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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1613596038317117 6.0787e-08  
a 2.666678800369155 1.7337e-08 AU
q 2.236384565595164 1.6098e-07 AU
i 7.195813160596573 6.8942e-06 deg
node 146.0662806127353 4.0671e-05 deg
peri 248.7860376276053 4.59e-05 deg
M 82.6408727799852 2.0576e-05 deg
tp 2456635.370532457565
(2013-Dec-08.87053246)
9.0184e-05 JED
period 1590.57623538448
4.35
1.5511e-05
4.247e-08
d
yr
n .2263330684762679 2.2072e-09 deg/d
Q 3.096973035143146 2.0134e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1285  
   data-arc span      9489 days (25.98 yr)  
   first obs. used      1989-03-05  
   last obs. used      2015-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51222  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:14:08  

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
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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