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541257 (2011 DU20)
Classification: Main-belt Asteroid          SPK-ID: 2541257
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 .05341080261239511 1.8726e-07  
a 2.167459888116344 5.838e-08 au
q 2.051694115861879 4.5887e-07 au
i 5.214603898178361 4.876e-06 deg
node 143.8184334215168 8.4445e-05 deg
peri 322.0879544451208 0.00020086 deg
M 66.18694831039868 0.00019142 deg
tp 2458986.213462685921
(2020-May-16.71346269)
0.00061172 TDB
period 1165.534223927174
3.19
4.709e-05
1.289e-07
d
yr
n .3088712391361695 1.2479e-08 deg/d
Q 2.283225660370811 6.1499e-08 au
  Orbit Determination Parameters
   # obs. used (total)      95  
   data-arc span      5349 days (14.64 yr)  
   first obs. used      2005-04-07  
   last obs. used      2019-11-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54205  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:22:39  

Additional Information
 Earth MOID = 1.07093 au 
 Jupiter MOID = 2.75737 au 
 T_jup = 3.684 
[ 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 18.4   .2556 MPO504308 autocmod 2.8

541257 (2011 DU20)          Discovered 2011-Feb-25 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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