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117814 (2005 HG4)
Classification: Main-belt Asteroid          SPK-ID: 2117814
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 .110834388861377 3.9341e-08  
a 2.746644164693858 1.9894e-08 au
q 2.442221537280347 1.074e-07 au
i 12.16182071637322 5.8672e-06 deg
node 173.3045033459789 2.067e-05 deg
peri 114.3291970299817 3.4561e-05 deg
M 58.18479448413114 2.7972e-05 deg
tp 2458731.774407378723
(2019-Sep-05.27440738)
0.00012833 TDB
period 1662.654550924711
4.55
1.8064e-05
4.946e-08
d
yr
n .2165212249290032 2.3524e-09 deg/d
Q 3.05106679210737 2.2099e-08 au
  Orbit Determination Parameters
   # obs. used (total)      491  
   data-arc span      6672 days (18.27 yr)  
   first obs. used      2000-03-06  
   last obs. used      2018-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54319  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:12:31  

Additional Information
 Earth MOID = 1.45616 au 
 Jupiter MOID = 2.19938 au 
 T_jup = 3.306 
[ 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 15.4   n/a MPO396008  

117814 (2005 HG4)          Discovered 2005-Apr-30 by Lowe, A. at New Mexico Skies
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2005 HG4 = 2002 UQ49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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