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541643 (2011 UL202)
Classification: Main-belt Asteroid          SPK-ID: 2541643
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .214486309790158 6.1707e-08  
a 2.559533884663608 4.993e-08 au
q 2.010548906959243 1.4375e-07 au
i 5.706202056601798 1.9963e-05 deg
node 66.72773280061308 8.93e-05 deg
peri 65.15465203561426 0.0001495 deg
M 27.16469310298624 0.00011729 deg
tp 2459087.639478146693
(2020-Aug-26.13947815)
0.00048436 TDB
period 1495.683669723622
4.09
4.3765e-05
1.198e-07
d
yr
n .2406926058546339 7.0429e-09 deg/d
Q 3.108518862367973 6.0639e-08 au
  Orbit Determination Parameters
   # obs. used (total)      74  
   data-arc span      4849 days (13.28 yr)  
   first obs. used      2007-12-05  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .67883  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:56  

Additional Information
 Earth MOID = 1.03298 au 
 Jupiter MOID = 1.96873 au 
 T_jup = 3.396 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.2   .35523 MPO504439 autocmod 2.8

541643 (2011 UL202)          Discovered 2011-Oct-26 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2019-12-13

[ show close-approach data ]
Alternate Designations
 2011 UL202 = 2011 WD156 = 2011 WN86 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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