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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2340819891680521 7.8313e-08  
a 2.580402502024666 1.8374e-08 AU
q 1.976376751496514 1.985e-07 AU
i 3.907167272057808 6.9625e-06 deg
node 320.8043772467793 9.9467e-05 deg
peri 19.79794335092555 0.00010013 deg
M 218.6860779370305 1.931e-05 deg
tp 2457594.808658662436
(2016-Jul-25.30865866)
8.4246e-05 JED
period 1514.013014394578
4.15
1.6171e-05
4.427e-08
d
yr
n .2377786693887546 2.5396e-09 deg/d
Q 3.184428252552819 2.2674e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      866  
   data-arc span      22028 days (60.31 yr)  
   first obs. used      1954-11-23  
   last obs. used      2015-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58472  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:32:04  

Additional Information
 Earth MOID = .968802 AU 
 T_jup = 3.383 
[ 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
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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