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160908 (2001 UM138)
Classification: Main-belt Asteroid          SPK-ID: 2160908
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06750733060893879 1.1206e-07  
a 2.1615523212912 1.2602e-08 au
q 2.015631694109276 2.4414e-07 au
i 5.357639689699717 1.0166e-05 deg
node 43.03640934691939 4.3852e-05 deg
peri 197.8311522603998 6.04e-05 deg
M 93.00259053498758 4.3959e-05 deg
tp 2458700.625456206949
(2019-Aug-05.12545621)		 0.00014175 TDB
period 1160.77235208718
3.18		 1.0151e-05
2.779e-08		 d
yr
n .3101383310454334 2.7122e-09 deg/d
Q 2.307472948473124 1.3453e-08 au
   Orbit Determination Parameters
   # obs. used (total)      344  
   data-arc span      7027 days (19.24 yr)  
   first obs. used      2000-04-06  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6016  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:27:16  

Additional Information
 Earth MOID = 1.004 au 
 Jupiter MOID = 2.68006 au 
 T_jup = 3.688 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a MPO475386  

160908 (2001 UM138)          Discovered 2001-Oct-23 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

Alternate Designations
 2001 UM138 = 2001 SZ168 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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