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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2105242654826173 5.1184e-08  
a 2.459323406538155 1.1707e-08 au
q 1.941576152792501 1.253e-07 au
i 2.590208609683307 5.6771e-06 deg
node 160.73557655 7.5457e-05 deg
peri 211.256332901373 7.6403e-05 deg
M 154.9965116813933 9.1279e-06 deg
tp 2458393.985322659669
(2018-Oct-02.48532266)
3.5884e-05 TDB
period 1408.710954033235
3.86
1.0059e-05
2.754e-08
d
yr
n .2555527796311198 1.8248e-09 deg/d
Q 2.977070660283808 1.4172e-08 au
  Orbit Determination Parameters
   # obs. used (total)      629  
   data-arc span      8872 days (24.29 yr)  
   first obs. used      1995-10-18  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50228  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:02:51  

Additional Information
 Earth MOID = .942207 au 
 Jupiter MOID = 2.48592 au 
 T_jup = 3.459 
[ 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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