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541626 (2011 UR154)
Classification: Main-belt Asteroid          SPK-ID: 2541626
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05591182404725769 8.8041e-08  
a 2.440849288685425 3.5693e-08 au
q 2.304376952730571 1.9768e-07 au
i 13.74143250411339 8.347e-06 deg
node 235.7724829723157 2.889e-05 deg
peri 174.8341547917948 8.7287e-05 deg
M 149.8321120928505 8.9545e-05 deg
tp 2458620.788021181326
(2019-May-17.28802118)
0.00033788 TDB
period 1392.867720141288
3.81
3.0552e-05
8.365e-08
d
yr
n .2584595757330659 5.6692e-09 deg/d
Q 2.577321624640278 3.7689e-08 au
  Orbit Determination Parameters
   # obs. used (total)      60  
   data-arc span      4487 days (12.28 yr)  
   first obs. used      2007-10-16  
   last obs. used      2020-01-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54522  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:53  

Additional Information
 Earth MOID = 1.31482 au 
 Jupiter MOID = 2.68522 au 
 T_jup = 3.460 
[ 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 17.7   .41139 MPO535741 autocmod 2.8

541626 (2011 UR154)          Discovered 2011-Oct-23 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-12-13

Alternate Designations
 2011 UR154 = 2011 WW128 = 2014 QW4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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