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100167 (1993 UN2)
Classification: Main-belt Asteroid          SPK-ID: 2100167
[ 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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1815411685759283 1.1863e-07  
a 2.56535855470336 1.5784e-08 au
q 2.099640364866258 3.1093e-07 au
i 3.442666309519527 7.8407e-06 deg
node 312.144255799981 7.7939e-05 deg
peri 190.9349992918775 7.9127e-05 deg
M 87.91349388068109 1.4426e-05 deg
tp 2458634.000338804574
(2019-May-30.50033880)		 5.8007e-05 TDB
period 1500.792110588009
4.11		 1.3851e-05
3.792e-08		 d
yr
n .2398733291974412 2.2139e-09 deg/d
Q 3.031076744540462 1.865e-08 au
   Orbit Determination Parameters
   # obs. used (total)      589  
   data-arc span      9267 days (25.37 yr)  
   first obs. used      1993-10-21  
   last obs. used      2019-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53801  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:12:56  

Additional Information
 Earth MOID = 1.11238 au 
 Jupiter MOID = 1.99218 au 
 T_jup = 3.407 
[ 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 MPO417504  

100167 (1993 UN2)          Discovered 1993-Oct-21 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1993 UN2 = 1997 WC17 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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