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(2010 WR8)
Classification: Mars-crossing Asteroid          SPK-ID: 3552651
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455537.5 (2010-Dec-07.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5533494011164579 0.0063107  
a 3.026002860814041 0.051381 au
q 1.351565990005903 0.0038534 au
i 4.42268342394864 0.043671 deg
node 270.2046176338406 0.053935 deg
peri 153.6751229660438 0.10738 deg
M 2.171766690813588 0.065611 deg
tp 2455525.901199050986
(2010-Nov-25.40119905)
0.067609 TDB
period 1922.659721832637
5.26
48.969
0.1341
d
yr
n .1872406208503998 0.0047689 deg/d
Q 4.700439731622178 0.079812 au
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      28 days  
   first obs. used      2010-11-27  
   last obs. used      2010-12-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      9  
   norm. resid. RMS      .63055  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 04:31:44  

Additional Information
 Earth MOID = .366682 au 
 Jupiter MOID = .69845 au 
 T_jup = 2.986 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 3.982512666100208E-5 2.431481513614289E-5 .0003298607963284617 -.0003403603096007625 .0006433386706711232 .0002755786776413709
q 2.431481513614289E-5 1.48483859817227E-5 .0002038280392113782 -.0002078067738097967 .0003946989540554474 .0001682762426282967
tp .0003298607963284617 .0002038280392113782 .004570983425012432 -.002821582267660281 .006774874224577331 .002301046229596976
node -.0003403603096007625 -.0002078067738097967 -.002821582267660281 .002908952558376234 -.005500257142085493 -.002355241678620695
peri .0006433386706711232 .0003946989540554474 .006774874224577331 -.005500257142085493 .01153017190792055 .004466294507001188
i .0002755786776413709 .0001682762426282967 .002301046229596976 -.002355241678620695 .004466294507001188 .001907118037010751

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 21.3   n/a MPO190042  

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