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9903 Leonhardt (1997 NA1)
Classification: Main-belt Asteroid          SPK-ID: 2009903
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2407542038771229 5.4406e-08  
a 3.081634842822467 2.5755e-08 au
q 2.339718299598741 1.6024e-07 au
i 1.685131367180297 5.8276e-06 deg
node 196.0269949314105 0.00019252 deg
peri 139.1345469154217 0.00019319 deg
M 167.4443530659 1.6092e-05 deg
tp 2456681.451996864176
(2014-Jan-23.95199686)
8.127e-05 JED
period 1975.923792417671
5.41
2.4771e-05
6.782e-08
d
yr
n .1821932613906716 2.2841e-09 deg/d
Q 3.823551386046193 3.1956e-08 au
  Orbit Determination Parameters
   # obs. used (total)      877  
   data-arc span      14423 days (39.49 yr)  
   first obs. used      1976-10-22  
   last obs. used      2016-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5163  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:06:43  

Additional Information
 Earth MOID = 1.32957 au 
 Jupiter MOID = 1.56519 au 
 T_jup = 3.182 
[ 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 14.5 mag n/a MPO324400  

9903 Leonhardt           Discovered 1997 July 4 by P. G. Comba at Prescott.
Named for Gustav Leonhardt (b. 1928), eminent Dutch harpsichordist, conductor and pedagogue. As a harpsichordist, he has made many concert tours of Europe and North America and recorded a large number of baroque works.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 1997 NA1 = 1976 UG6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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