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55543 Nemeghaire (2001 XN16)
Classification: Main-belt Asteroid          SPK-ID: 2055543
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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1609234782642656 7.3843e-08  
a 2.686899656326651 4.0435e-08 AU
q 2.254514417883506 2.1784e-07 AU
i 13.88697976312887 6.9381e-06 deg
node 94.23892404645862 2.953e-05 deg
peri 197.2271697088722 4.152e-05 deg
M 68.14666232821462 2.3326e-05 deg
tp 2456495.978691190858
(2013-Jul-22.47869119)
0.00010729 JED
period 1608.701988122202
4.40
3.6314e-05
9.942e-08
d
yr
n .2237829024008475 5.0515e-09 deg/d
Q 3.119284894769796 4.6942e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      5232 days (14.32 yr)  
   first obs. used      1999-03-21  
   last obs. used      2013-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56187  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 09:08:04  

Additional Information
 Earth MOID = 1.24106 AU 
 T_jup = 3.314 
[ 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 14.3 mag n/a MPO266205  

55543 Nemeghaire           Discovered 2001 Dec. 8 by H. M. J. Boffin at Uccle.
Jean Nemeghaire (b. 1949) has been an assistant at the Royal Meteorological Institute of Belgium since 1983. From 1979 to 1983 he was the discoverer's physics teacher and has greatly contributed to his vocation as an astrophysicist.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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