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193749 (2001 KG)
Classification: Mars-crossing Asteroid          SPK-ID: 2193749
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3084828337056613 3.9431e-08  
a 2.223694864763881 1.0759e-08 au
q 1.537723171584792 8.4138e-08 au
i 7.824366636011825 5.5716e-06 deg
node 55.491721644768 3.2439e-05 deg
peri 260.2736566910937 3.4335e-05 deg
M 216.9686769496917 1.2779e-05 deg
tp 2459481.715792710691
(2021-Sep-24.21579271)
4.5161e-05 TDB
period 1211.187044077862
3.32
8.7903e-06
2.407e-08
d
yr
n .2972290710672901 2.1572e-09 deg/d
Q 2.909666557942971 1.4078e-08 au
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      6940 days (19.00 yr)  
   first obs. used      2001-04-18  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5175  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 05:57:28  

Additional Information
 Earth MOID = .549952 au 
 Jupiter MOID = 2.44569 au 
 T_jup = 3.572 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457020.5 (2014-Dec-29.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3092647778177313 3.9541e-08  
q 1.535771973500872 8.4454e-08 au
tp 2457059.290115996014
(2015-Feb-05.79011600)
3.6218e-05 TDB
node 55.53549858575805 3.2459e-05 deg
peri 260.2589126143606 3.4342e-05 deg
i 7.823516085329699 5.5704e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      6940 days (19.00 yr)  
   first obs. used      2001-04-18  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5175  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 05:57:28  

Additional Information
 Jupiter MOID = 2.44569 au 
 T_jup = 3.572 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.563461464583711E-15 -3.329885955036404E-15 5.423279101291519E-13 -2.105850946737717E-14 1.772602362019585E-13 2.446522628346182E-15
q -3.329885955036404E-15 7.13255750850882E-15 -1.122268713209318E-12 4.361270813336802E-14 -3.696839301145949E-13 -5.32143981074171E-15
tp 5.423279101291519E-13 -1.122268713209318E-12 1.311740274906554E-9 -4.022406989815893E-11 4.226964877175026E-10 9.531419229342861E-13
node -2.105850946737717E-14 4.361270813336802E-14 -4.022406989815893E-11 1.053603380365441E-9 -1.054751896665079E-9 -5.474964574393657E-11
peri 1.772602362019585E-13 -3.696839301145949E-13 4.226964877175026E-10 -1.054751896665079E-9 1.179350002101645E-9 5.458072129066038E-11
i 2.446522628346182E-15 -5.32143981074171E-15 9.531419229342861E-13 -5.474964574393657E-11 5.458072129066038E-11 3.102943088723751E-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 16.4   n/a MPO470085  

193749 (2001 KG)          Discovered 2001-May-17 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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