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392945 (2012 WN9)
Classification: Main-belt Asteroid          SPK-ID: 2392945
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05954701842111086 9.3172e-08  
a 2.59167655544644 3.764e-08 au
q 2.437349943857709 2.5087e-07 au
i 8.78202303961643 1.0526e-05 deg
node 257.1720965607292 5.0987e-05 deg
peri 166.8768665717962 8.7865e-05 deg
M 295.1981999279869 7.1537e-05 deg
tp 2459274.817930754898
(2021-Mar-01.31793075)
0.0003044 TDB
period 1523.946170662219
4.17
3.3199e-05
9.089e-08
d
yr
n .2362288162997022 5.1463e-09 deg/d
Q 2.74600316703517 3.9881e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      6238 days (17.08 yr)  
   first obs. used      2001-02-20  
   last obs. used      2018-03-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52017  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:52:11  

Additional Information
 Earth MOID = 1.4519 au 
 Jupiter MOID = 2.48171 au 
 T_jup = 3.400 
[ 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 16.1   n/a MPO434458  

392945 (2012 WN9)          Discovered 2008-Dec-21 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2012 WN9 = 2008 YZ26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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