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 ]  
390618 (2001 WU2)
Classification: Main-belt Asteroid          SPK-ID: 2390618
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2003917966727486 6.7262e-08  
a 3.110481817820112 6.8371e-08 au
q 2.487166777829223 2.2224e-07 au
i 15.49460142169751 1.0588e-05 deg
node 221.8929254840726 2.6978e-05 deg
peri 253.9570479807173 4.2051e-05 deg
M 9.496769367318404 4.1182e-05 deg
tp 2458547.641684627153
(2019-Mar-05.14168463)
0.00022814 TDB
period 2003.733353756064
5.49
6.6066e-05
1.809e-07
d
yr
n .1796646242002051 5.9238e-09 deg/d
Q 3.733796857811002 8.2072e-08 au
  Orbit Determination Parameters
   # obs. used (total)      114  
   data-arc span      6288 days (17.22 yr)  
   first obs. used      2001-10-21  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61575  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:47:54  

Additional Information
 Earth MOID = 1.55612 au 
 Jupiter MOID = 1.81365 au 
 T_jup = 3.133 
[ 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 15.9   n/a MPO427947  

390618 (2001 WU2)          Discovered 2001-Oct-21 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2001 WU2 = 2012 TZ66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-19 16:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin