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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1613596100208011 5.9905e-08  
a 2.666678796831554 1.6513e-08 AU
q 2.236384546124075 1.5778e-07 AU
i 7.195813270835567 6.8878e-06 deg
node 146.0662745447449 3.733e-05 deg
peri 248.7860455334878 4.2837e-05 deg
M 82.64087248317628 2.0573e-05 deg
tp 2456635.370534495514
(2013-Dec-08.87053450)
9.0159e-05 JED
period 1590.576232219405
4.35
1.4774e-05
4.045e-08
d
yr
n .2263330689266463 2.1023e-09 deg/d
Q 3.096973047539032 1.9178e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1372  
   data-arc span      9574 days (26.21 yr)  
   first obs. used      1989-03-05  
   last obs. used      2015-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50838  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:01:58  

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 13.0 mag n/a MPO337328  

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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