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JPL Small-Body Database Browser
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379367 (2009 WT212)
Classification: Main-belt Asteroid          SPK-ID: 2379367
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0578192712410792 8.4919e-08  
a 2.652443870305716 2.7854e-08 au
q 2.499081498716772 2.2713e-07 au
i 5.1462908065672 7.544e-06 deg
node 292.2991993913785 8.0803e-05 deg
peri 71.42855591917466 0.00010378 deg
M 217.394471221343 6.2134e-05 deg
tp 2459625.531050561587
(2022-Feb-15.03105056)
0.00027272 TDB
period 1577.857325233294
4.32
2.4854e-05
6.805e-08
d
yr
n .2281575109756976 3.5939e-09 deg/d
Q 2.80580624189466 2.9464e-08 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      5278 days (14.45 yr)  
   first obs. used      2004-08-23  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65973  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:12:28  

Additional Information
 Earth MOID = 1.50163 au 
 Jupiter MOID = 2.48189 au 
 T_jup = 3.382 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457230.5 (2015-Jul-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05657878102444495 8.4342e-08  
q 2.5038601385682 2.2494e-07 au
tp 2456470.977277746750
(2013-Jun-27.47727775)
0.00028391 TDB
node 292.3390151205004 8.078e-05 deg
peri 71.95276879265222 0.00010503 deg
i 5.145926251650655 7.5444e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      5278 days (14.45 yr)  
   first obs. used      2004-08-23  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65973  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:12:28  

Additional Information
 Jupiter MOID = 2.48189 au 
 T_jup = 3.382 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.113609906177842E-15 -1.884016192303459E-14 -9.672249296115439E-12 -2.124653146051531E-15 -2.497375089698695E-12 -1.128244009626701E-14
q -1.884016192303459E-14 5.0597831965921E-14 2.450550879156589E-11 5.103884699266186E-15 6.425305671936341E-12 3.075666236383754E-14
tp -9.672249296115439E-12 2.450550879156589E-11 8.060507457165339E-8 -1.466528101617165E-11 1.908545264963072E-8 6.47114589288415E-12
node -2.124653146051531E-15 5.103884699266186E-15 -1.466528101617165E-11 6.525351534413392E-9 -6.502594521033842E-9 1.871118031836995E-10
peri -2.497375089698695E-12 6.425305671936341E-12 1.908545264963072E-8 -6.502594521033842E-9 1.103172212897848E-8 -1.843476651215597E-10
i -1.128244009626701E-14 3.075666236383754E-14 6.47114589288415E-12 1.871118031836995E-10 -1.843476651215597E-10 5.691835127949535E-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 17.3   n/a MPO423396  

379367 (2009 WT212)          Discovered 2009-Nov-18 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

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Alternate Designations
 2009 WT212 = 2005 YC86 = 2006 AJ87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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