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344968 (2004 XT31)
Classification: Main-belt Asteroid          SPK-ID: 2344968
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05842750469104203 1.2282e-07  
a 2.602049346513816 4.1344e-08 au
q 2.450018096114057 3.3874e-07 au
i 21.41754253907775 1.1035e-05 deg
node 279.0173716118599 2.9311e-05 deg
peri 116.9499749237043 9.8715e-05 deg
M 209.4299417515823 9.3173e-05 deg
tp 2459241.721147873980
(2021-Jan-27.22114787)
0.00040049 TDB
period 1533.104362978876
4.20
3.654e-05
1e-07
d
yr
n .2348176736647642 5.5966e-09 deg/d
Q 2.754080596913576 4.376e-08 au
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      6285 days (17.21 yr)  
   first obs. used      2001-01-04  
   last obs. used      2018-03-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70901  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:30:06  

Additional Information
 Earth MOID = 1.51352 au 
 Jupiter MOID = 2.53925 au 
 T_jup = 3.314 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456637.5 (2013-Dec-11.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05979987814162688 1.2294e-07  
q 2.444939612893291 3.3955e-07 au
tp 2456180.414256470115
(2012-Sep-09.91425647)
0.00037827 TDB
node 279.0524762491467 2.9329e-05 deg
peri 117.5776909393626 9.6491e-05 deg
i 21.41440116202692 1.1034e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      6285 days (17.21 yr)  
   first obs. used      2001-01-04  
   last obs. used      2018-03-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70901  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:30:06  

Additional Information
 Jupiter MOID = 2.53925 au 
 T_jup = 3.314 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.511306044994334E-14 -4.151997117074519E-14 -3.532027163130576E-12 -7.407677189122444E-14 -1.341347006340718E-12 -7.582614271971894E-14
q -4.151997117074519E-14 1.152909169097118E-13 1.011541302635527E-11 2.108171110761529E-13 3.845882988984282E-12 2.099965815560162E-13
tp -3.532027163130576E-12 1.011541302635527E-11 1.430904870660058E-7 1.848942685323209E-10 3.485319935413081E-8 -6.677628263939632E-11
node -7.407677189122444E-14 2.108171110761529E-13 1.848942685323209E-10 8.602042011195196E-10 -7.510252936901426E-10 -3.111977461968451E-11
peri -1.341347006340718E-12 3.845882988984282E-12 3.485319935413081E-8 -7.510252936901426E-10 9.310463331253531E-9 1.625134270422502E-11
i -7.582614271971894E-14 2.099965815560162E-13 -6.677628263939632E-11 -3.111977461968451E-11 1.625134270422502E-11 1.217484547512876E-10

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 15.8   n/a MPO291953  

344968 (2004 XT31)          Discovered 2004-Dec-09 by CSS at Catalina
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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