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65666 (1987 RU)
Classification: Main-belt Asteroid          SPK-ID: 2065666
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1831114110663948 3.5331e-08  
a 2.162972951966688 4.6195e-09 au
q 1.766907922633623 7.5109e-08 au
i 2.523024822043944 3.3999e-06 deg
node 153.1668486181478 9.1766e-05 deg
peri 179.783259641368 9.2526e-05 deg
M 110.9631007627941 1.2806e-05 deg
tp 2458642.361390403291
(2019-Jun-07.86139040)
4.0851e-05 TDB
period 1161.916876587909
3.18
3.7223e-06
1.019e-08
d
yr
n .3098328350795435 9.9257e-10 deg/d
Q 2.559037981299754 5.4654e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1423  
   data-arc span      11834 days (32.40 yr)  
   first obs. used      1987-09-12  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50487  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:43:39  

Additional Information
 Earth MOID = .756565 au 
 Jupiter MOID = 2.79586 au 
 T_jup = 3.672 
[ 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 15.5   n/a MPO502572  

65666 (1987 RU)          Discovered 1987-Sep-12 by Debehogne, H. at La Silla
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1987 RU = 2000 RY50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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