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19986 (1990 KD)
Classification: Main-belt Asteroid          SPK-ID: 2019986
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .256853022473383 7.8187e-08  
a 2.539418636468766 2.4326e-08 AU
q 1.887161284366526 2.0398e-07 AU
i 13.85054321304864 6.6376e-06 deg
node 101.2888036048788 5.4344e-05 deg
peri 165.4156832192358 6.535e-05 deg
M 311.4515394021865 4.1864e-05 deg
tp 2456999.830081098695
(2014-Dec-08.33008110)
0.00017358 JED
period 1478.086602786371
4.05
2.1239e-05
5.815e-08
d
yr
n .2435581239430467 3.4997e-09 deg/d
Q 3.191675988571006 3.0574e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      661  
   data-arc span      8799 days (24.09 yr)  
   first obs. used      1990-05-19  
   last obs. used      2014-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5681  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:43:58  

Additional Information
 Earth MOID = .873683 AU 
 T_jup = 3.360 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO253503  

19986 (1990 KD)          Discovered 1990-May-20 by McNaught, R. H. at Siding Spring (413)
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

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