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 HH
General information
Preliminary designation
2021 HH
Group
Apollo
Absolute magnitude
25.08
Approximate diameter (m)
26
Approximate mass (kg)
3.08·10
7
Number of observations
52
Arc length (days)
14
Approaches
No approaches found
Orbit initial data
Date of initial data
06/09/2026
M
– mean anomaly (degrees)
311.627632
a
– orbit major semiaxis (astronomical units)
1.44194200
e
– orbit eccentricity
0.53529800
ω
– orbit ascending node-perihelion angle (degrees)
100.723365
Ω
– longitude of orbit ascending node (degrees)
205.999638
i
– orbit inclination to the ecliptic plane (degrees)
9.113583
Details...
Orbital evolution
Date
M
a
e
ω
Ω
i
q
P
01/13/1829
342.000974
1.44223853
0.53458457
97.637082
208.705750
9.137763
0.67124006
1.732033
01/21/1858
254.398494
1.44180913
0.53446239
98.061212
208.346306
9.143452
0.67121637
1.731260
01/29/1887
165.920818
1.44242054
0.53466413
98.552837
207.911114
9.150074
0.67121002
1.732361
02/07/1916
68.808753
1.44396471
0.53500260
98.987106
207.552240
9.147105
0.67143983
1.735144
02/14/1945
330.266413
1.44378156
0.53495233
99.473033
207.124685
9.157913
0.67142725
1.734814
02/22/1974
237.447226
1.44250567
0.53499891
99.866910
206.728917
9.119349
0.67076671
1.732515
03/02/2003
153.007113
1.44179459
0.53504095
100.351995
206.325995
9.118685
0.67037545
1.731234
03/09/2032
67.743261
1.44129782
0.53498820
100.747593
205.925452
9.113537
0.67022049
1.730339
03/17/2061
344.839659
1.44123821
0.53508054
101.142803
205.564868
9.122681
0.67005970
1.730232
03/25/2090
265.385555
1.44065321
0.53488591
101.638295
205.131790
9.117507
0.67006811
1.729178
04/03/2119
180.446293
1.44119973
0.53503009
102.109009
204.768046
9.116213
0.67011451
1.730162
04/10/2148
96.045830
1.44202084
0.53504582
102.642946
204.338724
9.120507
0.67047362
1.731641
04/18/2177
11.404937
1.44152508
0.53502906
103.064079
203.978367
9.123944
0.67026727
1.730748
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