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JPL Small-Body Database Browser
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173350 (1999 XX154)
Classification: Main-belt Asteroid          SPK-ID: 2173350
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2102758479869937 5.1234e-08  
a 2.459896797263314 1.1841e-08 au
q 1.94263991225828 1.2554e-07 au
i 2.589734574781963 5.7002e-06 deg
node 160.7405025919698 7.6614e-05 deg
peri 211.3060509512246 7.7596e-05 deg
M 52.75423608869245 9.2793e-06 deg
tp 2458393.995939670644
(2018-Oct-02.49593967)
3.6476e-05 TDB
period 1409.203643733604
3.86
1.0175e-05
2.786e-08
d
yr
n .2554634325569871 1.8446e-09 deg/d
Q 2.977153682268347 1.4331e-08 au
  Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      8496 days (23.26 yr)  
   first obs. used      1995-10-18  
   last obs. used      2019-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50412  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:33:32  

Additional Information
 Earth MOID = .942465 au 
 Jupiter MOID = 2.48253 au 
 T_jup = 3.458 
[ 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 16.1   n/a MPO459806  

173350 (1999 XX154)          Discovered 1999-Dec-08 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 1999 XX154 = 1995 UB59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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