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441814 (2009 KP23)
Classification: Main-belt Asteroid          SPK-ID: 2441814
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09309534853263371 6.0958e-08  
a 3.015921076843876 6.4715e-08 au
q 2.735152853048179 1.7944e-07 au
i 11.31413633484731 6.1101e-06 deg
node 93.88954030980331 3.8259e-05 deg
peri 222.5934820080013 5.6878e-05 deg
M 326.5827579743071 4.5404e-05 deg
tp 2459178.080996502779
(2020-Nov-24.58099650)
0.00024427 TDB
period 1913.059093621448
5.24
6.1575e-05
1.686e-07
d
yr
n .1881802821461803 6.0569e-09 deg/d
Q 3.296689300639573 7.0739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      4530 days (12.40 yr)  
   first obs. used      2006-12-10  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57183  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:13:04  

Additional Information
 Earth MOID = 1.73272 au 
 Jupiter MOID = 1.94347 au 
 T_jup = 3.212 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457370.5 (2015-Dec-14.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09226564257703004 6.135e-08  
q 2.735672380152086 1.7978e-07 au
tp 2457274.345730143152
(2015-Sep-08.84573014)
0.00021884 TDB
node 93.90119392963732 3.8283e-05 deg
peri 223.8723715458594 5.6991e-05 deg
i 11.31247808689688 6.1106e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      4530 days (12.40 yr)  
   first obs. used      2006-12-10  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57183  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:13:04  

Additional Information
 Jupiter MOID = 1.94347 au 
 T_jup = 3.212 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.763770734652489E-15 -1.045073382064063E-14 3.713112027094044E-12 5.252188849369247E-14 8.025280349040421E-13 2.958734575084705E-15
q -1.045073382064063E-14 3.231926936143216E-14 -7.290509939614767E-12 -1.499153707547189E-13 -1.619242998759338E-12 7.611115259193361E-16
tp 3.713112027094044E-12 -7.290509939614767E-12 4.789149246576365E-8 1.622228919299209E-11 9.326917737682418E-9 3.800678093076194E-11
node 5.252188849369247E-14 -1.499153707547189E-13 1.622228919299209E-11 1.465564044082698E-9 -1.431571475535552E-9 -4.776015833074843E-11
peri 8.025280349040421E-13 -1.619242998759338E-12 9.326917737682418E-9 -1.431571475535552E-9 3.247944386089788E-9 5.420862149397857E-11
i 2.958734575084705E-15 7.611115259193361E-16 3.800678093076194E-11 -4.776015833074843E-11 5.420862149397857E-11 3.733950231806082E-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 16.1   n/a MPO434639  

441814 (2009 KP23)          Discovered 2009-Mar-31 by Mt. Lemmon Survey at Mount Lemmon
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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