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
2009 HD
21
(744281)
General information
Preliminary designation
2009 HD
21
Number
744281
Group
Apollo
Absolute magnitude
18.24
Approximate diameter (m)
600
Approximate mass (kg)
3.91·10
11
Number of observations
215
Arc length (days)
5406
Approaches
No approaches found
Orbit initial data
Date of initial data
06/09/2026
M
– mean anomaly (degrees)
231.981900
a
– orbit major semiaxis (astronomical units)
2.76591700
e
– orbit eccentricity
0.68979400
ω
– orbit ascending node-perihelion angle (degrees)
134.448662
Ω
– longitude of orbit ascending node (degrees)
178.949124
i
– orbit inclination to the ecliptic plane (degrees)
18.719295
Details...
Orbital evolution
Date
M
a
e
ω
Ω
i
q
P
01/13/1829
296.337403
2.77595862
0.69557331
118.177975
195.374646
15.440817
0.84507590
4.625089
01/21/1858
39.991432
2.77154408
0.69658165
121.600379
191.916785
15.980052
0.84093733
4.614061
01/29/1887
152.772711
2.76417996
0.69730750
123.051489
190.454823
16.232169
0.83669653
4.595683
02/07/1916
253.858635
2.77837269
0.69114645
125.795843
187.690322
16.642481
0.85811027
4.631124
02/14/1945
2.228530
2.75818626
0.69558463
128.947792
184.546638
17.389204
0.83963428
4.580744
02/22/1974
115.350374
2.76790097
0.69250364
129.729687
183.761659
17.511555
0.85111947
4.604966
03/02/2003
212.745143
2.77343671
0.68949835
133.386412
179.912911
18.344197
0.86115666
4.618788
03/09/2032
323.066901
2.75928321
0.69149159
134.653838
178.837334
18.800322
0.85126206
4.583477
03/17/2061
68.353583
2.77544133
0.68676281
135.466513
178.060939
18.917863
0.86937144
4.623796
03/25/2090
160.457397
2.76776437
0.68266247
139.180663
174.344558
20.160912
0.87831549
4.604625
04/03/2119
271.455018
2.76068315
0.68366536
139.742976
173.816678
20.370244
0.87329971
4.586965
04/10/2148
18.253266
2.77969727
0.67279538
141.729143
171.820436
20.974472
0.90952978
4.634436
04/18/2177
116.977779
2.76359751
0.67568029
143.426462
170.261532
21.714314
0.89628914
4.594231
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