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541729 (2011 WL99)
Classification: Main-belt Asteroid          SPK-ID: 2541729
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09852165327285337 4.6196e-08  
a 2.53918601603793 2.1031e-08 au
q 2.289021211770564 1.1259e-07 au
i 6.167883507773112 4.8593e-06 deg
node 131.3714870543529 6.3766e-05 deg
peri 350.1981284312113 7.2366e-05 deg
M 39.73300559731762 3.5215e-05 deg
tp 2459037.386795082252
(2020-Jul-06.88679508)
0.00014472 TDB
period 1477.883509883618
4.05
1.8361e-05
5.027e-08
d
yr
n .2435915940548993 3.0263e-09 deg/d
Q 2.789350820305298 2.3103e-08 au
  Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      8751 days (23.96 yr)  
   first obs. used      1997-05-03  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62875  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 13:25:33  

Additional Information
 Earth MOID = 1.30492 au 
 Jupiter MOID = 2.26218 au 
 T_jup = 3.432 
[ 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 17.4   .39528 MPO535742 autocmod 2.8

541729 (2011 WL99)          Discovered 2007-Nov-15 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13

Alternate Designations
 2011 WL99 = 2015 XZ48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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