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(2011 DR)
Classification: Amor [NEO]          SPK-ID: 3557828
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2455617.5 (2011-Feb-25.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1324939126467949 0.00060509  
a 1.182270207016066 0.0009748 au
q 1.025626601482771 0.00013027 au
i 10.58432916725691 0.037434 deg
node 152.138326555214 0.00076783 deg
peri 7.22144285766049 0.017993 deg
M 357.18767646002 0.010008 deg
tp 2455621.168059117671
(2011-Feb-28.66805912)		 0.017328 TDB
period 469.5410266952918
1.29		 0.58072
0.00159		 d
yr
n .7667061652391488 0.00094824 deg/d
Q 1.33891381254936 0.001104 au
   Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      7 days  
   first obs. used      2011-02-23  
   last obs. used      2011-03-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .43944  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:54:24  

Additional Information
 Earth MOID = .0373314 au 
 Jupiter MOID = 3.63157 au 
 T_jup = 5.330 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 3.661355988788125E-7 7.882224470210396E-8 1.003699166639002E-5 -4.600170516900985E-7 1.042996078903327E-5 2.264975357646416E-5
q 7.882224470210396E-8 1.696972062775258E-8 2.157562691572201E-6 -9.896715206899979E-8 2.242062632074251E-6 4.876424045055198E-6
tp 1.003699166639002E-5 2.157562691572201E-6 .0003002586632872153 -1.313050822930529E-5 .0003117840074445571 .0006189388234735488
node -4.600170516900985E-7 -9.896715206899979E-8 -1.313050822930529E-5 5.895602814934644E-7 -1.364062970425571E-5 -2.841489895205346E-5
peri 1.042996078903327E-5 2.242062632074251E-6 .0003117840074445571 -1.364062970425571E-5 .0003237545099230956 .0006431868877204175
i 2.264975357646416E-5 4.876424045055198E-6 .0006189388234735488 -2.841489895205346E-5 .0006431868877204175 .001401340766200874

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.8   n/a MPO193822  

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