Catalogue of the Solar System Small Bodies Orbital Evolution
Catalogue of the Solar System Small Bodies Orbital Evolution
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Asteroid search
Summary information
Asteroids selection
Closest approaches
Approaches archive
Diagram 2D
Histogram
Impact probability
Potential hazardous
Asteroid information
General data
Initial data
Approaches
Asteroid orbit evolution
Tables
Graphs
3D animation
Calculation

Asteroid General Data

2021 ET4

General information

Preliminary designation2021 ET4
GroupApollo
Absolute magnitude24.16
Approximate diameter (m)39
Approximate mass (kg)1.10·108
Number of observations222
Arc length (days)10

Approaches

No approaches found

Orbit initial data

Date of initial data06/09/2026
M – mean anomaly (degrees)300.609055
a – orbit major semiaxis (astronomical units)2.02271000
e – orbit eccentricity0.51309900
ω – orbit ascending node-perihelion angle (degrees)153.417849
Ω – longitude of orbit ascending node (degrees)359.467420
i – orbit inclination to the ecliptic plane (degrees)10.994124
Details...

Orbital evolution

Date
M
a
e
ω
Ω
i
q
P
01/13/182967.5422702.024720030.51756291149.5570741.72124110.7418260.976800042.881032
01/21/185891.5135442.025957860.51271164150.2984451.39706310.7764020.987225692.883674
01/29/1887117.3661162.020769150.51465145151.1275770.94309810.8613850.980777372.872603
02/07/1916157.2316562.018888210.51633626151.4241680.60843210.8943740.976463032.868594
02/14/1945193.3078872.022664850.51241642151.8048890.40744610.8798790.986218182.876647
02/22/1974224.3122662.021231730.51373258152.848780359.92489010.9590970.982859142.873590
03/02/2003264.4842822.019561940.51551592153.100638359.64565510.9832340.978445612.870030
03/09/2032299.9783452.022993770.51289522153.413720359.44658310.9917260.985409942.877348
03/17/2061325.6966962.023201730.51219640154.471972359.05259711.0494400.986925082.877792
03/25/2090359.9909952.020859910.51434744154.926989358.72646611.0940880.981435792.872797
04/03/211936.2192582.023313600.51187263155.127450358.49295011.0791530.987634762.878031
04/10/214863.8983862.023493930.51016362155.863322358.22510011.1049920.991180942.878415
04/18/217799.9048452.017461780.51337894156.619169357.77746911.1933830.981739402.865554
Detailed table... Graphs... 3D animation... Calculation on the date...

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This project was supported by the Federal Agency of Education (project codes RNP 2.1.1.1689, RNP 2.1.1.745).
Samara State Technical University
Applied Mathematics and Information Science Department
Яндекс.Метрика