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180213 (2003 UM8)
Classification: Main-belt Asteroid          SPK-ID: 2180213
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1065346389178636 6.9371e-08  
a 2.135997467983682 1.1428e-08 au
q 1.90843974900257 1.5371e-07 au
i 4.324996827084696 7.1307e-06 deg
node 331.4202059107967 4.9232e-05 deg
peri 10.14617317643647 5.511e-05 deg
M 229.1359099997455 2.7611e-05 deg
tp 2459614.993301025694
(2022-Feb-04.49330103)
8.9629e-05 TDB
period 1140.248546174582
3.12
9.1512e-06
2.505e-08
d
yr
n .3157206393358391 2.5338e-09 deg/d
Q 2.363555186964795 1.2646e-08 au
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      10280 days (28.15 yr)  
   first obs. used      1992-01-31  
   last obs. used      2020-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52522  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:25:36  

Additional Information
 Earth MOID = .898134 au 
 Jupiter MOID = 2.95723 au 
 T_jup = 3.707 
[ 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 16.91   n/a E2021B55  

180213 (2003 UM8)          Discovered 2003-Oct-19 by Young, J. W. at Wrightwood
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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