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101818 (1999 JD13)
Classification: Mars-crossing Asteroid          SPK-ID: 2101818
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 .2671139613265877 4.3339e-08  
a 2.191785643281681 8.6434e-09 au
q 1.606329097725968 9.7816e-08 au
i 5.673813329543702 6.4177e-06 deg
node 219.9648866126803 4.0831e-05 deg
peri 54.37738982061187 4.2934e-05 deg
M 187.5448492503492 1.6796e-05 deg
tp 2459568.265779333203
(2021-Dec-19.76577933)
5.7645e-05 TDB
period 1185.210645616897
3.24
7.0109e-06
1.919e-08
d
yr
n .3037434749099992 1.7967e-09 deg/d
Q 2.777242188837394 1.0952e-08 au
  Orbit Determination Parameters
   # obs. used (total)      455  
   data-arc span      7563 days (20.71 yr)  
   first obs. used      1999-05-14  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55733  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:27:03  

Additional Information
 Earth MOID = .598707 au 
 Jupiter MOID = 2.35815 au 
 T_jup = 3.619 
[ 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 16.6   n/a MPO436476  

101818 (1999 JD13)          Discovered 1999-May-14 by Tholen, D. J., Whiteley, R. at Mauna Kea
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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