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541647 (2011 UB239)
Classification: Inner Main-belt Asteroid          SPK-ID: 2541647
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02397409715198084 1.6808e-07  
a 1.929227286944977 1.2255e-08 au
q 1.882975804539506 3.2055e-07 au
i 20.26695985740971 1.0283e-05 deg
node 229.3902592835042 1.373e-05 deg
peri 30.36616633450154 0.00014464 deg
M 293.1558824314174 0.00014844 deg
tp 2459382.233175145342
(2021-Jun-16.73317515)
0.00040401 TDB
period 978.7539342590271
2.68
9.326e-06
2.553e-08
d
yr
n .3678146134580196 3.5047e-09 deg/d
Q 1.975478769350449 1.2549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      5876 days (16.09 yr)  
   first obs. used      2003-11-26  
   last obs. used      2019-12-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49265  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:24:00  

Additional Information
 Earth MOID = .875833 au 
 Jupiter MOID = 3.02333 au 
 T_jup = 3.839 
[ 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 18.3   n/a MPO528804  

541647 (2011 UB239)          Discovered 2011-Oct-24 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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