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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1830278217045996 4.7534e-08  
a 2.760396122735335 2.5596e-08 AU
q 2.255166833349264 1.3552e-07 AU
i 12.01905680887391 5.3052e-06 deg
node 115.731852682656 3.4951e-05 deg
peri 171.7491024436391 4.0365e-05 deg
M 325.9735249007787 2.2803e-05 deg
tp 2457158.832475082976
(2015-May-16.33247508)
0.00010698 JED
period 1675.157090579026
4.59
2.3299e-05
6.379e-08
d
yr
n .2149052181581157 2.989e-09 deg/d
Q 3.265625412121406 3.028e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      970  
   data-arc span      23436 days (64.16 yr)  
   first obs. used      1950-04-22  
   last obs. used      2014-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46472  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:30:46  

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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