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Asteroid General Data
General information
| Preliminary designation | 1998 KJ9
| | Number | 152680
| | Group | Apollo
| | Absolute magnitude | 19.40
| | Approximate diameter (m) | 350
| | Approximate mass (kg) | 7.87·1010
| | Number of observations | 190
| | Arc length (days) | 7706
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Approaches
Date | Object | r, AU | r, km
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| 12/29/1889 06:00:00 PM | Earth | 0.006046 | 904 538
| | 12/29/1889 07:12:00 PM | Moon | 0.008469 | 1 266 879
| | 12/31/1914 12:00:00 AM | Earth | 0.001561 | 233 461
| | 12/31/1914 04:48:00 PM | Moon | 0.001839 | 275 116
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Details...
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Orbit initial data
| Date of initial data | 01/08/2013
| | M – mean anomaly (degrees) | 103.913428
| | a – orbit major semiaxis (astronomical units) | 1.447724
| | e – orbit eccentricity | 0.639685
| | ω – orbit ascending node-perihelion angle (degrees) | 259.936951
| | Ω – longitude of orbit ascending node (degrees) | 98.700721
| | i – orbit inclination to the ecliptic plane (degrees) | 10.933858
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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 | 311.384120 | 1.47333028 | 0.64156952 | 257.640699 | 101.749053 | 10.974240 | 0.52808648 | 653.107022
| | 01/13/1829 | 34.860488 | 1.47538971 | 0.64181707 | 258.285716 | 101.275705 | 10.971833 | 0.52845940 | 654.476871
| | 01/21/1858 | 105.511586 | 1.47662933 | 0.64216456 | 258.651863 | 100.883724 | 10.974078 | 0.52839031 | 655.301884
| | 01/29/1887 | 163.315685 | 1.47920629 | 0.64265091 | 259.192889 | 100.452942 | 10.957658 | 0.52859302 | 657.018041
| | 02/07/1916 | 255.657075 | 1.44863206 | 0.63973367 | 258.532047 | 100.043683 | 10.954362 | 0.52189335 | 636.753466
| | 02/14/1945 | 126.365868 | 1.44877722 | 0.63984307 | 258.924456 | 99.659535 | 10.949980 | 0.52178715 | 636.849177
| | 02/22/1974 | 357.296620 | 1.44888920 | 0.63985611 | 259.380314 | 99.243590 | 10.939981 | 0.52180859 | 636.923013
| | 03/02/2003 | 227.742690 | 1.44814272 | 0.63983625 | 259.741590 | 98.856820 | 10.934885 | 0.52156852 | 636.430857
| | 03/09/2032 | 104.298838 | 1.44781865 | 0.63960259 | 260.231962 | 98.420721 | 10.926457 | 0.52179009 | 636.217234
| | 03/17/2061 | 339.059391 | 1.44808202 | 0.63959672 | 260.652952 | 98.041280 | 10.922910 | 0.52189350 | 636.390845
| | 03/25/2090 | 215.348151 | 1.44791092 | 0.63973227 | 261.147800 | 97.604070 | 10.912922 | 0.52163558 | 636.278055
| | 04/03/2119 | 85.556925 | 1.44931116 | 0.63999785 | 261.565779 | 97.231035 | 10.897589 | 0.52175514 | 637.201272
| | 04/10/2148 | 314.898075 | 1.44854903 | 0.63988699 | 262.077528 | 96.766037 | 10.897900 | 0.52164136 | 636.698726
| | 04/18/2177 | 188.824818 | 1.44849913 | 0.63991498 | 262.478732 | 96.407818 | 10.890886 | 0.52158284 | 636.665822
| | 04/27/2206 | 70.229085 | 1.44659352 | 0.63995840 | 262.857942 | 96.008430 | 10.887025 | 0.52083385 | 635.409865
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Detailed table...
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Graphs...
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