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 XA
4
General information
Preliminary designation
2021 XA
4
Group
Apollo
Absolute magnitude
26.54
Approximate diameter (m)
13
Approximate mass (kg)
4.09·10
6
Number of observations
20
Arc length (days)
3
Approaches
No approaches found
Orbit initial data
Date of initial data
06/09/2026
M
– mean anomaly (degrees)
161.663817
a
– orbit major semiaxis (astronomical units)
1.22283700
e
– orbit eccentricity
0.44985500
ω
– orbit ascending node-perihelion angle (degrees)
265.698250
Ω
– longitude of orbit ascending node (degrees)
75.455366
i
– orbit inclination to the ecliptic plane (degrees)
12.116930
Details...
Orbital evolution
Date
M
a
e
ω
Ω
i
q
P
01/13/1829
162.741473
1.22205639
0.45046628
263.668833
77.052698
12.032981
0.67156119
1.350944
01/21/1858
324.062997
1.22475016
0.45095529
264.079655
76.828084
12.041536
0.67244260
1.355414
01/29/1887
112.010614
1.22472948
0.45115899
264.325315
76.610331
12.043282
0.67218176
1.355379
02/07/1916
263.830248
1.22345471
0.45062320
264.571022
76.376830
12.054999
0.67213763
1.353264
02/14/1945
70.067233
1.22216428
0.45030284
264.830102
76.149333
12.048294
0.67182023
1.351123
02/22/1974
248.742581
1.22110261
0.45002254
265.037277
75.910089
12.072159
0.67157891
1.349363
03/02/2003
76.984674
1.22094482
0.44999035
265.348963
75.681521
12.077418
0.67153143
1.349102
03/09/2032
252.659290
1.22249633
0.44974149
265.768572
75.410315
12.117651
0.67268902
1.351674
03/17/2061
62.616721
1.22218627
0.44946656
265.959472
75.203811
12.138403
0.67285441
1.351160
03/25/2090
227.482206
1.22353079
0.44989442
266.309115
74.945401
12.143373
0.67307112
1.353390
04/03/2119
20.858400
1.22451925
0.45020734
266.646636
74.707545
12.153391
0.67323170
1.355030
04/10/2148
169.465881
1.22427044
0.45016366
266.940152
74.482467
12.171066
0.67314837
1.354617
04/18/2177
327.395939
1.22339185
0.44986379
267.123134
74.283789
12.170271
0.67303215
1.353159
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