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JPL Small-Body Database Browser
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117735 (2005 GQ20)
Classification: Main-belt Asteroid          SPK-ID: 2117735
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .328168789445045 4.8377e-08  
a 2.630842693997339 1.7882e-08 au
q 1.767482231887892 1.2572e-07 au
i 5.030364690044939 4.4435e-06 deg
node 47.99974121910895 5.8077e-05 deg
peri 271.4806684905178 5.8347e-05 deg
M 43.11846196531167 7.2451e-06 deg
tp 2458413.818402382087
(2018-Oct-22.31840238)
3.0288e-05 TDB
period 1558.621807904809
4.27
1.5891e-05
4.351e-08
d
yr
n .2309732856130977 2.3549e-09 deg/d
Q 3.494203156106786 2.3751e-08 au
  Orbit Determination Parameters
   # obs. used (total)      888  
   data-arc span      7767 days (21.26 yr)  
   first obs. used      1997-09-29  
   last obs. used      2019-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56559  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:10:00  

Additional Information
 Earth MOID = .762763 au 
 Jupiter MOID = 1.8663 au 
 T_jup = 3.316 
[ 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 14.8   n/a MPO449688  
diameter diameter 2.640 km 0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.369   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

117735 (2005 GQ20)          Discovered 2005-Apr-02 by Mt. Lemmon Survey at Mt. Lemmon
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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