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541607 (2011 UK81)
Classification: Main-belt Asteroid          SPK-ID: 2541607
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .220184440540948 3.4389e-07  
a 2.574122134105013 9.0536e-08 au
q 2.00734049212303 9.5194e-07 au
i 7.906852845592079 9.9695e-06 deg
node 41.62043623054199 3.9879e-05 deg
peri 313.0747173024238 0.00012768 deg
M 108.5991231338697 7.1207e-05 deg
tp 2458745.442823097828
(2019-Sep-18.94282310)
0.00031804 TDB
period 1508.489009463189
4.13
7.9584e-05
2.179e-07
d
yr
n .2386494019788116 1.2591e-08 deg/d
Q 3.140903776086997 1.1047e-07 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      4400 days (12.05 yr)  
   first obs. used      2007-11-08  
   last obs. used      2019-11-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44982  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:49  

Additional Information
 Earth MOID = 1.01148 au 
 Jupiter MOID = 2.33127 au 
 T_jup = 3.381 
[ 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 17.9   n/a MPO535741  

541607 (2011 UK81)          Discovered 2007-Nov-08 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-12-13

Alternate Designations
 2011 UK81 = 2007 WA34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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