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 ER
2
General information
Preliminary designation
2021 ER
2
Group
Amor
Absolute magnitude
25.43
Approximate diameter (m)
22
Approximate mass (kg)
1.90·10
7
Number of observations
39
Arc length (days)
9
Approaches
No approaches found
Orbit initial data
Date of initial data
06/09/2026
M
– mean anomaly (degrees)
192.602521
a
– orbit major semiaxis (astronomical units)
1.28638200
e
– orbit eccentricity
0.19706200
ω
– orbit ascending node-perihelion angle (degrees)
214.367421
Ω
– longitude of orbit ascending node (degrees)
349.601266
i
– orbit inclination to the ecliptic plane (degrees)
22.565083
Details...
Orbital evolution
Date
M
a
e
ω
Ω
i
q
P
01/13/1829
103.445265
1.28655947
0.19601225
212.920306
350.440519
22.614182
1.03437806
1.459303
01/21/1858
60.571885
1.28696620
0.19647679
213.088477
350.323276
22.606051
1.03410721
1.459995
01/29/1887
18.847132
1.28655376
0.19632150
213.329185
350.199190
22.600457
1.03397560
1.459293
02/07/1916
336.468962
1.28669258
0.19667261
213.560687
350.071848
22.593124
1.03363539
1.459529
02/14/1945
295.389963
1.28651895
0.19665116
213.728277
349.952505
22.586418
1.03352351
1.459234
02/22/1974
253.399633
1.28658645
0.19680962
213.961787
349.826633
22.579370
1.03337386
1.459349
03/02/2003
212.439569
1.28676157
0.19709729
214.154987
349.700008
22.570908
1.03314435
1.459647
03/09/2032
171.189543
1.28637293
0.19706235
214.376615
349.583949
22.563725
1.03287726
1.458985
03/17/2061
130.752666
1.28670097
0.19732375
214.594638
349.454710
22.556023
1.03280431
1.459544
03/25/2090
90.097091
1.28634190
0.19734711
214.775519
349.341283
22.549917
1.03248605
1.458933
04/03/2119
49.790360
1.28662683
0.19771758
214.991397
349.215473
22.541116
1.03223808
1.459417
04/10/2148
8.896776
1.28670132
0.19781407
215.177528
349.094213
22.536312
1.03217370
1.459544
04/18/2177
327.455447
1.28667971
0.19810315
215.355836
348.974017
22.528938
1.03178441
1.459507
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