project. Four comets and more than a thousand asteroids were discovered using the software. It was also used to send approximately 700000 positional CCD measurements to the Minor Planet Center. In this paper, accuracy factors of positional CCD measurements using the CoLiTec software are analyzed according to data from the Minor Planet Center. The comparative analysis of these factors according to the results of the processing of the same frames using CoLiTec and Astrometrica software is also conducted. In the case of low signal to noise ratios, the standard deviation of positional CCD measurements using the Astrometrica software is 30–50% greater than that of the CoLiTec software.Keywords
This publication has 7 references indexed in Scilit:
- A new method based on the subpixel Gaussian model for accurate estimation of asteroid coordinatesMonthly Notices of the Royal Astronomical Society, 2015
- THE FOURTH US NAVAL OBSERVATORY CCD ASTROGRAPH CATALOG (UCAC4)The Astronomical Journal, 2013
- Astroinformation resource of the Ukrainian virtual observatory: Joint observational data archive, scientific tasks, and softwareKinematics and Physics of Celestial Bodies, 2012
- The program CoLiTec for automated detection of faint celestial bodiesKosmìčna nauka ì tehnologìâ, 2012
- Ukrainian Virtual Observatory (UkrVO). Current state and development prospects for the Joint Archive of observationsKosmìčna nauka ì tehnologìâ, 2011
- Ukrainian virtual observatory (UkrVO). The goals, structure, and tasksKosmìčna nauka ì tehnologìâ, 2010
- An International Asteroid Search CampaignAstronomy Education Review, 2008