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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1001488388924696 2.2472e-08  
a 2.391363181757659 8.407e-09 au
q 2.151870935734427 5.2997e-08 au
i 6.617711851997021 9.0115e-07 deg
node 213.5045207521357 7.1345e-06 deg
peri 263.8701509494756 8.1689e-06 deg
M 157.8146828097593 5.016e-06 deg
tp 2458804.377395846537
(2019-Nov-16.87739585)
1.8341e-05 TDB
period 1350.724366706799
3.70
7.1228e-06
1.95e-08
d
yr
n .2665236586186091 1.4055e-09 deg/d
Q 2.63085542778089 9.249e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1924  
   data-arc span      11585 days (31.72 yr)  
   first obs. used      1989-10-02  
   last obs. used      2021-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46412  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:00:16  

Additional Information
 Earth MOID = 1.18041 au 
 Jupiter MOID = 2.46486 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 14.23   n/a E2021B10  
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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