Archives ‘Articles’

V. E. SAVANEVICH, A. B. BRYUKHOVETSKIY, A. M. KOZHUKHOV, V. P. VLASENKO

Estimation of asteroid’s coordinates on the discrete image/V. E. Savanevich, A. B. Bryukhovetskiy, A. M. Kozhukhov, V P. Vlasenko // Systems of arms and military equipment. – Kharkiv: KHUAF, 2010. Vol. 3(23). P. 154—159.

The method of CCD frames stacking with signal accumulation from a faint asteroid with nonzero visual motion is worked out. The method is based on the CCD frames stacking with shift along the possible trajectories of asteroid’s motion. The feature of method is option of fractional shift (in pixels) between stacking frames. Correct frames stacking with a fractional shift is provided by using the areal approach offered by authors. The method has used by authors in developed system of automatic online new asteroids detection and known asteroids tracking.

V. E. SAVANEVICH, A. M. KOZHUKHOV, A. B. BRYUKHOVETSKIY, E. N. DIKOV

Asteroid’s track detection and estimation of track’s parameters / / V. E. Savanevich, A. M. Kozhukhov, A. B. Bryukhovetskiy, E. N. Dikov, V. N. Tkachov // Radioelektronika i informatika. 2011. N 1 (52). P. 015-021

The decision rule (DR) of amplitude and coordinate detection for collection of marks, which probably belongs one object with nonzero proper motion on frames’ series, is developed. DR has extended for nonzero undetection probability of asteroid’s mark on frames’ series. Decision making about asteroid detection has made only for tracks, which estimation of velocity modulus outnumber the given value of minimal asteroid’s velocity. The method has used by authors in developed system of automatic online new asteroids detection and known asteroids tracking CoLiTec. The results of method application is presented.

CONTENTS

1. Intraframe processing of frames’ series. Problem statement

2. Iterative method of estimation of asteroid’s coordinates on the discrete image

3. Method of CCD-frames’ stacking with signal’s accumulation from a faint asteroid with nonzero apparent motion on series of CCD-frames (method FAMO)

4. Method for preliminary selection of celestial objects’ signals

5. Estimation of asteroid’s apparent brightness after its signal’s amplitudeе

6. Images’ distortion on CCD-framesх

7. Frames’ filtration

8. A double-step method of asteroid’s detection

9. Amplitude-Coordinates Method of detection and estimation of asteroid’s tracks parameters

V. E. SAVANEVICH, A. B. BRYUKHOVETSKIY, A. M. KOZHUKHOV, V. P. VLASENKO

The method of CCD-frames’ stacking with signal’s accumulation from a faint asteroid with nonzero apparent motion on series of CCD-frames / V. E. Savanevich, A. B. Bryukhovetskiy, A. M. Kozhukhov, V P. Vlasenko

Keywords: asteroid, accumulation of asteroid’s signal, CCD-frames’ stacking.

V. E. SAVANEVICH, A. B. BRYUKHOVETSKIY, A. M. KOZHUKHOV, E. N. DIKOV

Estimation of asteroid’s equatorial coordinates according to its coordinates on CCD-frame / V. E. Savanevich, A. B. Bryukhovetskiy, A. M. Kozhukhov, E. N. Dikov // Syst. Obr. Inf.. 2010. N 6(87). P. 172—179.

The developed method represents estimation of asteroid’s equatorial coordinates according to its coordinates on CCD-frame. It considers dependence of errors in equatorial coordinates’ estimation upon apparent brightness of reference stars. The present method also implements uniform choice of reference stars on the image that helps to increase accuracy of estimation. The method’s efficiency has been proven through experimental researches on the natural data. Its precision considerations have been preliminary defined. The present method is used by authors in development of automatic detection system for new and already known asteroids’ tracking.

Keywords: asteroid, estimation of equatorial coordinates, CCD-frame.

V. E. SAVANEVICH, A. B. BRYUKHOVETSKIY, A. M. KOZHUKHOV, V. P. VLASENKO

Estimation of asteroid’s apparent brightness by the amplitude of its signal on CCD-frame / V. E. Savanevich, A. B. Bryukhovetskiy, A. M. Kozhukhov, V P. Vlasenko // Syst. Upr. Nav. ta. Zvy’azku, 2010. N 3(15). P. 46—50.

The developed method represents estimation of asteroid’s apparent brightness by the amplitude of its signal on CCD-frame, based on two-ranges piecewise linear model of photometric solution. The method’s efficiency has been proven through experimental researches on the natural data. Its precision considerations have been preliminary defined. The present method is used by authors in development of automatic detection system for new and already known asteroids’ tracking.

Keywords: asteroid, estimation of apparent brightness, photometry, CCD-frame.