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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1577471685325124 4.514e-08  
a 2.804168993456313 1.8899e-08 au
q 2.361819274651914 1.2636e-07 au
i 7.247985050455555 5.6207e-06 deg
node 348.461613618585 2.9807e-05 deg
peri 216.1520814005589 3.3166e-05 deg
M 165.9188226051646 1.5878e-05 deg
tp 2458210.007311037398
(2018-Apr-01.50731104)
7.2515e-05 TDB
period 1715.160242570805
4.70
1.7339e-05
4.747e-08
d
yr
n .2098929249085241 2.1219e-09 deg/d
Q 3.246518712260712 2.188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      416  
   data-arc span      7911 days (21.66 yr)  
   first obs. used      1999-03-22  
   last obs. used      2020-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53308  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:25:56  

Additional Information
 Earth MOID = 1.3633 au 
 Jupiter MOID = 1.74577 au 
 T_jup = 3.294 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457192.5 (2015-Jun-19.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1569115957617524 4.5218e-08  
q 2.365753321314681 1.2654e-07 au
tp 2456494.786723928226
(2013-Jul-21.28672393)
6.9156e-05 TDB
node 348.5378339629511 2.9779e-05 deg
peri 216.4275227238756 3.3175e-05 deg
i 7.249983096070221 5.6217e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      416  
   data-arc span      7911 days (21.66 yr)  
   first obs. used      1999-03-22  
   last obs. used      2020-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53308  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:25:56  

Additional Information
 Jupiter MOID = 1.74577 au 
 T_jup = 3.294 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.044693297817595E-15 -5.676330471962375E-15 -8.447904996632807E-13 -4.355723697547897E-15 -2.184653280973964E-13 1.132677880443911E-15
q -5.676330471962375E-15 1.601359763997996E-14 2.477980271111287E-12 7.602285800071116E-15 6.546592070208883E-13 -2.068671921834617E-15
tp -8.447904996632807E-13 2.477980271111287E-12 4.782521729966585E-9 -6.408030287902431E-12 1.015484280301619E-9 -3.480302418447186E-12
node -4.355723697547897E-15 7.602285800071116E-15 -6.408030287902431E-12 8.86810801008234E-10 -8.811748478213831E-10 -1.140878830528782E-12
peri -2.184653280973964E-13 6.546592070208883E-13 1.015484280301619E-9 -8.811748478213831E-10 1.100580956584319E-9 5.16745183488747E-13
i 1.132677880443911E-15 -2.068671921834617E-15 -3.480302418447186E-12 -1.140878830528782E-12 5.16745183488747E-13 3.160331544661887E-11

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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