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173955 (2001 XU11)
Classification: Main-belt Asteroid          SPK-ID: 2173955
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1925256642215437 6.9888e-08  
a 3.149927479525739 4.2829e-08 au
q 2.543485599280353 2.217e-07 au
i 16.39703260146144 7.9988e-06 deg
node 284.9724131969293 3.6216e-05 deg
peri 162.4043710746274 4.7705e-05 deg
M 97.15490135929608 3.1867e-05 deg
tp 2458449.424029634292
(2018-Nov-26.92402963)
0.00017402 TDB
period 2041.969540970282
5.59
4.1647e-05
1.14e-07
d
yr
n .176300377051138 3.5957e-09 deg/d
Q 3.756369359771125 5.1075e-08 au
  Orbit Determination Parameters
   # obs. used (total)      236  
   data-arc span      6739 days (18.45 yr)  
   first obs. used      2001-11-11  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55906  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:33:13  

Additional Information
 Earth MOID = 1.56468 au 
 Jupiter MOID = 1.46931 au 
 T_jup = 3.117 
[ 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 15.3   n/a MPO469866  

173955 (2001 XU11)          Discovered 2001-Dec-09 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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