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123415 (2000 WN99)
Classification: Main-belt Asteroid          SPK-ID: 2123415
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .103673033498105 4.4052e-08  
a 2.735386056673087 2.1708e-08 au
q 2.451800286389369 1.2156e-07 au
i 4.090423342580635 5.3896e-06 deg
node 268.9303945337805 8.0988e-05 deg
peri 162.7631867275565 8.871e-05 deg
M 113.471360029134 3.5672e-05 deg
tp 2458479.653044969488
(2018-Dec-27.15304497)
0.00016143 TDB
period 1652.442552577515
4.52
1.967e-05
5.385e-08
d
yr
n .2178593134378343 2.5934e-09 deg/d
Q 3.018971826956805 2.3958e-08 au
  Orbit Determination Parameters
   # obs. used (total)      518  
   data-arc span      7097 days (19.43 yr)  
   first obs. used      2000-11-21  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52622  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:00:03  

Additional Information
 Earth MOID = 1.46684 au 
 Jupiter MOID = 2.21737 au 
 T_jup = 3.341 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457305.5 (2015-Oct-10.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .103455951432322 4.4133e-08  
q 2.453559380443548 1.2183e-07 au
tp 2456829.943537528072
(2014-Jun-21.44353753)
0.00015587 TDB
node 268.9721053990006 8.1e-05 deg
peri 163.4909777784452 8.8726e-05 deg
i 4.089270648278132 5.3895e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      518  
   data-arc span      7097 days (19.43 yr)  
   first obs. used      2000-11-21  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52622  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:00:03  

Additional Information
 Jupiter MOID = 2.21737 au 
 T_jup = 3.341 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.947709893706989E-15 -5.308653884927713E-15 7.578562233017085E-13 -4.845133776746736E-15 1.184564674026056E-13 -1.606931848779629E-15
q -5.308653884927713E-15 1.484164084929453E-14 -1.431806866517827E-12 1.195775622202674E-14 -1.517958498212059E-13 4.479151969898877E-15
tp 7.578562233017085E-13 -1.431806866517827E-12 2.429404025962509E-8 4.211846994187025E-11 5.679886150687994E-9 -6.091814278963999E-12
node -4.845133776746736E-15 1.195775622202674E-14 4.211846994187025E-11 6.560995906468645E-9 -6.533893468238623E-9 1.351107901377372E-10
peri 1.184564674026056E-13 -1.517958498212059E-13 5.679886150687994E-9 -6.533893468238623E-9 7.872324466852605E-9 -1.361285753823829E-10
i -1.606931848779629E-15 4.479151969898877E-15 -6.091814278963999E-12 1.351107901377372E-10 -1.361285753823829E-10 2.904689870678483E-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 15.7   n/a MPO453706  
diameter diameter 4.152 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

123415 (2000 WN99)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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