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123355 (2000 WC9)
Classification: Main-belt Asteroid          SPK-ID: 2123355
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 .2428503008348847 4.754e-08  
a 2.38026965167621 9.9449e-09 au
q 1.802220450698496 1.1486e-07 au
i 1.825240322951101 5.3726e-06 deg
node 310.0176371097913 0.00012666 deg
peri 36.84695571311079 0.00012698 deg
M 162.674513249853 8.447e-06 deg
tp 2458394.385489622396
(2018-Oct-02.88548962)
3.0339e-05 TDB
period 1341.336263295287
3.67
8.4063e-06
2.302e-08
d
yr
n .268389075768056 1.682e-09 deg/d
Q 2.958318852653924 1.236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      617  
   data-arc span      8013 days (21.94 yr)  
   first obs. used      1998-02-24  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50993  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:37:30  

Additional Information
 Earth MOID = .795707 au 
 Jupiter MOID = 2.46754 au 
 T_jup = 3.498 
[ 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 16.4   n/a MPO359599  

123355 (2000 WC9)          Discovered 2000-Nov-18 by BATTeRS at Bisei SG Center
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2000 WC9 = 1998 DR30 = 2000 UW90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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