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 ]  
71900 (2000 WU18)
Classification: Main-belt Asteroid          SPK-ID: 2071900
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06654774839483278 3.2541e-08  
a 2.338714864107724 1.0268e-08 au
q 2.183078655763828 7.6575e-08 au
i 6.28037068369345 3.562e-06 deg
node 254.6080183064896 4.6976e-05 deg
peri 349.587877268399 6.1856e-05 deg
M 244.3713644396574 4.0947e-05 deg
tp 2459020.092040173201
(2020-Jun-19.59204017)
0.00014869 TDB
period 1306.364411638523
3.58
8.603e-06
2.355e-08
d
yr
n .2755739491926802 1.8148e-09 deg/d
Q 2.49435107245162 1.0951e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1105  
   data-arc span      7147 days (19.57 yr)  
   first obs. used      1999-07-13  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57366  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:29:47  

Additional Information
 Earth MOID = 1.16966 au 
 Jupiter MOID = 2.51762 au 
 T_jup = 3.555 
[ 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 14.9   n/a MPO366075  

71900 (2000 WU18)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
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