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 RU
12
General information
Preliminary designation
2021 RU
12
Group
Apollo
Absolute magnitude
21.54
Approximate diameter (m)
130
Approximate mass (kg)
4.09·10
9
Number of observations
85
Arc length (days)
200
Approaches
No approaches found
Orbit initial data
Date of initial data
06/09/2026
M
– mean anomaly (degrees)
79.766232
a
– orbit major semiaxis (astronomical units)
2.38992900
e
– orbit eccentricity
0.63580200
ω
– orbit ascending node-perihelion angle (degrees)
232.543404
Ω
– longitude of orbit ascending node (degrees)
205.144805
i
– orbit inclination to the ecliptic plane (degrees)
10.916117
Details...
Orbital evolution
Date
M
a
e
ω
Ω
i
q
P
01/13/1829
196.632325
2.38460624
0.63408685
223.720474
212.685082
11.853614
0.87255879
3.682355
01/21/1858
161.690723
2.38256331
0.63555728
224.196577
212.209722
11.809193
0.86830785
3.677624
01/29/1887
117.383329
2.38046456
0.63548812
226.327330
210.585695
11.572813
0.86770761
3.672765
02/07/1916
87.888450
2.38207742
0.63329442
227.075910
209.826173
11.480625
0.87352108
3.676499
02/14/1945
53.054724
2.37763422
0.63807546
228.863558
208.455621
11.299279
0.86052416
3.666217
02/22/1974
13.699096
2.39119397
0.63376602
230.770353
206.722075
11.073935
0.87573649
3.697625
03/02/2003
326.511921
2.38407409
0.64022279
231.643118
206.046230
11.014294
0.85773551
3.681122
03/09/2032
278.591764
2.38994594
0.63658808
234.098216
203.922146
10.763067
0.86853484
3.694730
03/17/2061
237.608414
2.38163158
0.64070933
234.603951
203.464621
10.743044
0.85569801
3.675467
03/25/2090
191.163838
2.38847397
0.63733667
236.865544
201.500575
10.531525
0.86621191
3.691317
04/03/2119
152.744441
2.38410102
0.64051863
237.656965
200.750685
10.496293
0.85703991
3.681185
04/10/2148
102.952005
2.38808930
0.63818761
240.472257
198.408095
10.294108
0.86404029
3.690426
04/18/2177
66.277732
2.38559177
0.63954270
241.180111
197.641789
10.230315
0.85990397
3.684638
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