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385617 (2005 ML21)
Classification: Main-belt Asteroid          SPK-ID: 2385617
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1751419133238163 5.9856e-08  
a 2.269823418048896 1.4751e-08 au
q 1.872282201704608 1.2896e-07 au
i 9.830118231068456 6.0278e-06 deg
node 121.8338986111676 3.9529e-05 deg
peri 213.5309443651787 4.6471e-05 deg
M 162.3190614526759 2.496e-05 deg
tp 2458637.311786098494
(2019-Jun-02.81178610)
8.4277e-05 TDB
period 1249.0693033218
3.42
1.2176e-05
3.334e-08
d
yr
n .2882145922909232 2.8096e-09 deg/d
Q 2.667364634393184 1.7335e-08 au
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      5740 days (15.72 yr)  
   first obs. used      2005-06-30  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52974  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 12:29:56  

Additional Information
 Earth MOID = .867665 au 
 Jupiter MOID = 2.69542 au 
 T_jup = 3.574 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.81   n/a MPCxxxxx  

385617 (2005 ML21)          Discovered 2005-Jun-30 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-02-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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