Catalogue of the Solar System Small Bodies Orbital Evolution
Catalogue of the Solar System Small Bodies Orbital Evolution
Русский
English
Site
Asteroids catalogue
Comets catalogue
Information
Asteroid search
Summary information
Asteroids selection
Closest approaches
Approaches archive
Diagram 2D
Histogram
Impact probability
Potential hazardous
Asteroid information
General data
Initial data
Approaches
Asteroid orbit evolution
Tables
Graphs
3D animation
Calculation
Asteroid General Data
2021 AA
4
General information
Preliminary designation
2021 AA
4
Group
Apollo
Absolute magnitude
24.97
Approximate diameter (m)
27
Approximate mass (kg)
3.58·10
7
Number of observations
35
Arc length (days)
10
Approaches
No approaches found
Orbit initial data
Date of initial data
06/09/2026
M
– mean anomaly (degrees)
164.235142
a
– orbit major semiaxis (astronomical units)
1.37121100
e
– orbit eccentricity
0.33821700
ω
– orbit ascending node-perihelion angle (degrees)
137.271984
Ω
– longitude of orbit ascending node (degrees)
268.900404
i
– orbit inclination to the ecliptic plane (degrees)
5.285620
Details...
Orbital evolution
Date
M
a
e
ω
Ω
i
q
P
01/13/1829
337.104943
1.39348902
0.34508197
136.941207
271.206345
5.536235
0.91262109
1.644962
01/21/1858
252.494475
1.37417700
0.33948795
135.314479
270.856593
5.263400
0.90766046
1.610885
01/29/1887
262.465436
1.37300760
0.33918796
135.646784
270.515470
5.271071
0.90729996
1.608830
02/07/1916
277.275854
1.37176306
0.33860048
136.024261
270.129853
5.276502
0.90728343
1.606643
02/14/1945
295.811529
1.37204587
0.33865441
136.384903
269.884631
5.279049
0.90739649
1.607139
02/22/1974
322.707781
1.37183257
0.33841584
136.684127
269.487940
5.279296
0.90758270
1.606765
03/02/2003
343.951651
1.37147795
0.33826587
137.064407
269.233030
5.281192
0.90755376
1.606142
03/09/2032
12.932309
1.37150318
0.33825883
137.386553
268.846453
5.287217
0.90758012
1.606186
03/17/2061
38.367848
1.37073603
0.33803656
137.802756
268.515103
5.289754
0.90737714
1.604839
03/25/2090
62.151494
1.37565421
0.34010524
138.428027
268.070135
5.234459
0.90778701
1.613484
04/03/2119
58.712458
1.37538151
0.33989279
138.693898
267.807760
5.241095
0.90789925
1.613004
04/10/2148
48.987678
1.37680190
0.34051181
139.376534
267.364074
5.234591
0.90798459
1.615503
04/18/2177
31.228009
1.37769170
0.34067542
139.850846
267.002583
5.235528
0.90834599
1.617069
Detailed table...
Graphs...
3D animation...
Calculation on the date...
Return to search
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