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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09459693532388805 4.4502e-08  
a 2.688343509369702 1.9021e-08 au
q 2.434034452285462 1.1988e-07 au
i 15.17683458479454 5.0507e-06 deg
node 170.3247727714326 1.8636e-05 deg
peri 256.5946365321786 3.4434e-05 deg
M 149.4617103494648 3.2045e-05 deg
tp 2457932.074491315380
(2017-Jun-27.57449132)
0.00014069 TDB
period 1609.998858997568
4.41
1.7087e-05
4.678e-08
d
yr
n .2236026429386083 2.3731e-09 deg/d
Q 2.942652566453941 2.0821e-08 au
  Orbit Determination Parameters
   # obs. used (total)      599  
   data-arc span      9935 days (27.20 yr)  
   first obs. used      1992-02-27  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58519  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:36:34  

Additional Information
 Earth MOID = 1.49564 au 
 Jupiter MOID = 2.35152 au 
 T_jup = 3.317 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456859.5 (2014-Jul-21.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09585506147025098 4.4533e-08  
q 2.429400937336043 1.2016e-07 au
tp 2456323.500518072470
(2013-Jan-31.00051807)
0.00013393 TDB
node 170.3488279425885 1.8633e-05 deg
peri 256.647874199015 3.412e-05 deg
i 15.18114673682831 5.0522e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      599  
   data-arc span      9935 days (27.20 yr)  
   first obs. used      1992-02-27  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58519  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:36:34  

Additional Information
 Jupiter MOID = 2.35152 au 
 T_jup = 3.317 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.983200730999227E-15 -5.295504658016616E-15 -3.176226607946086E-13 -3.863502506571076E-15 -9.240999732447943E-14 7.402805687240233E-15
q -5.295504658016616E-15 1.443925023609929E-14 1.383584693398956E-12 1.091827884762912E-14 3.777817839838048E-13 -1.871552249517629E-14
tp -3.176226607946086E-13 1.383584693398956E-12 1.793855089353866E-8 -1.028937321301591E-11 3.855506209273914E-9 -5.522528395402463E-13
node -3.863502506571076E-15 1.091827884762912E-14 -1.028937321301591E-11 3.471952614069052E-10 -3.364766955948372E-10 1.621100389338049E-11
peri -9.240999732447943E-14 3.777817839838048E-13 3.855506209273914E-9 -3.364766955948372E-10 1.164182733510892E-9 -1.56740894330663E-11
i 7.402805687240233E-15 -1.871552249517629E-14 -5.522528395402463E-13 1.621100389338049E-11 -1.56740894330663E-11 2.552479997325372E-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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