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266498 (2008 DF84)
Classification: Main-belt Asteroid          SPK-ID: 2266498
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1460296510174877 3.9114e-08  
a 2.720106559123387 3.057e-08 au
q 2.32289034756422 1.098e-07 au
i 9.270074784065962 7.0184e-06 deg
node 33.27528984190067 2.9227e-05 deg
peri 237.3143032561894 3.9525e-05 deg
M 186.4343292214746 2.7569e-05 deg
tp 2459790.520996395299
(2022-Jul-30.02099640)
0.00012703 TDB
period 1638.616423550827
4.49
2.7624e-05
7.563e-08
d
yr
n .219697541673537 3.7036e-09 deg/d
Q 3.117322770682554 3.5034e-08 au
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      6147 days (16.83 yr)  
   first obs. used      2003-03-07  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56671  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 04:10:36  

Additional Information
 Earth MOID = 1.32278 au 
 Jupiter MOID = 2.0115 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457298.5 (2015-Oct-03.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1474664844103574 3.8842e-08  
q 2.317247146368936 1.091e-07 au
tp 2456515.319874472146
(2013-Aug-10.81987447)
0.00012882 TDB
node 33.30136335638476 2.9238e-05 deg
peri 237.4377428236649 3.9434e-05 deg
i 9.271844588699636 7.02e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      6147 days (16.83 yr)  
   first obs. used      2003-03-07  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56671  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 04:10:36  

Additional Information
 Jupiter MOID = 2.0115 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.508702612220842E-15 -4.115488851002964E-15 -9.425676732496563E-13 -7.016721223084956E-15 -2.085857869944531E-13 1.845590416452481E-15
q -4.115488851002964E-15 1.190282886763966E-14 1.669561586082451E-12 1.936133320963748E-14 4.538942391747718E-13 -3.567256929055343E-15
tp -9.425676732496563E-13 1.669561586082451E-12 1.65942109895486E-8 4.244454899022982E-11 3.41155923939965E-9 -1.806748397766661E-11
node -7.016721223084956E-15 1.936133320963748E-14 4.244454899022982E-11 8.54881272842535E-10 -8.339471511334327E-10 -6.290558798985651E-11
peri -2.085857869944531E-13 4.538942391747718E-13 3.41155923939965E-9 -8.339471511334327E-10 1.555051018383047E-9 5.839250166185343E-11
i 1.845590416452481E-15 -3.567256929055343E-15 -1.806748397766661E-11 -6.290558798985651E-11 5.839250166185343E-11 4.927978556224112E-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 16.0   n/a MPO454981  

266498 (2008 DF84)          Discovered 2008-Feb-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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