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 RD
20
General information
Preliminary designation
2021 RD
20
Group
Apollo
Absolute magnitude
22.11
Approximate diameter (m)
100
Approximate mass (kg)
1.86·10
9
Number of observations
99
Arc length (days)
17
Approaches
No approaches found
Orbit initial data
Date of initial data
06/09/2026
M
– mean anomaly (degrees)
159.224985
a
– orbit major semiaxis (astronomical units)
2.23760300
e
– orbit eccentricity
0.58854400
ω
– orbit ascending node-perihelion angle (degrees)
126.259697
Ω
– longitude of orbit ascending node (degrees)
178.392395
i
– orbit inclination to the ecliptic plane (degrees)
25.108562
Details...
Orbital evolution
Date
M
a
e
ω
Ω
i
q
P
01/13/1829
32.059792
2.22681452
0.59505225
122.002318
182.613469
24.191217
0.90174353
3.322972
01/21/1858
294.292881
2.22825106
0.59309743
122.541455
182.083644
24.300755
0.90668109
3.326188
01/29/1887
194.794719
2.22734259
0.59358436
123.500497
181.185638
24.492944
0.90522686
3.324154
02/07/1916
96.176570
2.22670099
0.59258576
123.890210
180.728316
24.586069
0.90718970
3.322718
02/14/1945
356.982629
2.22788048
0.58996481
124.799575
179.904585
24.778236
0.91350940
3.325358
02/22/1974
259.531631
2.22674196
0.59025323
125.294858
179.363688
24.890954
0.91240033
3.322810
03/02/2003
163.238177
2.22838004
0.58854823
125.746817
178.866468
24.979713
0.91687092
3.326477
03/09/2032
63.198454
2.22895187
0.58717364
126.484341
178.193027
25.169707
0.92017009
3.327757
03/17/2061
324.090534
2.22698032
0.58688630
126.961099
177.659917
25.293262
0.91999609
3.323343
03/25/2090
226.502086
2.22761914
0.58427502
127.534693
177.080455
25.430936
0.92607691
3.324773
04/03/2119
129.112678
2.22686207
0.58346882
128.122897
176.514780
25.569085
0.92755749
3.323078
04/10/2148
32.252466
2.22842616
0.58163922
128.609937
175.993774
25.700088
0.93228611
3.326580
04/18/2177
293.762809
2.22869183
0.58056495
129.180904
175.473137
25.836423
0.93479147
3.327175
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