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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3283279264198341 4.7876e-08  
a 2.631367913390319 1.7781e-08 au
q 1.76741634273919 1.2416e-07 au
i 5.029458347780285 4.3714e-06 deg
node 47.99131882294554 5.6998e-05 deg
peri 271.5237151244214 5.7257e-05 deg
M 135.43023242782 7.8269e-06 deg
tp 2458413.978533363804
(2018-Oct-22.47853336)
3.0205e-05 TDB
period 1559.088574270635
4.27
1.5803e-05
4.327e-08
d
yr
n .2309041358784977 2.3404e-09 deg/d
Q 3.495319484041448 2.3619e-08 au
  Orbit Determination Parameters
   # obs. used (total)      915  
   data-arc span      8160 days (22.34 yr)  
   first obs. used      1997-09-29  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55467  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 05:49:52  

Additional Information
 Earth MOID = .763544 au 
 Jupiter MOID = 1.86839 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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