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12162 Bilderdijk (2145 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2012162
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1637924991121272 8.7751e-08  
a 2.642806683943876 2.0471e-08 AU
q 2.209934772510475 2.2603e-07 AU
i 13.45113736668193 9.4402e-06 deg
node 188.0982243824499 2.6331e-05 deg
peri 198.1671723076142 3.3194e-05 deg
M 148.9811423933947 2.2001e-05 deg
tp 2456151.080505909841
(2012-Aug-11.58050591)
9.2604e-05 JED
period 1569.265842082995
4.30
1.8233e-05
4.992e-08
d
yr
n .2294066373879311 2.6654e-09 deg/d
Q 3.075678595377276 2.3824e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      582  
   data-arc span      14866 days (40.70 yr)  
   first obs. used      1973-09-19  
   last obs. used      2014-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59353  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:49:02  

Additional Information
 Earth MOID = 1.2153 AU 
 T_jup = 3.336 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO256954  

12162 Bilderdijk           Discovered 1973 Sept. 29 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Willem Bilderdijk (1756-1831) was a Dutch poet and scholar who composed two didactic astronomical poems, Starrenkennis (1794) and De Starrenhemel (1807). These described the celestial sphere, the Milky Way and the constellations. The name was suggested by R. H. van Gent.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100527/MPCPages.arcLast Updated: 2010-12-06

Alternate Designations
 2145 T-2 = 1988 DZ1 = 1990 RO9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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