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71206 (1999 XK244)
Classification: Main-belt Asteroid          SPK-ID: 2071206
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09355209239534451 4.4098e-08  
a 2.690176390612329 1.8922e-08 au
q 2.43850476035799 1.1808e-07 au
i 15.17960836566288 4.7382e-06 deg
node 170.1909833568976 1.8416e-05 deg
peri 257.1159627164321 3.4084e-05 deg
M 238.359147843951 3.2517e-05 deg
tp 2459545.060975344111
(2021-Nov-26.56097534)
0.00014828 TDB
period 1611.645657269685
4.41
1.7004e-05
4.655e-08
d
yr
n .2233741631580988 2.3568e-09 deg/d
Q 2.941848020866669 2.0693e-08 au
  Orbit Determination Parameters
   # obs. used (total)      632  
   data-arc span      10040 days (27.49 yr)  
   first obs. used      1992-02-27  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58727  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:22:30  

Additional Information
 Earth MOID = 1.50097 au 
 Jupiter MOID = 2.34579 au 
 T_jup = 3.316 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457068.5 (2015-Feb-15.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09572532714051084 4.4345e-08  
q 2.429968510339522 1.1919e-07 au
tp 2456323.354301210731
(2013-Jan-30.85430121)
0.00013155 TDB
node 170.3462296115456 1.8421e-05 deg
peri 256.6463282333563 3.3466e-05 deg
i 15.1805462503691 4.7416e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      632  
   data-arc span      10040 days (27.49 yr)  
   first obs. used      1992-02-27  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58727  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:22:30  

Additional Information
 Jupiter MOID = 2.34579 au 
 T_jup = 3.316 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.966470150153215E-15 -5.233296561736166E-15 -4.016239390404735E-13 -4.596448654552136E-15 -1.101773952949666E-13 7.741230465020639E-15
q -5.233296561736166E-15 1.420613763401916E-14 1.730348625972188E-12 1.300473698265453E-14 4.530667480267473E-13 -1.961662413045914E-14
tp -4.016239390404735E-13 1.730348625972188E-12 1.730526908847677E-8 -6.93729364731529E-12 3.703048817868639E-9 -3.108025172123917E-12
node -4.596448654552136E-15 1.300473698265453E-14 -6.93729364731529E-12 3.393359330448531E-10 -3.281485014106661E-10 2.016796594147371E-11
peri -1.101773952949666E-13 4.530667480267473E-13 3.703048817868639E-9 -3.281485014106661E-10 1.119946985610393E-9 -2.008183469541107E-11
i 7.741230465020639E-15 -1.961662413045914E-14 -3.108025172123917E-12 2.016796594147371E-11 -2.008183469541107E-11 2.24832133321833E-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 15.0   n/a MPO436281  

71206 (1999 XK244)          Discovered 1999-Dec-03 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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