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541761 (2011 WH154)
Classification: Main-belt Asteroid          SPK-ID: 2541761
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222701531983142 4.7509e-07  
a 2.525247976061193 3.7367e-08 au
q 2.216485519164458 1.2136e-06 au
i 15.4475592409758 7.9379e-06 deg
node 167.4123079864244 3.7806e-05 deg
peri 234.9804521115875 4.914e-05 deg
M 112.6632992361125 2.5618e-05 deg
tp 2458741.793981225655
(2019-Sep-15.29398123)
0.00010199 TDB
period 1465.731679068678
4.01
3.2534e-05
8.907e-08
d
yr
n .2456111204669759 5.4516e-09 deg/d
Q 2.834010432957928 4.1936e-08 au
  Orbit Determination Parameters
   # obs. used (total)      92  
   data-arc span      3399 days (9.31 yr)  
   first obs. used      2011-11-24  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45865  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:24:21  

Additional Information
 Earth MOID = 1.25405 au 
 Jupiter MOID = 2.63484 au 
 T_jup = 3.393 
[ 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 17.48   n/a MPCxxxxx  

541761 (2011 WH154)          Discovered 2011-Nov-28 by Palomar Transient Factory at Palomar
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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