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100859 (1998 HR46)
Classification: Main-belt Asteroid          SPK-ID: 2100859
[ 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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1680062929712235 4.785e-08  
a 2.725612974925232 1.8562e-08 au
q 2.267692842933775 1.3214e-07 au
i 11.60982470140467 5.6778e-06 deg
node 36.7375843322589 2.4161e-05 deg
peri 221.6175649339662 3.0218e-05 deg
M 290.4776185318629 2.0034e-05 deg
tp 2459317.907254373447
(2021-Apr-13.40725437)		 9.2579e-05 TDB
period 1643.594611712352
4.50		 1.679e-05
4.597e-08		 d
yr
n .2190321125626835 2.2375e-09 deg/d
Q 3.183533106916688 2.1681e-08 au
   Orbit Determination Parameters
   # obs. used (total)      641  
   data-arc span      8106 days (22.19 yr)  
   first obs. used      1998-03-29  
   last obs. used      2020-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55982  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:51  

Additional Information
 Earth MOID = 1.26776 au 
 Jupiter MOID = 1.90702 au 
 T_jup = 3.307 
[ 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 15.2   n/a MPO426633  

100859 (1998 HR46)          Discovered 1998-Apr-20 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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