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332808 (2009 WD162)
Classification: Main-belt Asteroid          SPK-ID: 2332808
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1129576114145862 6.6463e-08  
a 3.099170509689502 4.6329e-08 au
q 2.74909561154845 1.8875e-07 au
i 7.93741792272754 6.7752e-06 deg
node 56.48398206321517 3.9181e-05 deg
peri 201.0799642763575 4.7669e-05 deg
M 147.0875524947067 2.7413e-05 deg
tp 2458186.283209837824
(2018-Mar-08.78320984)
0.00014779 TDB
period 1992.813392342849
5.46
4.4686e-05
1.223e-07
d
yr
n .180649127200398 4.0508e-09 deg/d
Q 3.449245407830554 5.1562e-08 au
  Orbit Determination Parameters
   # obs. used (total)      201  
   data-arc span      6740 days (18.45 yr)  
   first obs. used      2001-05-16  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56933  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 09:46:20  

Additional Information
 Earth MOID = 1.73608 au 
 Jupiter MOID = 1.59897 au 
 T_jup = 3.198 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457502.5 (2016-Apr-24.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1150142509353482 6.5673e-08  
q 2.741295778200942 1.8686e-07 au
tp 2458188.968619872794
(2018-Mar-11.46861987)
0.00014638 TDB
node 56.53889695958621 3.925e-05 deg
peri 201.6826487987054 4.7646e-05 deg
i 7.933381019850128 6.771e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      201  
   data-arc span      6740 days (18.45 yr)  
   first obs. used      2001-05-16  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56933  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 09:46:20  

Additional Information
 Jupiter MOID = 1.59897 au 
 T_jup = 3.198 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.312943759216318E-15 -1.204935252775628E-14 -1.696406803657497E-12 2.58197148305695E-14 -5.67149608744598E-13 2.441998238064444E-15
q -1.204935252775628E-14 3.491587648436356E-14 6.170401545421729E-12 -7.056570143829255E-14 1.753914002305215E-12 -6.19931041933368E-15
tp -1.696406803657497E-12 6.170401545421729E-12 2.142783723722954E-8 -2.767704378805186E-11 3.927601657512575E-9 -1.020544851595136E-11
node 2.58197148305695E-14 -7.056570143829255E-14 -2.767704378805186E-11 1.540587778679934E-9 -1.532203235815557E-9 -6.018633956281425E-11
peri -5.67149608744598E-13 1.753914002305215E-12 3.927601657512575E-9 -1.532203235815557E-9 2.270139522397013E-9 5.753768278970395E-11
i 2.441998238064444E-15 -6.19931041933368E-15 -1.020544851595136E-11 -6.018633956281425E-11 5.753768278970395E-11 4.584608159141262E-11

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 15.8   n/a MPO455451  

332808 (2009 WD162)          Discovered 2009-Nov-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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