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541838 (2012 BW18)
Classification: Main-belt Asteroid          SPK-ID: 2541838
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05555559068715889 4.4014e-08  
a 2.776905303957097 2.975e-08 au
q 2.622632689513456 1.2616e-07 au
i 4.715801212496234 7.1608e-06 deg
node 162.2533303988241 6.122e-05 deg
peri 269.16604759671 9.797e-05 deg
M 37.19244756162556 7.2755e-05 deg
tp 2459025.880680882610
(2020-Jun-25.38068088)
0.00034221 TDB
period 1690.207528775846
4.63
2.7162e-05
7.437e-08
d
yr
n .2129915965175793 3.4228e-09 deg/d
Q 2.931177918400738 3.1403e-08 au
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      5608 days (15.35 yr)  
   first obs. used      2005-09-11  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62343  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:24:36  

Additional Information
 Earth MOID = 1.6418 au 
 Jupiter MOID = 2.21821 au 
 T_jup = 3.328 
[ 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 17.15   .40806 MPCxxxxx autocmod 2.8

541838 (2012 BW18)          Discovered 2010-Oct-12 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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