Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
8514 (1991 PK15)
Classification: Main-belt Asteroid          SPK-ID: 2008514
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2340820053008187 8.3165e-08  
a 2.58040250469131 1.898e-08 AU
q 1.976376711909913 2.1001e-07 AU
i 3.907165528441377 7.1271e-06 deg
node 320.8043914000987 0.00010045 deg
peri 19.79792885720144 0.00010109 deg
M 218.6860763926018 1.9446e-05 deg
tp 2457594.808666078929
(2016-Jul-25.30866608)
8.5001e-05 JED
period 1514.013016741499
4.15
1.6704e-05
4.573e-08
d
yr
n .2377786690201661 2.6235e-09 deg/d
Q 3.184428297472707 2.3423e-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 = .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 (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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Sep-02 14:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin