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 ]  
46636 (1994 WD3)
Classification: Main-belt Asteroid          SPK-ID: 2046636
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 .1685371908179739 9.2358e-08  
a 2.631198375058565 2.8189e-08 AU
q 2.187743592441377 2.4557e-07 AU
i 13.58402852287894 1.0789e-05 deg
node 72.70332388482957 2.7965e-05 deg
peri 317.8116348885987 3.5955e-05 deg
M 273.8268996302817 2.2279e-05 deg
tp 2457373.662533495929
(2015-Dec-17.16253350)
9.8588e-05 JED
period 1558.937899207137
4.27
2.5053e-05
6.859e-08
d
yr
n .2309264533135624 3.711e-09 deg/d
Q 3.074653157675753 3.294e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      419  
   data-arc span      7208 days (19.73 yr)  
   first obs. used      1994-11-27  
   last obs. used      2014-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .63232  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:48:37  

Additional Information
 Earth MOID = 1.21421 AU 
 T_jup = 3.340 
[ 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 14.7 mag n/a MPO263731  

46636 (1994 WD3)          Discovered 1994-Nov-28 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 WD3 = 2001 KX20 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-20 17:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin