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JPL Small-Body Database Browser
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66861 (1999 VN31)
Classification: Main-belt Asteroid          SPK-ID: 2066861
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2908041756159638 6.2827e-08  
a 2.749376427519335 1.4471e-08 au
q 1.949846282056611 1.7718e-07 au
i 1.799517469463825 5.7848e-06 deg
node 210.2002614002031 0.00015698 deg
peri 168.3064195556895 0.00015724 deg
M 203.090993303306 8.2564e-06 deg
tp 2459726.263472469134
(2022-May-26.76347247)
4.1369e-05 TDB
period 1665.136091224731
4.56
1.3146e-05
3.599e-08
d
yr
n .2161985449100529 1.7069e-09 deg/d
Q 3.548906572982059 1.8679e-08 au
  Orbit Determination Parameters
   # obs. used (total)      654  
   data-arc span      12245 days (33.52 yr)  
   first obs. used      1985-09-20  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54328  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:04:43  

Additional Information
 Earth MOID = .95206 au 
 Jupiter MOID = 1.91629 au 
 T_jup = 3.283 
[ 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 MPO436249  

66861 (1999 VN31)          Discovered 1999-Nov-03 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 VN31 = 1985 SG4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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