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 ]  
13987 (1992 WK9)
Classification: Main-belt Asteroid          SPK-ID: 2013987
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2158513680008176 6.4541e-08  
a 3.156636848301656 2.4281e-08 AU
q 2.475272466313954 2.115e-07 AU
i .8557441701233615 5.6054e-06 deg
node 53.95343006535561 0.00043309 deg
peri 323.0601268332406 0.00043318 deg
M 352.2515735699618 1.3457e-05 deg
tp 2457044.590636936636
(2015-Jan-22.09063694)
7.678e-05 JED
period 2048.4971291275
5.61
2.3636e-05
6.471e-08
d
yr
n .1757385914196189 2.0277e-09 deg/d
Q 3.838001230289358 2.9522e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      818  
   data-arc span      8019 days (21.95 yr)  
   first obs. used      1992-10-19  
   last obs. used      2014-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54829  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:26:35  

Additional Information
 Earth MOID = 1.47695 AU 
 T_jup = 3.169 
[ 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 MPO302152  

13987 (1992 WK9)          Discovered 1992-Nov-16 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1992 WK9 = 1981 UP = 1986 PS 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-31 14:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin