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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1830278239310911 4.7065e-08  
a 2.760396117650799 2.2078e-08 AU
q 2.255166823049342 1.3241e-07 AU
i 12.01905693028605 5.3024e-06 deg
node 115.7318432554189 3.111e-05 deg
peri 171.7491077245777 3.5946e-05 deg
M 325.9735303665956 1.8055e-05 deg
tp 2457158.832449211896
(2015-May-16.33244921)
8.4261e-05 JED
period 1675.15708595067
4.59
2.0097e-05
5.502e-08
d
yr
n .2149052187518856 2.5782e-09 deg/d
Q 3.265625412252257 2.6118e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1024  
   data-arc span      23810 days (65.19 yr)  
   first obs. used      1950-04-22  
   last obs. used      2015-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45894  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:12:16  

Additional Information
 Earth MOID = 1.24079 AU 
 T_jup = 3.286 
[ 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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