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19986 (1990 KD)
Classification: Main-belt Asteroid          SPK-ID: 2019986
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2571222679831824 3.5084e-08  
a 2.539997933386049 1.2111e-08 au
q 1.886907904081232 8.6813e-08 au
i 13.8545160761605 3.8609e-06 deg
node 101.2631302900915 2.9745e-05 deg
peri 165.3320771222347 3.5033e-05 deg
M 176.092821848885 2.1212e-05 deg
tp 2458477.251362804186
(2018-Dec-24.75136280)
8.481e-05 TDB
period 1478.592407440267
4.05
1.0575e-05
2.895e-08
d
yr
n .2434748063012378 1.7414e-09 deg/d
Q 3.193087962690866 1.5225e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1392  
   data-arc span      11226 days (30.74 yr)  
   first obs. used      1990-05-19  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50098  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:10:44  

Additional Information
 Earth MOID = .872027 au 
 Jupiter MOID = 1.93812 au 
 T_jup = 3.360 
[ 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 14.3   n/a MPO395194  
diameter diameter 7.535 km 0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19986 (1990 KD)          Discovered 1990-May-20 by McNaught, R. H. at Siding Spring
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 KD = 1998 GE10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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