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20682 (1999 VP23)
Classification: Main-belt Asteroid          SPK-ID: 2020682
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2084165881982519 3.278e-08  
a 2.677239225672504 1.3425e-08 au
q 2.119258160467311 9.2745e-08 au
i 13.58167461320367 9.8301e-07 deg
node 76.00781220009237 5.1719e-06 deg
peri 271.7108059886021 6.538e-06 deg
M 331.5762608021525 5.7762e-06 deg
tp 2459326.830409794886
(2021-Apr-22.33040980)
2.6259e-05 TDB
period 1600.03394379593
4.38
1.2035e-05
3.295e-08
d
yr
n .2249952267549612 1.6924e-09 deg/d
Q 3.235220290877697 1.6223e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1762  
   data-arc span      15649 days (42.84 yr)  
   first obs. used      1977-11-11  
   last obs. used      2020-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44517  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:26:28  

Additional Information
 Earth MOID = 1.16339 au 
 Jupiter MOID = 2.35375 au 
 T_jup = 3.307 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.19   n/a E2021B10  
diameter diameter 6.627 km 0.334 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.278   0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20682 (1999 VP23)          Discovered 1999-Nov-14 by Juels, C. W. at Fountain Hills
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 VP23 = 1977 VB1 = 1998 KY7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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