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43185 (1999 XK222)
Classification: Main-belt Asteroid          SPK-ID: 2043185
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1214702095926534 4.2269e-08  
a 2.549344519237306 1.2176e-08 au
q 2.239675106161668 1.0513e-07 au
i 8.666362882794376 4.0689e-06 deg
node 287.4558912127108 2.451e-05 deg
peri 28.04946025606648 3.2033e-05 deg
M 169.8219028515906 2.4254e-05 deg
tp 2458499.153838959611
(2019-Jan-15.65383896)
9.7695e-05 TDB
period 1486.761211215432
4.07
1.0651e-05
2.916e-08
d
yr
n .2421370676638106 1.7347e-09 deg/d
Q 2.859013932312944 1.3655e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1552  
   data-arc span      8328 days (22.80 yr)  
   first obs. used      1998-06-02  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46324  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:24:21  

Additional Information
 Earth MOID = 1.22747 au 
 Jupiter MOID = 2.39255 au 
 T_jup = 3.415 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.35   n/a MPCxxxxx  

43185 (1999 XK222)          Discovered 1999-Dec-15 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XK222 = 1998 ME46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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