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18430 Balzac (1994 AK16)
Classification: Main-belt Asteroid          SPK-ID: 2018430
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1004900371616282 3.8156e-08  
a 2.391107874366524 8.7918e-09 au
q 2.15082535521397 8.9878e-08 au
i 6.618154646487523 3.714e-06 deg
node 213.5138157282476 3.6395e-05 deg
peri 263.8713871734336 4.1457e-05 deg
M 52.21712146351817 1.9118e-05 deg
tp 2458804.612101234400
(2019-Nov-17.11210123)
7.179e-05 TDB
period 1350.508062856072
3.70
7.4485e-06
2.039e-08
d
yr
n .2665663463264835 1.4702e-09 deg/d
Q 2.631390393519078 9.6753e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1868  
   data-arc span      11211 days (30.69 yr)  
   first obs. used      1989-10-02  
   last obs. used      2020-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46696  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:22:15  

Additional Information
 Earth MOID = 1.17895 au 
 Jupiter MOID = 2.46568 au 
 T_jup = 3.516 
[ 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 14.2   n/a MPO452432  
diameter diameter 3.582 km 0.390 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.239   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18430 Balzac           Discovered 1994 Jan. 14 by F. Borngen at Tautenburg.
Honoré de Balzac (1799-1850), the creator of the French realistic novel, was a keen observer of French human society in the post-Napoleonic time. His principal work La comédie humaine is a gigantic unfinished novel cycle, for which he had planned 137 volumes.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1994 AK16 = 1998 FN99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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