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120402 (2005 RY8)
Classification: Main-belt Asteroid          SPK-ID: 2120402
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 .2005374815507849 5.051e-08  
a 3.091511239902221 2.4284e-08 au
q 2.471547361666286 1.6638e-07 au
i 2.934852907534069 6.4167e-06 deg
node 151.8106098124507 0.0001184 deg
peri 157.3806615158689 0.0001198 deg
M 293.7396523719693 1.8828e-05 deg
tp 2459365.931416088858
(2021-May-31.43141609)
0.0001058 TDB
period 1985.430419570205
5.44
2.3393e-05
6.405e-08
d
yr
n .1813208846059338 2.1364e-09 deg/d
Q 3.711475118138157 2.9154e-08 au
  Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      9335 days (25.56 yr)  
   first obs. used      1994-10-06  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56019  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:37:19  

Additional Information
 Earth MOID = 1.45733 au 
 Jupiter MOID = 1.57258 au 
 T_jup = 3.191 
[ 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 15.3   n/a MPO469248  
diameter diameter 4.505 km 0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120402 (2005 RY8)          Discovered 2005-Sep-08 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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