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100886 (1998 HR108)
Classification: Main-belt Asteroid          SPK-ID: 2100886
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1894940050881619 4.2795e-08  
a 2.321967798174778 1.1471e-08 au
q 1.881968820412899 1.0056e-07 au
i 7.400373605298168 4.8627e-06 deg
node 102.7397172469081 3.9678e-05 deg
peri 162.8255195504018 4.2264e-05 deg
M 48.84629046815825 1.6855e-05 deg
tp 2458825.147564376131
(2019-Dec-07.64756438)		 5.986e-05 TDB
period 1292.357643120182
3.54		 9.5764e-06
2.622e-08		 d
yr
n .2785606615292961 2.0641e-09 deg/d
Q 2.761966775936657 1.3644e-08 au
   Orbit Determination Parameters
   # obs. used (total)      700  
   data-arc span      7736 days (21.18 yr)  
   first obs. used      1998-03-24  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58871  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:12:53  

Additional Information
 Earth MOID = .867411 au 
 Jupiter MOID = 2.33141 au 
 T_jup = 3.542 
[ 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 15.8   n/a MPO325158  

100886 (1998 HR108)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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