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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3927887376551691 1.3694e-07  
a 3.182209044122677 6.2266e-08 AU
q 1.932273170726869 4.3119e-07 AU
i 1.012067192895692 9.1082e-06 deg
node 129.8503432882944 0.00076214 deg
peri 226.1508240582312 0.0007621 deg
M 105.7353717371269 1.7733e-05 deg
tp 2456391.511234186763
(2013-Apr-09.01123419)
9.7243e-05 JED
period 2073.440061645754
5.68
6.0856e-05
1.666e-07
d
yr
n .1736245029018378 5.0959e-09 deg/d
Q 4.432144917518486 8.6723e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      8565 days (23.45 yr)  
   first obs. used      1990-09-13  
   last obs. used      2014-02-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55223  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 11:27:05  

Additional Information
 Earth MOID = .928349 AU 
 T_jup = 3.073 
[ 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 16.1 mag n/a MPO232155  

164617 (1990 RP7)          Discovered 1990-Sep-13 by Debehogne, H. at La Silla (809)
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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