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347507 (1999 KN2)
Classification: Main-belt Asteroid          SPK-ID: 2347507
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2242511898121757 1.1928e-07  
a 2.407827238812976 2.2813e-08 au
q 1.867869115647001 2.7769e-07 au
i 7.319367907653859 1.1715e-05 deg
node 223.6530668481991 5.0238e-05 deg
peri 327.5691065815284 5.7463e-05 deg
M 255.5489575526265 3.5702e-05 deg
tp 2459396.455782308249
(2021-Jun-30.95578231)
0.00013969 TDB
period 1364.697549120094
3.74
1.9395e-05
5.31e-08
d
yr
n .2637947142442768 3.749e-09 deg/d
Q 2.947785361978952 2.7929e-08 au
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      7466 days (20.44 yr)  
   first obs. used      1999-05-16  
   last obs. used      2019-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64817  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 10:33:55  

Additional Information
 Earth MOID = .871856 au 
 Jupiter MOID = 2.03431 au 
 T_jup = 3.476 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456857.5 (2014-Jul-19.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2241235744667739 1.1944e-07  
q 1.868208478009256 2.7805e-07 au
tp 2456667.424396724220
(2014-Jan-09.92439672)
0.00011192 TDB
node 223.6728760969853 5.0249e-05 deg
peri 327.6000237066762 5.7431e-05 deg
i 7.317823259927982 1.1713e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      7466 days (20.44 yr)  
   first obs. used      1999-05-16  
   last obs. used      2019-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64817  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 10:33:55  

Additional Information
 Jupiter MOID = 2.03431 au 
 T_jup = 3.476 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.426598933594623E-14 -3.316380301291661E-14 1.065266050672286E-11 1.438213905371028E-13 2.318098961429722E-12 -5.493385159053184E-14
q -3.316380301291661E-14 7.731114925956703E-14 -2.441299300994663E-11 -3.353761227261518E-13 -5.287024353477501E-12 1.275904913469376E-13
tp 1.065266050672286E-11 -2.441299300994663E-11 1.252523379354441E-8 1.310998807246069E-10 3.107001018007274E-9 -5.136556808147138E-11
node 1.438213905371028E-13 -3.353761227261518E-13 1.310998807246069E-10 2.524994743146114E-9 -2.470704287193339E-9 2.326349108522298E-10
peri 2.318098961429722E-12 -5.287024353477501E-12 3.107001018007274E-9 -2.470704287193339E-9 3.298338404323509E-9 -2.437137202627667E-10
i -5.493385159053184E-14 1.275904913469376E-13 -5.136556808147138E-11 2.326349108522298E-10 -2.437137202627667E-10 1.371905595549609E-10

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 17.6   n/a MPO494814  

347507 (1999 KN2)          Discovered 1999-May-16 by Spacewatch at Kitt Peak
Reference: 20121228/Numbers.arcLast Updated: 2013-01-02

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