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
JPL Small-Body Database Browser
Search: [ help ]  
118958 (2000 WR121)
Classification: Main-belt Asteroid          SPK-ID: 2118958
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2351241988541506 4.9645e-08  
a 3.134184169830927 2.8591e-08 au
q 2.397261627838069 1.5526e-07 au
i 15.94030657538939 5.4634e-06 deg
node 98.60939172805519 2.3061e-05 deg
peri 337.1000706245075 2.6568e-05 deg
M 228.6392469034006 1.5769e-05 deg
tp 2459940.017277262887
(2022-Dec-26.51727726)		 9.5739e-05 TDB
period 2026.680066449248
5.55		 2.7732e-05
7.593e-08		 d
yr
n .1776304045022368 2.4306e-09 deg/d
Q 3.871106711823785 3.5314e-08 au
   Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      6794 days (18.60 yr)  
   first obs. used      2000-11-26  
   last obs. used      2019-07-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53275  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:59:40  

Additional Information
 Earth MOID = 1.42039 au 
 Jupiter MOID = 1.42326 au 
 T_jup = 3.111 
[ 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 MPO341361  

118958 (2000 WR121)          Discovered 2000-Nov-26 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ 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 2021-Apr-22 18:53 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin