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164617 (1990 RP7)
Classification: Main-belt Asteroid          SPK-ID: 2164617
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4007051134367806 1.2798e-07  
a 3.170189298031026 6.0477e-08 au
q 1.899878235747436 3.9755e-07 au
i 1.033869885066375 9.044e-06 deg
node 130.487630116572 0.00065793 deg
peri 225.7460832856686 0.00065797 deg
M 174.3543942062692 1.7668e-05 deg
tp 2456401.980348067005
(2013-Apr-19.48034807)
8.5424e-05 JED
period 2061.703556898096
5.64
5.8996e-05
1.615e-07
d
yr
n .1746128820486842 4.9966e-09 deg/d
Q 4.440500360314616 8.4711e-08 au
  Orbit Determination Parameters
   # obs. used (total)      224  
   data-arc span      8897 days (24.36 yr)  
   first obs. used      1990-09-13  
   last obs. used      2015-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55114  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 18:27:28  

Additional Information
 Earth MOID = .893916 au 
 Jupiter MOID = 1.00185 au 
 T_jup = 3.071 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2 mag n/a MPO352004  

164617 (1990 RP7)          Discovered 1990-Sep-13 by Debehogne, H. at La Silla
Reference: 20071026/Numbers.arcLast Updated: 2007-10-28

[ show close-approach data ]
Alternate Designations
 1990 RP7 = 2001 OZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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