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JPL Small-Body Database Browser
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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1429176720569268 7.7406e-08  
a 2.741640080160617 4.3634e-08 au
q 2.349811262286095 2.1441e-07 au
i 4.330085790725183 6.3947e-06 deg
node 74.67633243380109 0.00014135 deg
peri 56.62183469964204 0.00014595 deg
M 85.45771483326851 3.8063e-05 deg
tp 2458606.892955772076
(2019-May-03.39295577)
0.00017149 TDB
period 1658.11285965828
4.54
3.9584e-05
1.084e-07
d
yr
n .2171142922528158 5.1832e-09 deg/d
Q 3.133468898035138 4.987e-08 au
  Orbit Determination Parameters
   # obs. used (total)      137  
   data-arc span      5197 days (14.23 yr)  
   first obs. used      2004-10-23  
   last obs. used      2019-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66349  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:06:54  

Additional Information
 Earth MOID = 1.36789 au 
 Jupiter MOID = 1.92176 au 
 T_jup = 3.331 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456964.5 (2014-Nov-03.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .14444674364121 7.7428e-08  
q 2.346557647751663 2.154e-07 au
tp 2456949.387152677401
(2014-Oct-18.88715268)
0.00015839 TDB
node 74.70960529046016 0.00014132 deg
peri 56.76845482632453 0.00014579 deg
i 4.330658279105333 6.3948e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      137  
   data-arc span      5197 days (14.23 yr)  
   first obs. used      2004-10-23  
   last obs. used      2019-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66349  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:06:54  

Additional Information
 Jupiter MOID = 1.92176 au 
 T_jup = 3.331 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.995140505300732E-15 -1.642182974153009E-14 6.945779791581081E-12 2.811330486611367E-14 1.586755696394997E-12 -6.005736388422145E-15
q -1.642182974153009E-14 4.63977689370616E-14 -1.81669447984737E-11 -6.776028731802119E-14 -4.158746289188451E-12 1.717489394455445E-14
tp 6.945779791581081E-12 -1.81669447984737E-11 2.508868249947968E-8 8.209964210321109E-11 5.855943249096953E-9 -1.132623914436631E-11
node 2.811330486611367E-14 -6.776028731802119E-14 8.209964210321109E-11 1.997007832842355E-8 -1.989403277395345E-8 -1.742074065938625E-10
peri 1.586755696394997E-12 -4.158746289188451E-12 5.855943249096953E-9 -1.989403277395345E-8 2.125426897645437E-8 1.711709113346171E-10
i -6.005736388422145E-15 1.717489394455445E-14 -1.132623914436631E-11 -1.742074065938625E-10 1.711709113346171E-10 4.089347120665248E-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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1926-Mar-21 14:36 00:06 Jupiter 1.96459132945835 1.9645898830114 1.96459277591346 2.26215048934047 2.06277387786803 2424596.108447234 6.16904611369964 278.822420969738 24.9107185158622 -85.5995611561551 1442733.15657136 T 15 CATAB v2.0e-lin.ifort 2019-Jul-14 14:06:57 2019-Jul-14 14:06
1963-Mar-16 06:36 00:04 Jupiter 1.97907468690866 1.97907310575141 1.97907626806815 2.65479430506304 2.48836381567925 2438104.774921217 3.62164182439888 201.958124409306 21.1451199888947 84.7701996007373 947484.29182912 T 15 CATAB v2.0e-lin.ifort 2019-Jul-14 14:06:57 2019-Jul-14 14:06
2022-Jan-18 04:21 < 00:01 Jupiter 1.92533274934409 1.92533183105737 1.92533366763006 2.29052585490562 2.08965006416915 2459597.681231053 0.59965743715871 87.8200868525488 10.071753405204 88.5974556127335 1094591.34340126 T 15 CATAB v2.0e-lin.ifort 2019-Jul-14 14:06:57 2019-Jul-14 14:06
2080-Nov-22 14:01 00:05 Jupiter 1.92072075050794 1.92071979186175 1.92072170915696 2.16389770555216 1.94947922487769 2481091.083783317 4.60267607566079 256.432113990745 22.2957758707413 -85.881240164 1253077.81468682 T 15 CATAB v2.0e-lin.ifort 2019-Jul-14 14:06:57 2019-Jul-14 14:06
2139-Sep-29 13:33 00:09 Jupiter 1.96706616059461 1.96706354226464 1.96706877894304 2.27224157429372 2.07409688317995 2502585.064420404 8.69036652802646 372.73797910281 27.1841109212059 -82.7290636400946 1413531.54757658 T 15 CATAB v2.0e-lin.ifort 2019-Jul-14 14:06:57 2019-Jul-14 14:06
2176-Sep-22 16:13 00:11 Jupiter 1.96075068287632 1.96074799904267 1.96075336676504 2.56443570719628 2.39005286793026 2516093.175438177 11.2940162785932 613.75412271551 16.8673704779557 88.5677756652098 974935.693943958 T 15 CATAB v2.0e-lin.ifort 2019-Jul-14 14:06:57 2019-Jul-14 14:06

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