Catalogue of the Solar System Small Bodies Orbital Evolution
Catalogue of the Solar System Small Bodies Orbital Evolution
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Asteroid General Data
2021 HD
General information
Preliminary designation
2021 HD
Group
Aten
Absolute magnitude
26.20
Approximate diameter (m)
15
Approximate mass (kg)
6.54·10
6
Number of observations
22
Arc length (days)
4
Approaches
No approaches found
Orbit initial data
Date of initial data
06/09/2026
M
– mean anomaly (degrees)
223.918365
a
– orbit major semiaxis (astronomical units)
0.91373800
e
– orbit eccentricity
0.32746600
ω
– orbit ascending node-perihelion angle (degrees)
127.650648
Ω
– longitude of orbit ascending node (degrees)
208.358826
i
– orbit inclination to the ecliptic plane (degrees)
14.078245
Details...
Orbital evolution
Date
M
a
e
ω
Ω
i
q
P
01/13/1829
332.328388
0.91041416
0.32587062
127.413635
209.777906
14.298424
0.61373693
0.868679
01/21/1858
114.212343
0.91072874
0.32566579
127.420249
209.581579
14.299756
0.61413555
0.869129
01/29/1887
235.954076
0.91129348
0.32713029
127.482475
209.335509
14.171472
0.61318178
0.869937
02/07/1916
356.495721
0.91232822
0.32748611
127.341435
209.120410
14.093741
0.61355340
0.871420
02/14/1945
110.918939
0.91214860
0.32703750
127.264393
208.915446
14.093051
0.61384180
0.871162
02/22/1974
222.969762
0.91206552
0.32690056
127.346094
208.725898
14.098607
0.61391079
0.871043
03/02/2003
336.280993
0.91182172
0.32724853
127.600692
208.533090
14.098355
0.61342940
0.870694
03/09/2032
74.672431
0.91326145
0.32765909
127.784824
208.316459
14.077081
0.61402303
0.872757
03/17/2061
175.312139
0.91229217
0.32739507
127.788052
208.104915
14.077857
0.61361222
0.871368
03/25/2090
281.072518
0.91275522
0.32774765
127.578991
207.843324
14.023418
0.61360184
0.872031
04/03/2119
11.741318
0.91285972
0.32811202
127.760137
207.622142
14.003639
0.61333947
0.872181
04/10/2148
118.543950
0.91193151
0.32762854
127.536471
207.395367
13.992798
0.61315672
0.870851
04/18/2177
235.364757
0.91201505
0.32730184
127.527711
207.190853
13.994377
0.61351085
0.870971
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