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379816 (2011 KT20)
Classification: Main-belt Asteroid          SPK-ID: 2379816
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .14291768546374 6.4385e-08  
a 2.741640087636316 3.6744e-08 au
q 2.349811231936728 1.6412e-07 au
i 4.33009231109027 6.3283e-06 deg
node 74.67644363152385 0.00010897 deg
peri 56.62170989388442 0.00011443 deg
M 85.4577301399833 3.7455e-05 deg
tp 2458606.892883661464
(2019-May-03.39288366)
0.00016761 TDB
period 1658.112866440107
4.54
3.3333e-05
9.126e-08
d
yr
n .2171142913647993 4.3647e-09 deg/d
Q 3.133468943335904 4.1995e-08 au
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      5665 days (15.51 yr)  
   first obs. used      2004-10-23  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64596  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 00:30:52  

Additional Information
 Earth MOID = 1.36789 au 
 Jupiter MOID = 1.92176 au 
 T_jup = 3.331 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457452.5 (2016-Mar-05.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1439884869380969 6.4375e-08  
q 2.346416659883033 1.6431e-07 au
tp 2456948.697333649141
(2014-Oct-18.19733365)
0.00014861 TDB
node 74.68801345940463 0.00010897 deg
peri 56.60687261242043 0.00011435 deg
i 4.330628795382528 6.3292e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      5665 days (15.51 yr)  
   first obs. used      2004-10-23  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64596  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 00:30:52  

Additional Information
 Jupiter MOID = 1.92176 au 
 T_jup = 3.331 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.14414254166876E-15 -1.042446206910263E-14 4.537894569566544E-12 -2.223043610371646E-15 9.802847131645807E-13 -3.841155299513617E-15
q -1.042446206910263E-14 2.699920527127552E-14 -1.033356478622024E-11 -1.344763848180021E-14 -2.142629814780884E-12 9.994275406226142E-15
tp 4.537894569566544E-12 -1.033356478622024E-11 2.208381960975872E-8 -9.335359453862233E-11 5.233577818995645E-9 -9.878054445480395E-12
node -2.223043610371646E-15 -1.344763848180021E-14 -9.335359453862233E-11 1.187404142452748E-8 -1.186247729941808E-8 -2.543673066162726E-10
peri 9.802847131645807E-13 -2.142629814780884E-12 5.233577818995645E-9 -1.186247729941808E-8 1.307542762069329E-8 2.515425747509295E-10
i -3.841155299513617E-15 9.994275406226142E-15 -9.878054445480395E-12 -2.543673066162726E-10 2.515425747509295E-10 4.005862820801504E-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 16.6   n/a MPO418933  

379816 (2011 KT20)          Discovered 2004-Oct-23 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2011 KT20 = 2010 AT39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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