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85559 Villecroze (1998 AC5)
Classification: Main-belt Asteroid          SPK-ID: 2085559
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08745443927839137 4.6922e-08  
a 2.654744315198262 1.8029e-08 au
q 2.422575139685101 1.244e-07 au
i 10.06816892405231 4.8954e-06 deg
node 101.5583293367602 2.8413e-05 deg
peri 148.8515743799253 4.098e-05 deg
M 290.0508632692867 3.1076e-05 deg
tp 2459307.481592279133
(2021-Apr-02.98159228)
0.00013756 TDB
period 1579.910466171108
4.33
1.6094e-05
4.406e-08
d
yr
n .2278610134613864 2.3212e-09 deg/d
Q 2.886913490711423 1.9606e-08 au
  Orbit Determination Parameters
   # obs. used (total)      654  
   data-arc span      8150 days (22.31 yr)  
   first obs. used      1998-01-05  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61017  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:37:43  

Additional Information
 Earth MOID = 1.41344 au 
 Jupiter MOID = 2.17847 au 
 T_jup = 3.361 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO417413  

85559 Villecroze           Discovered 1998 Jan. 8 by S. Banh at the Dominion Astrophysical Observatory.
The discoverer is thankful for having completed her undergraduate degree in physics and astronomy, giving her the opportunity to work as a student at the DAO and then at the Canada-France-Hawaii telescope. It was in Hawaii that she met her husband Jean-Louis Villecroze, who is the most important person in her life.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050407/MPCPages.arcLast Updated: 2005-04-15

Alternate Designations
 1998 AC5 = 1999 JP7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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