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117741 (2005 GD31)
Classification: Main-belt Asteroid          SPK-ID: 2117741
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1539284332782486 5.9095e-08  
a 2.650176917077195 2.8432e-08 au
q 2.242239336321323 1.5461e-07 au
i 13.57265185841899 7.174e-06 deg
node 35.12691762063054 2.1183e-05 deg
peri 10.79270488181502 2.9653e-05 deg
M 317.3233167555649 2.8567e-05 deg
tp 2459187.309469025960
(2020-Dec-03.80946903)
0.0001273 TDB
period 1575.834946313804
4.31
2.5359e-05
6.943e-08
d
yr
n .2284503214261828 3.6764e-09 deg/d
Q 3.058114497833067 3.2809e-08 au
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      6751 days (18.48 yr)  
   first obs. used      1999-12-12  
   last obs. used      2018-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58249  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:06:21  

Additional Information
 Earth MOID = 1.2524 au 
 Jupiter MOID = 2.37004 au 
 T_jup = 3.334 
[ 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 15.1   n/a MPO439765  

117741 (2005 GD31)          Discovered 2005-Apr-04 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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