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441787 (2009 DK107)
Classification: Main-belt Asteroid          SPK-ID: 2441787
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2359715020457879 1.4145e-07  
a 3.012284795317846 1.5851e-07 au
q 2.301471427577005 4.0672e-07 au
i 2.564895417644168 9.6328e-06 deg
node 195.0410090432616 0.0003789 deg
peri 36.71885763389792 0.00046097 deg
M 14.4217195526851 0.00017297 deg
tp 2458924.000778322070
(2020-Mar-15.50077832)
0.00092331 TDB
period 1909.600287500214
5.23
0.00015073
4.127e-07
d
yr
n .1885211278802552 1.488e-08 deg/d
Q 3.723098163058687 1.9591e-07 au
  Orbit Determination Parameters
   # obs. used (total)      44  
   data-arc span      7256 days (19.87 yr)  
   first obs. used      2000-08-27  
   last obs. used      2020-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .52338  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:52:39  

Additional Information
 Earth MOID = 1.29152 au 
 Jupiter MOID = 1.27477 au 
 T_jup = 3.205 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457222.5 (2015-Jul-19.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2351227267382785 1.4282e-07  
q 2.3044751462103 4.0492e-07 au
tp 2457012.403713937394
(2014-Dec-20.90371394)
0.0010731 TDB
node 195.0623820913525 0.0003789 deg
peri 36.43973401183441 0.00046156 deg
i 2.564111855653356 9.6323e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      44  
   data-arc span      7256 days (19.87 yr)  
   first obs. used      2000-08-27  
   last obs. used      2020-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .52338  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:52:39  

Additional Information
 Jupiter MOID = 1.27477 au 
 T_jup = 3.205 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.03968018955723E-14 -5.564443432189173E-14 -2.757286532836462E-11 9.274453924526552E-14 -7.953203605832216E-12 -5.312058214445515E-15
q -5.564443432189173E-14 1.639561605523581E-13 -3.854615560248794E-11 -1.764316321266163E-12 -5.942021882145666E-12 1.427763892160091E-13
tp -2.757286532836462E-11 -3.854615560248794E-11 1.151592946196241E-6 1.270794313581016E-8 2.833069496152674E-7 -1.215560126019238E-9
node 9.274453924526552E-14 -1.764316321266163E-12 1.270794313581016E-8 1.43565039833948E-7 -1.402125889098581E-7 5.558389500781624E-10
peri -7.953203605832216E-12 -5.942021882145666E-12 2.833069496152674E-7 -1.402125889098581E-7 2.13033802854303E-7 -8.656315116671232E-10
i -5.312058214445515E-15 1.427763892160091E-13 -1.215560126019238E-9 5.558389500781624E-10 -8.656315116671232E-10 9.278142325938774E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.8   n/a MPO342887  

441787 (2009 DK107)          Discovered 2009-Feb-28 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

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