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JPL Small-Body Database Browser
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173998 (2001 XX208)
Classification: Main-belt Asteroid          SPK-ID: 2173998
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09174190250997588 6.3841e-08  
a 3.008251049186171 3.5174e-08 au
q 2.7322683747062 1.9541e-07 au
i 5.518222706716478 8.3395e-06 deg
node 153.1380488754751 7.5067e-05 deg
peri 269.9508793558865 9.0442e-05 deg
M 123.8289523665058 5.1801e-05 deg
tp 2457944.975028920156
(2017-Jul-10.47502892)
0.00026925 TDB
period 1905.765857489205
5.22
3.3425e-05
9.151e-08
d
yr
n .1889004352687325 3.3131e-09 deg/d
Q 3.284233723666141 3.8401e-08 au
  Orbit Determination Parameters
   # obs. used (total)      239  
   data-arc span      6826 days (18.69 yr)  
   first obs. used      2000-08-28  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57603  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:42:31  

Additional Information
 Earth MOID = 1.75218 au 
 Jupiter MOID = 1.99432 au 
 T_jup = 3.237 
[ 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 15.6   n/a MPO433119  

173998 (2001 XX208)          Discovered 2001-Dec-11 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 2001 XX208 = 2000 QS247 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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