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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1613596348623307 6.5873e-08  
a 2.666678788126415 2.078e-08 AU
q 2.236384472579214 1.7854e-07 AU
i 7.19581213417317 7.0107e-06 deg
node 146.06625996 4.935e-05 deg
peri 248.7860602134515 5.3778e-05 deg
M 82.64087574577 2.0639e-05 deg
tp 2456635.370521868403
(2013-Dec-08.87052187)
9.0393e-05 JED
period 1590.576224430961
4.35
1.8592e-05
5.09e-08
d
yr
n .2263330700349129 2.6455e-09 deg/d
Q 3.096973103673616 2.4133e-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 = 1.2542 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 12.8 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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