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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 ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2333733658647336 7.3223e-08  
a 2.30944807634913 1.7217e-08 AU
q 1.770484405481699 1.7099e-07 AU
i 23.20018300240752 1.1243e-05 deg
node 30.0980180892916 1.4248e-05 deg
peri 283.4408160382293 2.8372e-05 deg
M 87.51100501559884 2.7334e-05 deg
tp 2456688.883172942064
(2014-Jan-31.38317294)
9.5894e-05 JED
period 1281.919430828849
3.51
1.4335e-05
3.925e-08
d
yr
n .2808288815524351 3.1404e-09 deg/d
Q 2.848411747216561 2.1235e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      648  
   data-arc span      8153 days (22.32 yr)  
   first obs. used      1992-04-04  
   last obs. used      2014-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52738  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:31:11  

Additional Information
 Earth MOID = .899126 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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