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541261 (2011 DT39)
Classification: Main-belt Asteroid          SPK-ID: 2541261
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09475900874698061 5.8899e-08  
a 3.001970053156488 5.5705e-08 au
q 2.717506346631259 1.9967e-07 au
i 9.572561913242613 8.3747e-06 deg
node 329.6478850214865 3.4612e-05 deg
peri 115.0350102813022 6.2182e-05 deg
M 24.85214172201709 4.6522e-05 deg
tp 2459069.349702236802
(2020-Aug-07.84970224)
0.00024655 TDB
period 1899.800336037964
5.20
5.288e-05
1.448e-07
d
yr
n .1894935973907556 5.2744e-09 deg/d
Q 3.286433759681717 6.0984e-08 au
  Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      4531 days (12.41 yr)  
   first obs. used      2008-09-06  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54557  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:22:39  

Additional Information
 Earth MOID = 1.7506 au 
 Jupiter MOID = 1.89812 au 
 T_jup = 3.225 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.86   .36086 MPCxxxxx autocmod 2.8

541261 (2011 DT39)          Discovered 2011-Feb-25 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13

[ show close-approach data ]
Alternate Designations
 2011 DT39 = 2014 UK123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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