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20123 (1995 WD32)
Classification: Main-belt Asteroid          SPK-ID: 2020123
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1102256739102344 3.2116e-08  
a 2.975817447163497 1.4364e-08 au
q 2.647805963616067 1.0067e-07 au
i 3.523551090932967 3.3803e-06 deg
node 134.4283577741122 7.1457e-05 deg
peri 355.9869638355094 7.5001e-05 deg
M 306.6202269199965 2.1883e-05 deg
tp 2459478.523865921177
(2021-Sep-21.02386592)		 0.00011406 TDB
period 1875.028422874993
5.13		 1.3576e-05
3.717e-08		 d
yr
n .19199708954172 1.3902e-09 deg/d
Q 3.303828930710926 1.5948e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1284  
   data-arc span      9216 days (25.23 yr)  
   first obs. used      1995-11-19  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52212  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:13:34  

Additional Information
 Earth MOID = 1.66244 au 
 Jupiter MOID = 1.73416 au 
 T_jup = 3.249 
[ 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 14.4   n/a MPO412335  

20123 (1995 WD32)          Discovered 1995-Nov-19 by Spacewatch at Kitt Peak
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1995 WD32 = 1997 LM14 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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