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173191 (1998 KJ61)
Classification: Main-belt Asteroid          SPK-ID: 2173191
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2081304282658671 3.9164e-08  
a 2.34079999257456 1.134e-08 au
q 1.853608287635278 8.7407e-08 au
i 6.116892685982601 5.5592e-06 deg
node 133.2556010374442 5.2335e-05 deg
peri 123.5397523773444 5.6012e-05 deg
M 101.0804435598231 2.3726e-05 deg
tp 2458833.209643096851
(2019-Dec-15.70964310)
8.4554e-05 TDB
period 1308.111874349642
3.58
9.5059e-06
2.603e-08
d
yr
n .275205819210977 1.9999e-09 deg/d
Q 2.827991697513841 1.3701e-08 au
  Orbit Determination Parameters
   # obs. used (total)      374  
   data-arc span      8264 days (22.63 yr)  
   first obs. used      1998-05-23  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60167  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:56:01  

Additional Information
 Earth MOID = .845298 au 
 Jupiter MOID = 2.25243 au 
 T_jup = 3.527 
[ 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 16.81   n/a E2021B55  

173191 (1998 KJ61)          Discovered 1998-May-23 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 1998 KJ61 = 2002 RJ220 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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