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249956 (2001 UM8)
Classification: Main-belt Asteroid          SPK-ID: 2249956
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1092202164633407 4.7521e-08  
a 2.756371892125438 1.9283e-08 au
q 2.45532035741403 1.3471e-07 au
i 4.64163495341093 4.9152e-06 deg
node 51.63644377292054 6.5284e-05 deg
peri 298.6507769916231 6.9526e-05 deg
M 56.83240286573414 2.2426e-05 deg
tp 2458736.624746631629
(2019-Sep-10.12474663)
0.00010395 TDB
period 1671.495246066547
4.58
1.754e-05
4.802e-08
d
yr
n .2153760238607746 2.2601e-09 deg/d
Q 3.057423426836846 2.1389e-08 au
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      9826 days (26.90 yr)  
   first obs. used      1992-11-27  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57285  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:49:07  

Additional Information
 Earth MOID = 1.45375 au 
 Jupiter MOID = 2.35494 au 
 T_jup = 3.330 
[ 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 16.3   n/a MPO450109  

249956 (2001 UM8)          Discovered 2001-Oct-17 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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