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Asteroid General Data
General information
| Preliminary designation | 2011 MD
| | Group | Amor
| | Absolute magnitude | 27.98
| | Approximate diameter (m) | 7
| | Approximate mass (kg) | 5.60·105
| | Number of observations | 1503
| | Arc length (days) | 74
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Approaches
Date | Object | r, AU | r, km
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| 07/08/1917 09:36:00 PM | Moon | 0.005619 | 840 659
| | 07/11/1917 04:48:00 PM | Earth | 0.003318 | 496 411
| | 06/27/2011 04:48:00 PM | Earth | 0.000118 | 17 713
| | 06/28/2011 07:12:00 AM | Moon | 0.002044 | 305 754
| | 06/08/2153 12:00:00 AM | Earth | 0.006183 | 925 008
| | 06/09/2153 07:12:00 PM | Moon | 0.004526 | 677 114
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Details...
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Orbit initial data
| Date of initial data | 05/27/2017
| | M – mean anomaly (degrees) | 159.669528
| | a – orbit major semiaxis (astronomical units) | 1.056222
| | e – orbit eccentricity | 0.037087
| | ω – orbit ascending node-perihelion angle (degrees) | 5.985297
| | Ω – longitude of orbit ascending node (degrees) | 271.607446
| | i – orbit inclination to the ecliptic plane (degrees) | 2.445471
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Details...
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Orbital evolution
Date | M | a | e | ω | Ω | i | q | P
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| 01/05/1800 | 321.023913 | 0.96198673 | 0.05949182 | 121.700578 | 328.430336 | 2.473160 | 0.90475639 | 344.578201
| | 01/13/1829 | 184.623227 | 0.96473649 | 0.05716873 | 119.918983 | 329.563169 | 2.483689 | 0.90958373 | 346.056681
| | 01/21/1858 | 59.510530 | 0.96872256 | 0.05386226 | 116.525739 | 331.779463 | 2.507465 | 0.91654497 | 348.203635
| | 01/29/1887 | 224.754932 | 0.96750045 | 0.05464521 | 116.048631 | 331.561874 | 2.513056 | 0.91463118 | 347.544917
| | 02/07/1916 | 27.457336 | 0.96895101 | 0.05343879 | 115.235968 | 331.986165 | 2.520057 | 0.91717144 | 348.326817
| | 02/14/1945 | 221.760304 | 1.01882702 | 0.01522930 | 104.715676 | 268.428831 | 2.723869 | 1.00331100 | 375.564785
| | 02/22/1974 | 266.800429 | 1.02407515 | 0.01642854 | 100.554822 | 257.148072 | 2.708785 | 1.00725109 | 378.470403
| | 03/02/2003 | 273.970298 | 1.02423480 | 0.01600335 | 99.261642 | 253.324015 | 2.696697 | 1.00784362 | 378.558911
| | 03/09/2032 | 20.249851 | 1.05704767 | 0.03769657 | 271.349251 | 5.724049 | 2.442719 | 1.01720059 | 396.895374
| | 03/17/2061 | 23.413606 | 1.03792981 | 0.02182672 | 266.817166 | 16.851534 | 2.605285 | 1.01527520 | 386.176779
| | 03/25/2090 | 169.049877 | 1.04957180 | 0.03186122 | 261.829353 | 16.198205 | 2.483220 | 1.01613116 | 392.692323
| | 04/03/2119 | 164.580447 | 1.05575221 | 0.03683906 | 258.730350 | 18.820833 | 2.438545 | 1.01685930 | 396.165983
| | 04/10/2148 | 69.001477 | 1.05615174 | 0.03719760 | 258.171027 | 18.388280 | 2.437995 | 1.01686543 | 396.390882
| | 04/18/2177 | 353.854410 | 1.01983072 | 0.01544705 | 252.701394 | 73.133174 | 2.506912 | 1.00407734 | 376.119903
| | 04/27/2206 | 23.535272 | 1.02543581 | 0.01674526 | 247.196892 | 64.049481 | 2.524906 | 1.00826463 | 379.224949
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Detailed table...
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Graphs...
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Calculation on the date...
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