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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1613596097374536 6.4353e-08  
a 2.666678797709409 2.0068e-08 AU
q 2.236384547615877 1.7352e-07 AU
i 7.195812595309011 6.9482e-06 deg
node 146.0662656195741 4.8055e-05 deg
peri 248.7860534420595 5.2622e-05 deg
M 82.64087297220563 2.0585e-05 deg
tp 2456635.370532154554
(2013-Dec-08.87053215)
9.0224e-05 JED
period 1590.576233004818
4.35
1.7955e-05
4.916e-08
d
yr
n .2263330688148849 2.5549e-09 deg/d
Q 3.09697304780294 2.3306e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1153  
   data-arc span      9370 days (25.65 yr)  
   first obs. used      1989-03-05  
   last obs. used      2014-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52518  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:07:29  

Additional Information
 Earth MOID = 1.2542 AU 
 T_jup = 3.353 
[ 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 12.9 mag n/a MPO313489  

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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