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100820 (1998 FM139)
Classification: Main-belt Asteroid          SPK-ID: 2100820
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08258006073712233 4.6151e-08  
a 2.365967416101908 1.0314e-08 au
q 2.17058568317816 1.0634e-07 au
i 5.453614881709158 5.2667e-06 deg
node 359.8815574545746 3.7745e-05 deg
peri 202.3559452786347 4.6145e-05 deg
M 23.44206134077785 2.4884e-05 deg
tp 2458913.942468387617
(2020-Mar-05.44246839)
9.202e-05 TDB
period 1329.264987727559
3.64
8.692e-06
2.38e-08
d
yr
n .2708263614280828 1.7709e-09 deg/d
Q 2.561349149025656 1.1166e-08 au
  Orbit Determination Parameters
   # obs. used (total)      651  
   data-arc span      10069 days (27.57 yr)  
   first obs. used      1992-10-03  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .603  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:56:07  

Additional Information
 Earth MOID = 1.16881 au 
 Jupiter MOID = 2.40131 au 
 T_jup = 3.537 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO432535  

100820 (1998 FM139)          Discovered 1998-Mar-28 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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