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 SD
General information
Preliminary designation
2021 SD
Group
Apollo
Absolute magnitude
26.98
Approximate diameter (m)
11
Approximate mass (kg)
2.23·10
6
Number of observations
22
Arc length (days)
1
Approaches
No approaches found
Orbit initial data
Date of initial data
12/22/2023
M
– mean anomaly (degrees)
143.640889
a
– orbit major semiaxis (astronomical units)
1.32470200
e
– orbit eccentricity
0.32081400
ω
– orbit ascending node-perihelion angle (degrees)
237.562213
Ω
– longitude of orbit ascending node (degrees)
174.262569
i
– orbit inclination to the ecliptic plane (degrees)
13.158484
Details...
Orbital evolution
Date
M
a
e
ω
Ω
i
q
P
01/13/1829
118.029389
1.33010792
0.32181569
235.190916
175.556803
13.194096
0.90205832
1.534020
01/21/1858
87.575432
1.33058002
0.32214335
235.430978
175.379317
13.191735
0.90194251
1.534836
01/29/1887
60.169636
1.32850959
0.32143879
235.833341
175.186579
13.195954
0.90147507
1.531255
02/07/1916
41.563188
1.32890187
0.32150075
236.032678
174.989506
13.192733
0.90165892
1.531934
02/14/1945
15.640936
1.33124584
0.32251660
236.118830
174.813077
13.177583
0.90189696
1.535989
02/22/1974
336.289783
1.33143370
0.32269678
236.472688
174.614858
13.172773
0.90178433
1.536314
03/02/2003
296.995721
1.33006245
0.32222613
236.875078
174.394022
13.170694
0.90148157
1.533941
03/09/2032
282.459187
1.32511788
0.32087074
237.650683
174.188064
13.157617
0.89992632
1.525395
03/17/2061
292.145453
1.32499633
0.32095009
237.895909
174.010543
13.156453
0.89973864
1.525185
03/25/2090
299.355261
1.32634630
0.32170741
238.059340
173.816011
13.142880
0.89965087
1.527517
04/03/2119
299.730677
1.32631958
0.32169421
238.246632
173.643533
13.141783
0.89965025
1.527471
04/10/2148
305.674435
1.32387436
0.32106575
238.723130
173.451589
13.142812
0.89882365
1.523249
04/18/2177
324.806478
1.32338329
0.32087577
239.001060
173.257531
13.142498
0.89874165
1.522401
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