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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2279292732676479 4.2595e-08  
a 2.28216775999967 1.7024e-08 au
q 1.761994920988089 9.4819e-08 au
i 2.394857513244899 6.1633e-06 deg
node 112.6573489062997 0.00022962 deg
peri 210.183086827759 0.00023306 deg
M 173.3850949031759 4.248e-05 deg
tp 2458594.002471619685
(2019-Apr-20.50247162)
0.00014395 TDB
period 1259.27266319427
3.45
1.4091e-05
3.858e-08
d
yr
n .2858793099556567 3.1989e-09 deg/d
Q 2.802340599011251 2.0905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      86  
   data-arc span      5224 days (14.30 yr)  
   first obs. used      2005-08-30  
   last obs. used      2019-12-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61432  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:40:52  

Additional Information
 Earth MOID = .748095 au 
 Jupiter MOID = 2.52568 au 
 T_jup = 3.569 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457308.5 (2015-Oct-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2285855514610478 4.2713e-08  
q 1.760064244319304 9.4981e-08 au
tp 2457335.516862067939
(2015-Nov-09.01686207)
0.00013431 TDB
node 112.6857879120574 0.00022971 deg
peri 210.2511138537016 0.00023313 deg
i 2.394577683425934 6.1623e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      86  
   data-arc span      5224 days (14.30 yr)  
   first obs. used      2005-08-30  
   last obs. used      2019-12-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61432  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:40:52  

Additional Information
 Jupiter MOID = 2.52568 au 
 T_jup = 3.569 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.824438770541559E-15 -4.021441225015586E-15 1.242609332265697E-12 6.406101856834068E-14 3.142452756001844E-13 -4.033905290450059E-15
q -4.021441225015586E-15 9.021350650741071E-15 -1.78561842303316E-12 -1.094632905819105E-13 -3.98868877990928E-13 6.814717106331459E-15
tp 1.242609332265697E-12 -1.78561842303316E-12 1.803954560969583E-8 7.621658458923757E-10 5.508432138086327E-9 -4.243784412417045E-11
node 6.406101856834068E-14 -1.094632905819105E-13 7.621658458923757E-10 5.276843213910536E-8 -5.245796158305393E-8 -7.012708286389939E-10
peri 3.142452756001844E-13 -3.98868877990928E-13 5.508432138086327E-9 -5.245796158305393E-8 5.435090157285607E-8 6.859679191726382E-10
i -4.033905290450059E-15 6.814717106331459E-15 -4.243784412417045E-11 -7.012708286389939E-10 6.859679191726382E-10 3.797398972943887E-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 18.5   n/a MPO528548  

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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