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 ]  
212896 (2007 WR)
Classification: Main-belt Asteroid          SPK-ID: 2212896
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .005763497961887257 6.8839e-08  
a 2.859482952779688 3.7189e-08 au
q 2.843002328609291 1.8398e-07 au
i 3.107379363755363 6.8915e-06 deg
node 71.04486005292253 0.000145 deg
peri 46.0698462339171 0.00074546 deg
M 73.53623638515764 0.00072992 deg
tp 2458239.731515119319
(2018-May-01.23151512)
0.0035808 TDB
period 1766.158576253424
4.84
3.4454e-05
9.433e-08
d
yr
n .2038322067114001 3.9764e-09 deg/d
Q 2.875963576950086 3.7403e-08 au
  Orbit Determination Parameters
   # obs. used (total)      236  
   data-arc span      6027 days (16.50 yr)  
   first obs. used      2002-10-30  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62782  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:57:44  

Additional Information
 Earth MOID = 1.85607 au 
 Jupiter MOID = 2.09407 au 
 T_jup = 3.300 
[ 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 16.0   n/a MPO281138  

212896 (2007 WR)          Discovered 2007-Nov-17 by Lacruz, J. at La Canada
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2007 WR = 2002 US72 = 2005 LL47 
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