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146684 (2001 VN20)
Classification: Main-belt Asteroid          SPK-ID: 2146684
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 .08429591285412838 9.3601e-08  
a 2.557978725236156 1.2247e-08 au
q 2.342351573530935 2.4168e-07 au
i 1.818161356408193 4.1474e-06 deg
node 252.8977677408031 0.00021207 deg
peri 244.3076043872991 0.00022103 deg
M 116.5788885370509 5.7679e-05 deg
tp 2458516.593752950875
(2019-Feb-02.09375295)
0.00023999 TDB
period 1494.320722420674
4.09
1.0732e-05
2.938e-08
d
yr
n .2409121379357106 1.7302e-09 deg/d
Q 2.773605876941377 1.328e-08 au
  Orbit Determination Parameters
   # obs. used (total)      928  
   data-arc span      6415 days (17.56 yr)  
   first obs. used      2001-10-21  
   last obs. used      2019-05-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54401  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:38:51  

Additional Information
 Earth MOID = 1.35662 au 
 Jupiter MOID = 2.24421 au 
 T_jup = 3.431 
[ 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 15.5   n/a MPO436736  
diameter diameter 2.488 km 0.594 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.197   0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146684 (2001 VN20)          Discovered 2001-Nov-09 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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