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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1578640826481053 5.3803e-08  
a 2.804753093275893 2.1979e-08 au
q 2.361983319151459 1.4603e-07 au
i 7.247328403412765 6.6344e-06 deg
node 348.4661025546093 3.2223e-05 deg
peri 216.265192411627 3.7209e-05 deg
M 81.82054775791873 1.7225e-05 deg
tp 2458210.557777891565
(2018-Apr-02.05777789)
8.18e-05 TDB
period 1715.696164420392
4.70
2.0167e-05
5.521e-08
d
yr
n .2098273618986714 2.4664e-09 deg/d
Q 3.247522867400328 2.5448e-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 = 1.36375 au 
 Jupiter MOID = 1.74612 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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