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 SJ
2
General information
Preliminary designation
2021 SJ
2
Group
Apollo
Absolute magnitude
25.63
Approximate diameter (m)
20
Approximate mass (kg)
1.44·10
7
Number of observations
15
Arc length (days)
12
Approaches
No approaches found
Orbit initial data
Date of initial data
06/09/2026
M
– mean anomaly (degrees)
327.797606
a
– orbit major semiaxis (astronomical units)
1.85284900
e
– orbit eccentricity
0.49092800
ω
– orbit ascending node-perihelion angle (degrees)
108.879811
Ω
– longitude of orbit ascending node (degrees)
202.962650
i
– orbit inclination to the ecliptic plane (degrees)
3.265869
Details...
Orbital evolution
Date
M
a
e
ω
Ω
i
q
P
01/13/1829
336.558997
1.85736445
0.49096770
102.114710
208.587222
3.166320
0.94545849
2.531316
01/21/1858
143.964802
1.85630562
0.49141161
102.757983
208.062750
3.172686
0.94409549
2.529151
01/29/1887
310.346222
1.85778773
0.49144112
103.719311
207.241310
3.182217
0.94479446
2.532181
02/07/1916
116.157938
1.85820272
0.49139663
104.909760
206.275478
3.197692
0.94508816
2.533030
02/14/1945
281.088500
1.85808671
0.49113934
106.237535
205.182506
3.225183
0.94550724
2.532792
02/22/1974
86.343131
1.85691556
0.49175416
106.925614
204.643046
3.233388
0.94376961
2.530398
03/02/2003
254.237167
1.85715909
0.49187985
107.867953
203.837502
3.243723
0.94365995
2.530896
03/09/2032
63.847943
1.85704216
0.49143278
108.953589
202.880505
3.270827
0.94443076
2.530657
03/17/2061
232.262089
1.85641225
0.49199940
109.918418
202.064095
3.279458
0.94305854
2.529369
03/25/2090
37.009465
1.85844907
0.49176278
110.715824
201.446090
3.294807
0.94453299
2.533533
04/03/2119
199.850992
1.85873281
0.49227374
111.592573
200.687120
3.301646
0.94372746
2.534113
04/10/2148
1.107723
1.85924207
0.49210457
112.528342
199.919642
3.316804
0.94430056
2.535155
04/18/2177
163.180408
1.85713532
0.49155281
113.381310
199.200061
3.340728
0.94425523
2.530847
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