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117160 (2004 QR17)
Classification: Main-belt Asteroid          SPK-ID: 2117160
[ 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2016569548770629 5.9784e-08  
a 2.617922772078764 2.0511e-08 au
q 2.090000437758041 1.6484e-07 au
i 11.10563217394781 6.0111e-06 deg
node 280.9667945031406 2.6703e-05 deg
peri 38.50522285305623 2.9531e-05 deg
M 296.976080990341 1.689e-05 deg
tp 2459271.354825773589
(2021-Feb-25.85482577)		 7.4673e-05 TDB
period 1547.154458350141
4.24		 1.8182e-05
4.978e-08		 d
yr
n .2326852358257092 2.7346e-09 deg/d
Q 3.145845106399486 2.4647e-08 au
   Orbit Determination Parameters
   # obs. used (total)      506  
   data-arc span      7673 days (21.01 yr)  
   first obs. used      1999-06-15  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60029  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:49:22  

Additional Information
 Earth MOID = 1.08845 au 
 Jupiter MOID = 2.17883 au 
 T_jup = 3.351 
[ 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 15.2   n/a MPO469211  
diameter diameter 5.311 km 0.506 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117160 (2004 QR17)          Discovered 2004-Aug-19 by LINEAR at Socorro
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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