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441451 (2008 KK9)
Classification: Main-belt Asteroid          SPK-ID: 2441451
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2278925791630815 5.8135e-08  
a 2.282086172185259 2.3303e-08 au
q 1.762015668533556 1.3967e-07 au
i 2.394847993414862 7.3572e-06 deg
node 112.6577179562882 0.00023307 deg
peri 210.1548624812722 0.0002366 deg
M 116.2513489587745 4.2135e-05 deg
tp 2458593.876956766428
(2019-Apr-20.37695677)
0.00014424 TDB
period 1259.205135038883
3.45
1.9287e-05
5.28e-08
d
yr
n .2858946409783213 4.3791e-09 deg/d
Q 2.802156675836962 2.8614e-08 au
  Orbit Determination Parameters
   # obs. used (total)      66  
   data-arc span      4609 days (12.62 yr)  
   first obs. used      2005-08-30  
   last obs. used      2018-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57428  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:41:04  

Additional Information
 Earth MOID = .750075 au 
 Jupiter MOID = 2.5258 au 
 T_jup = 3.569 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456521.5 (2013-Aug-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2273822777024315 5.853e-08  
q 1.763957578451915 1.4078e-07 au
tp 2456076.185821109847
(2012-May-28.68582111)
0.0001319 TDB
node 112.6824325602411 0.00023311 deg
peri 210.2569310002506 0.00023669 deg
i 2.394052326806182 7.3589e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      66  
   data-arc span      4609 days (12.62 yr)  
   first obs. used      2005-08-30  
   last obs. used      2018-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57428  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:41:04  

Additional Information
 Jupiter MOID = 2.5258 au 
 T_jup = 3.569 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.425800561492703E-15 -8.181488729696432E-15 2.320408917041554E-12 1.422541790666141E-13 7.203475432394809E-13 -8.367079939224496E-15
q -8.181488729696432E-15 1.981837129906219E-14 -4.87054198829378E-12 -3.156338377919171E-13 -1.476217966728832E-12 1.932682293654747E-14
tp 2.320408917041554E-12 -4.87054198829378E-12 1.739844628077722E-8 8.202140607048578E-10 5.560755988488747E-9 -3.280267108894929E-11
node 1.422541790666141E-13 -3.156338377919171E-13 8.202140607048578E-10 5.434140749713117E-8 -5.399522083155849E-8 -6.486924210781693E-10
peri 7.203475432394809E-13 -1.476217966728832E-12 5.560755988488747E-9 -5.399522083155849E-8 5.602178415131325E-8 6.361261975900685E-10
i -8.367079939224496E-15 1.932682293654747E-14 -3.280267108894929E-11 -6.486924210781693E-10 6.361261975900685E-10 5.415271029373255E-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 18.4   n/a MPO446751  

441451 (2008 KK9)          Discovered 2008-May-27 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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