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20679 (1999 VU9)
Classification: Outer Main-belt Asteroid          SPK-ID: 2020679
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08668688839018494 2.0258e-08  
a 3.222768806301181 1.7458e-08 au
q 2.943397006481981 6.7706e-08 au
i 16.79720491858448 9.8757e-07 deg
node 134.1111436016241 3.0383e-06 deg
peri 302.9432094074596 1.3754e-05 deg
M 196.8558404400596 1.7453e-05 deg
tp 2460158.159638769407
(2023-Aug-01.65963877)
0.0001057 TDB
period 2113.207551449736
5.79
1.7171e-05
4.701e-08
d
yr
n .1703571425121148 1.3842e-09 deg/d
Q 3.502140606120381 1.8971e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1947  
   data-arc span      25959 days (71.07 yr)  
   first obs. used      1950-02-17  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .446  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:26:26  

Additional Information
 Earth MOID = 1.99558 au 
 Jupiter MOID = 1.70919 au 
 T_jup = 3.116 
[ 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 12.74   n/a E2021B10  
diameter diameter 17.101 km 0.259 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20679 (1999 VU9)          Discovered 1999-Nov-09 by Juels, C. W. at Fountain Hills
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 VU9 = 1998 OU4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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