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(2009 BK2)
Classification: Apollo [NEO]          SPK-ID: 3444372
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2125739891341407 0.0006399  
a 1.012685400041912 4.549e-05 au
q .7974148248170994 0.00061229 au
i 3.554539256250051 0.011388 deg
node 126.0559647216547 0.0089352 deg
peri 121.6247956923001 0.031891 deg
M 139.6505645860542 0.41708 deg
tp 2459056.105568539736
(2020-Jul-25.60556854)
0.42152 TDB
period 372.2290380978946
1.02
0.025081
6.867e-05
d
yr
n .9671464693878116 6.5166e-05 deg/d
Q 1.227955975266724 5.516e-05 au
  Orbit Determination Parameters
   # obs. used (total)      27  
   data-arc span      13 days  
   first obs. used      2009-01-18  
   last obs. used      2009-01-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .56538  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:29:54  

Additional Information
 Earth MOID = .0257695 au 
 Jupiter MOID = 3.78336 au 
 T_jup = 5.999 
[ hide covariance matrix ]
Orbital Elements at Epoch 2454854.5 (2009-Jan-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2125477397927156 0.00063334  
q .796914006902143 0.00057852 au
tp 2454962.791488908456
(2009-May-11.29148891)
0.027497 TDB
node 126.6506329542063 0.0067419 deg
peri 121.402857440538 0.029166 deg
i 3.57087590282787 0.011475 deg
  Orbit Determination Parameters
   # obs. used (total)      27  
   data-arc span      13 days  
   first obs. used      2009-01-18  
   last obs. used      2009-01-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .56538  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:29:54  

Additional Information
 Jupiter MOID = 3.78336 au 
 T_jup = 5.999 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.011239433009544E-7 -3.663780617913749E-7 -1.733110688218844E-5 -4.268965746930399E-6 1.835616590569718E-5 7.267165137139545E-6
q -3.663780617913749E-7 3.346862434298974E-7 1.581212991129826E-5 3.89973697564928E-6 -1.67876917204574E-5 -6.638291861996561E-6
tp -1.733110688218844E-5 1.581212991129826E-5 .000756101780697346 .000184210879550308 -.0007843169563046528 -.0003137216648883858
node -4.268965746930399E-6 3.89973697564928E-6 .000184210879550308 4.545259196213387E-5 -.0001956490065645451 -7.73554925494472E-5
peri 1.835616590569718E-5 -1.67876917204574E-5 -.0007843169563046528 -.0001956490065645451 .00085064452419462 .0003328806135198737
i 7.267165137139545E-6 -6.638291861996561E-6 -.0003137216648883858 -7.73554925494472E-5 .0003328806135198737 .0001316740301545724

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 25.3   n/a MPO152543  

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