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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1746265382393883 3.1757e-08  
a 2.324930339819084 1.012e-08 au
q 1.918935802928752 7.3031e-08 au
i 2.288114187513849 4.6748e-06 deg
node 173.0351448812284 9.1259e-05 deg
peri 71.63486996572132 9.2642e-05 deg
M 175.0423174731344 1.5169e-05 deg
tp 2458370.915687456993
(2018-Sep-09.41568746)		 5.3007e-05 TDB
period 1294.831762897957
3.55		 8.4539e-06
2.315e-08		 d
yr
n .2780283974454609 1.8152e-09 deg/d
Q 2.730924876709415 1.1887e-08 au
   Orbit Determination Parameters
   # obs. used (total)      494  
   data-arc span      8217 days (22.50 yr)  
   first obs. used      1997-05-03  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 11:13:36  

Additional Information
 Earth MOID = .907258 au 
 Jupiter MOID = 2.28884 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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