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541640 (2011 UA198)
Classification: Main-belt Asteroid          SPK-ID: 2541640
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06308116810459535 5.7406e-08  
a 2.987413432970615 4.7354e-08 au
q 2.79896390400747 1.5389e-07 au
i 5.364138675886189 6.0351e-06 deg
node 276.7265839841059 6.0074e-05 deg
peri 308.8294674577878 8.2514e-05 deg
M 100.0049762334497 5.3781e-05 deg
tp 2458676.585363653526
(2019-Jul-12.08536365)
0.00028332 TDB
period 1885.998839142211
5.16
4.4843e-05
1.228e-07
d
yr
n .1908802871605875 4.5385e-09 deg/d
Q 3.175862961933761 5.0341e-08 au
  Orbit Determination Parameters
   # obs. used (total)      128  
   data-arc span      4596 days (12.58 yr)  
   first obs. used      2008-02-12  
   last obs. used      2020-09-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6378  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:56  

Additional Information
 Earth MOID = 1.79162 au 
 Jupiter MOID = 1.84425 au 
 T_jup = 3.248 
[ 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 16.96   .40963 E2021B25 autocmod 2.8

541640 (2011 UA198)          Discovered 2011-Oct-24 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2019-12-13

[ show close-approach data ]
Alternate Designations
 2011 UA198 = 2016 UY53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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