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100389 (1995 WU8)
Classification: Main-belt Asteroid          SPK-ID: 2100389
[ 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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1502430659437229 5.2565e-08  
a 2.284714331469832 1.0522e-08 au
q 1.941451845504241 1.1817e-07 au
i 6.735952503026453 8.0012e-06 deg
node 62.96173640714473 5.1893e-05 deg
peri 262.7855024635405 5.9647e-05 deg
M 113.1538241918499 2.8184e-05 deg
tp 2458604.027543983058
(2019-Apr-30.52754398)		 9.8265e-05 TDB
period 1261.381002237303
3.45		 8.7137e-06
2.386e-08		 d
yr
n .2854014761293141 1.9716e-09 deg/d
Q 2.627976817435422 1.2103e-08 au
   Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      8829 days (24.17 yr)  
   first obs. used      1995-11-24  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58039  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:05:28  

Additional Information
 Earth MOID = .943575 au 
 Jupiter MOID = 2.69361 au 
 T_jup = 3.579 
[ 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 MPO502722  

100389 (1995 WU8)          Discovered 1995-Nov-24 by Sato, N., Urata, T. at Chichibu
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1995 WU8 = 2001 KH4 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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