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109896 (2001 SD18)
Classification: Main-belt Asteroid          SPK-ID: 2109896
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1371007950615299 6.5208e-08  
a 2.556070958236749 1.5455e-08 au
q 2.205631597628804 1.7111e-07 au
i 14.21982129497777 6.8853e-06 deg
node 15.54737778084245 1.3134e-05 deg
peri 184.0453276924336 2.0214e-05 deg
M 2.964136683623153 1.3098e-05 deg
tp 2458988.209953920790
(2020-May-18.70995392)
5.43e-05 TDB
period 1492.649314372252
4.09
1.3538e-05
3.707e-08
d
yr
n .2411819015583051 2.1874e-09 deg/d
Q 2.906510318844694 1.7574e-08 au
  Orbit Determination Parameters
   # obs. used (total)      967  
   data-arc span      21792 days (59.66 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51801  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:33:58  

Additional Information
 Earth MOID = 1.2039 au 
 Jupiter MOID = 2.05129 au 
 T_jup = 3.382 
[ 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 15.1   n/a MPO381928  

109896 (2001 SD18)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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