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382444 (1999 YK2)
Classification: Main-belt Asteroid          SPK-ID: 2382444
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1452430644682375 9.983e-08  
a 2.781525504898009 2.2054e-08 au
q 2.377528216670061 2.8439e-07 au
i 6.055298541844028 7.2052e-06 deg
node 99.91294603690574 0.00011271 deg
peri 331.8607871592606 0.00012588 deg
M 87.46796880402803 5.0881e-05 deg
tp 2458188.810740166889
(2018-Mar-11.31074017)
0.00023771 TDB
period 1694.427520913173
4.64
2.0152e-05
5.517e-08
d
yr
n .2124611383825885 2.5268e-09 deg/d
Q 3.185522793125957 2.5257e-08 au
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      7021 days (19.22 yr)  
   first obs. used      1999-12-16  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5791  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:40:13  

Additional Information
 Earth MOID = 1.39418 au 
 Jupiter MOID = 2.08271 au 
 T_jup = 3.309 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457285.5 (2015-Sep-20.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1458941440043857 9.9366e-08  
q 2.375500404696032 2.8311e-07 au
tp 2456495.293601587143
(2013-Jul-21.79360159)
0.00023055 TDB
node 99.92220966250731 0.0001127 deg
peri 332.1166822624737 0.00012581 deg
i 6.055833916324961 7.2064e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      7021 days (19.22 yr)  
   first obs. used      1999-12-16  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5791  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:40:13  

Additional Information
 Jupiter MOID = 2.08271 au 
 T_jup = 3.309 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.873512935850577E-15 -2.807633251290576E-14 -1.517538020147095E-11 -1.484526515904265E-13 -3.538916631840057E-12 -3.685721893912568E-14
q -2.807633251290576E-14 8.015390686751426E-14 4.340568926345309E-11 4.301344192393174E-13 1.015699267801418E-11 1.055121410878716E-13
tp -1.517538020147095E-11 4.340568926345309E-11 5.315353303797476E-8 3.362645995105812E-10 1.310438835155681E-8 8.501595284413105E-11
node -1.484526515904265E-13 4.301344192393174E-13 3.362645995105812E-10 1.270182690538085E-8 -1.254677403171027E-8 -4.097669856684904E-10
peri -3.538916631840057E-12 1.015699267801418E-11 1.310438835155681E-8 -1.254677403171027E-8 1.582869099685759E-8 4.288189341173405E-10
i -3.685721893912568E-14 1.055121410878716E-13 8.501595284413105E-11 -4.097669856684904E-10 4.288189341173405E-10 5.193276002148239E-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 17.0   n/a MPO427903  

382444 (1999 YK2)          Discovered 1999-Dec-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-01-21

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