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JPL Small-Body Database Browser
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173232 (1998 XC9)
Classification: Amor [NEO]          SPK-ID: 2173232
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .533261428161015 2.178e-07  
a 2.755066447222938 5.9384e-08 au
q 1.285895778898341 6.2566e-07 au
i 9.372276286224137 1.8253e-05 deg
node 318.7546108811034 6.5972e-05 deg
peri 122.5884338385062 9.4313e-05 deg
M 168.8120657765475 5.8344e-05 deg
tp 2457817.255187669462
(2017-Mar-04.75518767)
0.00025267 TDB
period 1670.307931734146
4.57
5.4004e-05
1.479e-07
d
yr
n .2155291208048334 6.9684e-09 deg/d
Q 4.224237115547536 9.1051e-08 au
  Orbit Determination Parameters
   # obs. used (total)      159  
   data-arc span      6509 days (17.82 yr)  
   first obs. used      1998-12-12  
   last obs. used      2016-10-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58917  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:25:57  

Additional Information
 Earth MOID = .336933 au 
 Jupiter MOID = 1.23049 au 
 T_jup = 3.103 
[ 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 18.1   n/a MPO133285  

173232 (1998 XC9)          Discovered 1998-Dec-12 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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