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78510 (2002 RU85)
Classification: Main-belt Asteroid          SPK-ID: 2078510
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2431531567785479 4.641e-08  
a 3.183749190169996 1.792e-08 au
q 2.409610524189016 1.554e-07 au
i 2.113687744818313 5.3411e-06 deg
node 139.2729642683926 0.00013068 deg
peri 251.5741933482928 0.00013114 deg
M 15.83776885932171 1.007e-05 deg
tp 2458909.215256869111
(2020-Feb-29.71525687)
5.778e-05 TDB
period 2074.945519095513
5.68
1.7518e-05
4.796e-08
d
yr
n .1734985312563421 1.4648e-09 deg/d
Q 3.957887856150976 2.2277e-08 au
  Orbit Determination Parameters
   # obs. used (total)      811  
   data-arc span      15044 days (41.19 yr)  
   first obs. used      1979-08-22  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54388  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:35  

Additional Information
 Earth MOID = 1.41628 au 
 Jupiter MOID = 1.48903 au 
 T_jup = 3.151 
[ 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 14.4   n/a MPO502630  
diameter diameter 7.833 km 0.247 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78510 (2002 RU85)          Discovered 2002-Sep-05 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 RU85 = 1979 QP2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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