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268462 (2005 WW165)
Classification: Main-belt Asteroid          SPK-ID: 2268462
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08802497430709245 7.6649e-08  
a 2.560701616895136 2.4264e-08 au
q 2.335295922859812 2.1097e-07 au
i .6962326592566819 5.2041e-06 deg
node 158.9578113385682 0.00053071 deg
peri 206.1969385279103 0.00053151 deg
M 243.475180359594 3.0316e-05 deg
tp 2459484.954315625673
(2021-Sep-27.45431563)
0.00012672 TDB
period 1496.70734667043
4.10
2.1273e-05
5.824e-08
d
yr
n .2405279835105071 3.4187e-09 deg/d
Q 2.786107310930461 2.64e-08 au
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      6778 days (18.56 yr)  
   first obs. used      2001-12-23  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55934  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:12:48  

Additional Information
 Earth MOID = 1.33317 au 
 Jupiter MOID = 2.60822 au 
 T_jup = 3.429 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457657.5 (2016-Sep-26.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08767284216938157 7.6858e-08  
q 2.336076287761268 2.1143e-07 au
tp 2457990.512515220402
(2017-Aug-25.01251522)
0.00012568 TDB
node 158.9589513083198 0.00053085 deg
peri 206.7470930646725 0.00053165 deg
i .6961220101213341 5.2037e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      6778 days (18.56 yr)  
   first obs. used      2001-12-23  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55934  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:12:48  

Additional Information
 Jupiter MOID = 2.60822 au 
 T_jup = 3.429 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.907207738635106E-15 -1.619628761446882E-14 3.636554324342993E-12 1.293855783010726E-13 8.178325723429073E-13 2.245600743217001E-16
q -1.619628761446882E-14 4.470360103012798E-14 -9.416618294718968E-12 -3.478075375318251E-13 -2.135424897770464E-12 -5.018238548096838E-16
tp 3.636554324342993E-12 -9.416618294718968E-12 1.579454829228502E-8 1.054919425986737E-10 3.725645891948681E-9 6.91888909605693E-13
node 1.293855783010726E-13 -3.478075375318251E-13 1.054919425986737E-10 2.818054286534285E-7 -2.817572484468393E-7 1.072702354484161E-9
peri 8.178325723429073E-13 -2.135424897770464E-12 3.725645891948681E-9 -2.817572484468393E-7 2.826549085717959E-7 -1.072463810380959E-9
i 2.245600743217001E-16 -5.018238548096838E-16 6.91888909605693E-13 1.072702354484161E-9 -1.072463810380959E-9 2.707898489645018E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO334540  

268462 (2005 WW165)          Discovered 2005-Nov-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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