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357486 (2004 JM31)
Classification: Main-belt Asteroid          SPK-ID: 2357486
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1681506165263071 5.3781e-08  
a 2.77623421682731 2.4773e-08 au
q 2.309408721646369 1.444e-07 au
i 9.24415336475422 6.0092e-06 deg
node 212.1229879735817 3.1095e-05 deg
peri 30.29905212073858 3.457e-05 deg
M 161.482660754672 1.5234e-05 deg
tp 2458242.610349330309
(2018-May-04.11034933)
6.8932e-05 TDB
period 1689.594864030595
4.63
2.2615e-05
6.192e-08
d
yr
n .2130688294951406 2.8519e-09 deg/d
Q 3.243059712008252 2.8939e-08 au
  Orbit Determination Parameters
   # obs. used (total)      206  
   data-arc span      9833 days (26.92 yr)  
   first obs. used      1992-11-29  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59571  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 23:21:57  

Additional Information
 Earth MOID = 1.30259 au 
 Jupiter MOID = 1.7762 au 
 T_jup = 3.296 
[ show covariance matrix ]

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 16.3   n/a MPO450330  

357486 (2004 JM31)          Discovered 2004-May-12 by LONEOS at Anderson Mesa
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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