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173239 (1999 FJ61)
Classification: Main-belt Asteroid          SPK-ID: 2173239
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 .1577472518930902 5.3857e-08  
a 2.804168994150705 2.1715e-08 au
q 2.36181904147962 1.4611e-07 au
i 7.247984460468015 6.6351e-06 deg
node 348.4616161465589 3.222e-05 deg
peri 216.1520696290727 3.7208e-05 deg
M 165.918825884742 1.735e-05 deg
tp 2458210.007295118774
(2018-Apr-01.50729512)
8.1794e-05 TDB
period 1715.160243207888
4.70
1.9923e-05
5.455e-08
d
yr
n .209892924830561 2.438e-09 deg/d
Q 3.246518946821789 2.514e-08 au
  Orbit Determination Parameters
   # obs. used (total)      375  
   data-arc span      7492 days (20.51 yr)  
   first obs. used      1999-03-22  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54454  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 19:46:03  

Additional Information
 Earth MOID = 1.3633 au 
 Jupiter MOID = 1.74577 au 
 T_jup = 3.294 
[ 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 15.8   n/a MPO433112  

173239 (1999 FJ61)          Discovered 1999-Mar-22 by LONEOS at Anderson Mesa
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 1999 FJ61 = 2003 AL85 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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