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8512 (1991 PC11)
Classification: Main-belt Asteroid          SPK-ID: 2008512
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1608541745758725 6.5878e-08  
a 2.665383032246368 2.0344e-08 AU
q 2.236645044665842 1.7823e-07 AU
i 7.193510122524912 7.0082e-06 deg
node 146.07759678 4.9385e-05 deg
peri 248.684852864259 5.3835e-05 deg
M 37.49148877005141 2.0592e-05 deg
tp 2456634.973300516149
(2013-Dec-08.47330052)
9.0583e-05 JED
period 1589.417058886901
4.35
1.8197e-05
4.982e-08
d
yr
n .2264981352673506 2.5931e-09 deg/d
Q 3.094121019826893 2.3616e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1136  
   data-arc span      9095 days (24.90 yr)  
   first obs. used      1989-03-05  
   last obs. used      2014-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52398  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:39:59  

Additional Information
 Earth MOID = 1.25336 AU 
 T_jup = 3.354 
[ 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 12.8 mag n/a MPO267742  

8512 (1991 PC11)          Discovered 1991-Aug-07 by Holt, H. E. at Palomar (675)
Reference: 19980313/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PC11 = 1989 ES10 = 1996 XT32 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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