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379370 (2009 WX242)
Classification: Main-belt Asteroid          SPK-ID: 2379370
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1297340547645678 6.9607e-08  
a 2.623908768489634 3.6258e-08 au
q 2.28349844462117 1.9658e-07 au
i 2.667999427345438 8.2927e-06 deg
node 165.8440891026696 0.00011317 deg
peri 35.96658864836427 0.00011668 deg
M 51.62901804481663 3.1848e-05 deg
tp 2458777.855030272656
(2019-Oct-21.35503027)
0.00013498 TDB
period 1552.463946385106
4.25
3.2179e-05
8.81e-08
d
yr
n .2318894431257201 4.8065e-09 deg/d
Q 2.964319092358098 4.0962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      3804 days (10.41 yr)  
   first obs. used      2008-09-06  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62767  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:10:22  

Additional Information
 Earth MOID = 1.28117 au 
 Jupiter MOID = 1.99225 au 
 T_jup = 3.390 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457202.5 (2015-Jun-29.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1297091763959413 6.9637e-08  
q 2.282709241078044 1.9724e-07 au
tp 2457223.771935439325
(2015-Jul-20.27193544)
0.00012104 TDB
node 165.8729785271299 0.00011318 deg
peri 35.39798344810315 0.00011667 deg
i 2.667868388744506 8.2936e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      3804 days (10.41 yr)  
   first obs. used      2008-09-06  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62767  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:10:22  

Additional Information
 Jupiter MOID = 1.99225 au 
 T_jup = 3.390 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.849302573245003E-15 -1.357909245889608E-14 -4.284293046831478E-12 -1.148152673517675E-14 -8.655933108573893E-13 -1.371685222616392E-15
q -1.357909245889608E-14 3.890482918238971E-14 1.240246794955682E-11 3.608633973013631E-14 2.511556482150349E-12 4.350105114142833E-15
tp -4.284293046831478E-12 1.240246794955682E-11 1.465156448860469E-8 1.093038293260479E-11 3.433685979558977E-9 4.644618524919048E-12
node -1.148152673517675E-14 3.608633973013631E-14 1.093038293260479E-11 1.281018851901999E-8 -1.279355822159038E-8 -1.700700917990037E-10
peri -8.655933108573893E-13 2.511556482150349E-12 3.433685979558977E-9 -1.279355822159038E-8 1.361112283955732E-8 1.709660614975354E-10
i -1.371685222616392E-15 4.350105114142833E-15 4.644618524919048E-12 -1.700700917990037E-10 1.709660614975354E-10 6.878444957785076E-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 16.9   n/a MPO427885  

379370 (2009 WX242)          Discovered 2009-Nov-19 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2009 WX242 = 2008 SY37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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