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8514 (1991 PK15)
Classification: Main-belt Asteroid          SPK-ID: 2008514
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2336434873318396 8.3086e-08  
a 2.581291427659255 1.9172e-08 AU
q 1.978189496681164 2.0981e-07 AU
i 3.906957674410901 7.126e-06 deg
node 320.8031494875257 0.00010044 deg
peri 19.80093980024397 0.00010108 deg
M 171.1284933961818 1.9247e-05 deg
tp 2456080.431501804472
(2012-Jun-01.93150180)
7.7881e-05 JED
period 1514.795427727256
4.15
1.6876e-05
4.62e-08
d
yr
n .2376558533320443 2.6477e-09 deg/d
Q 3.184393358637347 2.3651e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      845  
   data-arc span      21733 days (59.50 yr)  
   first obs. used      1954-11-23  
   last obs. used      2014-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58856  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:39:59  

Additional Information
 Earth MOID = .96887 AU 
 T_jup = 3.382 
[ 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 13.8 mag n/a MPO256927  

8514 (1991 PK15)          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 PK15 = 1987 UE2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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