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120247 (2004 FR139)
Classification: Main-belt Asteroid          SPK-ID: 2120247
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1744372987421748 3.0052e-08  
a 2.325280709195743 9.8631e-09 au
q 1.919665023466349 6.9666e-08 au
i 2.288079914930932 4.3211e-06 deg
node 173.0262596491683 9.1086e-05 deg
peri 71.64892495202209 9.2266e-05 deg
M 230.6267939740654 1.4895e-05 deg
tp 2459665.928903407320
(2022-Mar-27.42890341)		 5.5157e-05 TDB
period 1295.124472628797
3.55		 8.2402e-06
2.256e-08		 d
yr
n .2779655605374247 1.7686e-09 deg/d
Q 2.730896394925137 1.1584e-08 au
   Orbit Determination Parameters
   # obs. used (total)      528  
   data-arc span      8658 days (23.70 yr)  
   first obs. used      1997-05-03  
   last obs. used      2021-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5322  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:24:31  

Additional Information
 Earth MOID = .9065 au 
 Jupiter MOID = 2.28776 au 
 T_jup = 3.553 
[ 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 16.7   n/a MPO449699  

120247 (2004 FR139)          Discovered 2004-Mar-25 by LONEOS at Anderson Mesa
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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Alternate Designations
 2004 FR139 = 1997 JM17 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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