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46781 (1998 HH86)
Classification: Main-belt Asteroid          SPK-ID: 2046781
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08866541217566745 5.1287e-08  
a 2.231930810272908 9.4734e-09 au
q 2.034035745032489 1.1394e-07 au
i 6.033631978306461 7.3757e-06 deg
node 216.6878590651413 4.2319e-05 deg
peri 43.17272084079953 5.8618e-05 deg
M 188.1162982219134 4.2796e-05 deg
tp 2459582.002673093857
(2022-Jan-02.50267309)
0.00014574 TDB
period 1217.922119131817
3.33
7.7542e-06
2.123e-08
d
yr
n .2955854026664875 1.8819e-09 deg/d
Q 2.429825875513327 1.0313e-08 au
  Orbit Determination Parameters
   # obs. used (total)      462  
   data-arc span      7950 days (21.77 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62243  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:34:48  

Additional Information
 Earth MOID = 1.02394 au 
 Jupiter MOID = 2.60037 au 
 T_jup = 3.629 
[ 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 16.4   n/a MPO449296  

46781 (1998 HH86)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HH86 = 1999 UR32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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