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13557 Lievetruwant (1992 OB9)
Classification: Main-belt Asteroid          SPK-ID: 2013557
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1833051990818189 4.6369e-08  
a 2.760740951098149 1.968e-08 au
q 2.254682781443773 1.2911e-07 au
i 12.01819352377146 5.2183e-06 deg
node 115.7248047213663 2.548e-05 deg
peri 171.6824007054572 3.0456e-05 deg
M 94.93926989576022 1.4481e-05 deg
tp 2457158.644464945950
(2015-May-16.14446495)
6.8083e-05 JED
period 1675.470991025197
4.59
1.7916e-05
4.905e-08
d
yr
n .2148649555428716 2.2976e-09 deg/d
Q 3.266799120752525 2.3288e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1147  
   data-arc span      23977 days (65.65 yr)  
   first obs. used      1950-04-22  
   last obs. used      2015-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46624  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:55:38  

Additional Information
 Earth MOID = 1.23876 au 
 Jupiter MOID = 1.92393 au 
 T_jup = 3.285 
[ 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 13.3 mag n/a MPO263470  

13557 Lievetruwant           Discovered 1992 July 24 by H. Debehogne at the European Southern Observatory.
Godelieva Truwant (b. 1948), a mathematics teacher at Institute Stella Matutina in Michelbeke, Belgium, has for more than 35 years been the encouraging supporter of the astronomical career of her husband, C. Sterken.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050125/MPCPages.arcLast Updated: 2005-06-01

[ show close-approach data ]
Alternate Designations
 1992 OB9 = 1978 LM = 1989 YG7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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