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226984 (2004 XS31)
Classification: Main-belt Asteroid          SPK-ID: 2226984
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1199228383351022 4.7751e-08  
a 3.150744246750159 3.6933e-08 au
q 2.772898053811886 1.4393e-07 au
i 3.954683838065698 5.0265e-06 deg
node 78.76212437615635 9.3337e-05 deg
peri 35.30065245558307 9.7258e-05 deg
M 189.689537363982 2.6992e-05 deg
tp 2459566.900136554139
(2021-Dec-18.40013655)
0.00015829 TDB
period 2042.763807782141
5.59
3.5918e-05
9.834e-08
d
yr
n .1762318279913415 3.0987e-09 deg/d
Q 3.528590439688432 4.1362e-08 au
  Orbit Determination Parameters
   # obs. used (total)      240  
   data-arc span      6695 days (18.33 yr)  
   first obs. used      2000-03-05  
   last obs. used      2018-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56521  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:33:15  

Additional Information
 Earth MOID = 1.79088 au 
 Jupiter MOID = 1.57789 au 
 T_jup = 3.193 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456883.5 (2014-Aug-14.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1158224201845263 4.7957e-08  
q 2.789039091845099 1.44e-07 au
tp 2457521.039732406808
(2016-May-12.53973241)
0.00015643 TDB
node 78.86484930119626 9.3599e-05 deg
peri 35.13367685617258 9.7824e-05 deg
i 3.949323814770495 5.0148e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      240  
   data-arc span      6695 days (18.33 yr)  
   first obs. used      2000-03-05  
   last obs. used      2018-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56521  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:33:15  

Additional Information
 Jupiter MOID = 1.57789 au 
 T_jup = 3.193 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.299848277234449E-15 -6.741730800870611E-15 1.771475863262927E-12 -1.292004071924286E-16 3.255492420984127E-13 5.407559070772587E-17
q -6.741730800870611E-15 2.073621176440593E-14 -4.930103465510994E-12 -7.493686412856806E-15 -9.575849284834212E-13 4.397214632556582E-16
tp 1.771475863262927E-12 -4.930103465510994E-12 2.447042868589858E-8 -2.300854037037009E-11 4.51160016438997E-9 5.071898299220123E-13
node -1.292004071924286E-16 -7.493686412856806E-15 -2.300854037037009E-11 8.760851607921547E-9 -8.743795357727777E-9 -5.787250208297658E-11
peri 3.255492420984127E-13 -9.575849284834212E-13 4.51160016438997E-9 -8.743795357727777E-9 9.569475710269863E-9 5.780405517877286E-11
i 5.407559070772587E-17 4.397214632556582E-16 5.071898299220123E-13 -5.787250208297658E-11 5.780405517877286E-11 2.514821572871773E-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 15.6   n/a MPO454631  

226984 (2004 XS31)          Discovered 2004-Dec-09 by CSS at Catalina
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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