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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3927887084534465 1.245e-07  
a 3.182209059036897 5.5085e-08 AU
q 1.932273272708937 3.8251e-07 AU
i 1.012067506893643 9.0943e-06 deg
node 129.8501179476418 0.00066201 deg
peri 226.1510408752396 0.00066204 deg
M 105.7353745690085 1.683e-05 deg
tp 2456391.511213595116
(2013-Apr-09.01121360)
8.8398e-05 JED
period 2073.440076222299
5.68
5.3838e-05
1.474e-07
d
yr
n .1736245016812357 4.5082e-09 deg/d
Q 4.432144845364857 7.6722e-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 = .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 16.2 mag n/a MPO325609  

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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