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117173 (2004 RK51)
Classification: Main-belt Asteroid          SPK-ID: 2117173
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1137111927174516 4.5159e-08  
a 2.801524980135179 1.9774e-08 au
q 2.482960233216273 1.3182e-07 au
i 5.042933698869119 5.297e-06 deg
node 124.8337481121992 5.4716e-05 deg
peri 259.2353035885622 5.9178e-05 deg
M 16.12664754021048 2.3734e-05 deg
tp 2458523.775905916745
(2019-Feb-09.27590592)
0.0001127 TDB
period 1712.735012103523
4.69
1.8133e-05
4.965e-08
d
yr
n .2101901330071254 2.2254e-09 deg/d
Q 3.120089727054085 2.2022e-08 au
  Orbit Determination Parameters
   # obs. used (total)      636  
   data-arc span      7977 days (21.84 yr)  
   first obs. used      1997-01-09  
   last obs. used      2018-11-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57575  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:49:36  

Additional Information
 Earth MOID = 1.49173 au 
 Jupiter MOID = 2.33862 au 
 T_jup = 3.310 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO417610  
diameter diameter 2.749 km 0.552 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.194   0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117173 (2004 RK51)          Discovered 2004-Sep-08 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2004 RK51 = 2002 ET37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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