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102872 (1999 WE11)
Classification: Main-belt Asteroid          SPK-ID: 2102872
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0391703529960646 4.3041e-08  
a 3.007991980677773 2.0259e-08 au
q 2.890167872985293 1.2771e-07 au
i 2.912395804960819 4.3556e-06 deg
node 92.07072323149637 0.00010001 deg
peri 155.016299701178 0.00012167 deg
M 185.1595856519583 7.1783e-05 deg
tp 2460125.949583435450
(2023-Jun-30.44958344)		 0.00038235 TDB
period 1905.519677925047
5.22		 1.925e-05
5.27e-08		 d
yr
n .1889248398589146 1.9086e-09 deg/d
Q 3.125816088370252 2.1052e-08 au
   Orbit Determination Parameters
   # obs. used (total)      539  
   data-arc span      7732 days (21.17 yr)  
   first obs. used      1999-11-09  
   last obs. used      2021-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56247  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:32:39  

Additional Information
 Earth MOID = 1.87495 au 
 Jupiter MOID = 1.86544 au 
 T_jup = 3.247 
[ 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 15.2   n/a MPO453481  

102872 (1999 WE11)          Discovered 1999-Nov-30 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1999 WE11 = 2000 YZ123 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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