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46851 (1998 QN39)
Classification: Main-belt Asteroid          SPK-ID: 2046851
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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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 .1964736822258771 5.2893e-08  
a 2.464339052234797 1.4351e-08 au
q 1.980161284389198 1.2714e-07 au
i 2.773300346941 4.5426e-06 deg
node 49.6533293565915 8.6421e-05 deg
peri 278.9837939295542 8.8533e-05 deg
M 229.5844934415929 2.761e-05 deg
tp 2459512.389059654077
(2021-Oct-24.88905965)
0.00011211 TDB
period 1413.022625441686
3.87
1.2343e-05
3.379e-08
d
yr
n .2547729905509973 2.2255e-09 deg/d
Q 2.948516820080395 1.7171e-08 au
  Orbit Determination Parameters
   # obs. used (total)      935  
   data-arc span      7932 days (21.72 yr)  
   first obs. used      1998-07-31  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58765  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:35:34  

Additional Information
 Earth MOID = .971306 au 
 Jupiter MOID = 2.40372 au 
 T_jup = 3.459 
[ 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 15.4   n/a MPO266176  

46851 (1998 QN39)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

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