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118958 (2000 WR121)
Classification: Main-belt Asteroid          SPK-ID: 2118958
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2371361446037657 5.0077e-08  
a 3.129194298280764 2.833e-08 au
q 2.387149226670378 1.5617e-07 au
i 15.95786935998313 6.0089e-06 deg
node 98.60898746843559 2.4226e-05 deg
peri 337.1972895200931 2.8105e-05 deg
M 193.0369662862091 1.5858e-05 deg
tp 2459938.202445675372
(2022-Dec-24.70244568)
9.7068e-05 TDB
period 2021.842038530537
5.54
2.7457e-05
7.517e-08
d
yr
n .178055452967852 2.418e-09 deg/d
Q 3.87123936989115 3.5048e-08 au
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      6740 days (18.45 yr)  
   first obs. used      2000-11-26  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54788  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:56:18  

Additional Information
 Earth MOID = 1.41064 au 
 Jupiter MOID = 1.42269 au 
 T_jup = 3.112 
[ 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 ]
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