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541724 (2011 WE78)
Classification: Main-belt Asteroid          SPK-ID: 2541724
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1422507475013973 1.0038e-07  
a 2.526603936363392 5.1455e-08 au
q 2.167192637775726 2.496e-07 au
i 14.21090728428521 1.5962e-05 deg
node 252.6001086600413 2.5058e-05 deg
peri 64.209350223833 6.1234e-05 deg
M 189.9301366547486 5.7834e-05 deg
tp 2459893.493309086602
(2022-Nov-09.99330909)
0.00024491 TDB
period 1466.912399198695
4.02
4.4811e-05
1.227e-07
d
yr
n .2454134276843328 7.4969e-09 deg/d
Q 2.886015234951058 5.8775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      4398 days (12.04 yr)  
   first obs. used      2007-12-05  
   last obs. used      2019-12-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53568  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:24:13  

Additional Information
 Earth MOID = 1.19165 au 
 Jupiter MOID = 2.40394 au 
 T_jup = 3.397 
[ 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 17.0   n/a MPO535742  

541724 (2011 WE78)          Discovered 2011-Nov-23 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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