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JPL Small-Body Database Browser
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173664 (2001 JU2)
Classification: Amor [NEO]          SPK-ID: 2173664
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 83 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2688384471783031 2.8388e-08  
a 1.51749669232765 3.3236e-09 au
q 1.109535237964073 4.2917e-08 au
i 4.015104316159118 4.701e-06 deg
node 100.759360986868 5.5545e-05 deg
peri 227.2775227596945 5.6575e-05 deg
M 2.180459244540674 9.3223e-06 deg
tp 2458996.364428541728
(2020-May-26.86442854)
1.768e-05 TDB
period 682.7945666516753
1.87
2.2432e-06
6.142e-09
d
yr
n .5272449688130756 1.7322e-09 deg/d
Q 1.925458146691226 4.2172e-09 au
  Orbit Determination Parameters
   # obs. used (total)      240  
   data-arc span      6474 days (17.72 yr)  
   first obs. used      2001-05-15  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65605  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Feb-05 08:32:53  

Additional Information
 Earth MOID = .109667 au 
 Jupiter MOID = 3.41333 au 
 T_jup = 4.467 
[ 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 19.6   n/a MPO469862  

173664 (2001 JU2)          Discovered 2001-May-15 by LONEOS at Anderson Mesa
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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