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18506 (1996 PY6)
Classification: Main-belt Asteroid          SPK-ID: 2018506
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .233456660110345 7.7429e-08  
a 2.309616922777929 1.7673e-08 AU
q 1.770421469851861 1.8161e-07 AU
i 23.19988727709952 1.1244e-05 deg
node 30.09837672662742 1.4361e-05 deg
peri 283.447330966164 2.8377e-05 deg
M 31.33320126610823 2.7372e-05 deg
tp 2456688.913765116537
(2014-Jan-31.41376512)
9.6938e-05 JED
period 1282.060017324117
3.51
1.4716e-05
4.029e-08
d
yr
n .2807980867786384 3.223e-09 deg/d
Q 2.848812375703996 2.1799e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      644  
   data-arc span      7781 days (21.30 yr)  
   first obs. used      1992-04-04  
   last obs. used      2013-07-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52867  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:08:08  

Additional Information
 Earth MOID = .897724 AU 
 T_jup = 3.444 
[ 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 14.2 mag n/a MPO267777  

18506 (1996 PY6)          Discovered 1996-Aug-15 by McNaught, R. H., Child, J. B. at Macquarie (424)
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 PY6 = 1992 GX3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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