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101477 (1998 WO25)
Classification: Main-belt Asteroid          SPK-ID: 2101477
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1195866704524754 3.9108e-08  
a 3.08772681218982 2.1335e-08 au
q 2.718475843453203 1.2463e-07 au
i 9.022379602563554 5.7692e-06 deg
node 42.25354061308099 2.9275e-05 deg
peri 261.8169514490248 3.9887e-05 deg
M 74.87143741695904 2.4938e-05 deg
tp 2458588.335673100515
(2019-Apr-14.83567310)
0.00013799 TDB
period 1981.78588261223
5.43
2.054e-05
5.624e-08
d
yr
n .1816543367063838 1.8827e-09 deg/d
Q 3.456977780926437 2.3886e-08 au
  Orbit Determination Parameters
   # obs. used (total)      618  
   data-arc span      8046 days (22.03 yr)  
   first obs. used      1998-10-17  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58018  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:00:24  

Additional Information
 Earth MOID = 1.72257 au 
 Jupiter MOID = 1.81722 au 
 T_jup = 3.196 
[ 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 14.5   n/a MPO449615  

101477 (1998 WO25)          Discovered 1998-Nov-16 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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