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541385 (2011 GD40)
Classification: Main-belt Asteroid          SPK-ID: 2541385
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1956912826385209 5.3377e-08  
a 3.060012867276905 4.2129e-08 au
q 2.46119502438911 1.6215e-07 au
i 5.710387553549951 7.3797e-06 deg
node 134.2556117073716 8.25e-05 deg
peri 162.3020095094703 8.5515e-05 deg
M 200.1388752388407 2.3926e-05 deg
tp 2460068.707772364020
(2023-May-04.20777236)
0.00013436 TDB
period 1955.164512435528
5.35
4.0377e-05
1.105e-07
d
yr
n .1841277282347723 3.8025e-09 deg/d
Q 3.658830710164701 5.0373e-08 au
  Orbit Determination Parameters
   # obs. used (total)      117  
   data-arc span      6730 days (18.43 yr)  
   first obs. used      2002-09-05  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56666  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:04  

Additional Information
 Earth MOID = 1.44413 au 
 Jupiter MOID = 1.57693 au 
 T_jup = 3.197 
[ 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 16.55   .4248 MPCxxxxx autocmod 2.8

541385 (2011 GD40)          Discovered 2007-Aug-21 by LONEOS at Anderson Mesa
Reference: Last Updated: 2019-12-13

[ show close-approach data ]
Alternate Designations
 2011 GD40 = 2016 CQ213 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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