Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
46636 (1994 WD3)
Classification: Main-belt Asteroid          SPK-ID: 2046636
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1670820565069806 4.9681e-08  
a 2.631313908024667 1.7988e-08 au
q 2.191668568956486 1.3631e-07 au
i 13.59893320127518 5.3025e-06 deg
node 72.62420857263049 1.9e-05 deg
peri 318.6961320104859 2.3069e-05 deg
M 282.2274774117457 1.4203e-05 deg
tp 2458937.306995840699
(2020-Mar-28.80699584)
6.3224e-05 TDB
period 1559.040577153193
4.27
1.5987e-05
4.377e-08
d
yr
n .2309112445664242 2.3678e-09 deg/d
Q 3.070959247092849 2.0994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      740  
   data-arc span      9100 days (24.91 yr)  
   first obs. used      1994-11-27  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55697  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:28:09  

Additional Information
 Earth MOID = 1.21736 au 
 Jupiter MOID = 2.3759 au 
 T_jup = 3.340 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO449296  

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

[ show close-approach data ]
Alternate Designations
 1994 WD3 = 2001 KX20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin