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18354 (1990 RK5)
Classification: Main-belt Asteroid          SPK-ID: 2018354
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2704528734918383 6.3808e-08  
a 2.861294082820909 2.281e-08 AU
q 2.0874488762168 1.9067e-07 AU
i 4.695046060983493 6.8921e-06 deg
node 207.7256099234988 7.6485e-05 deg
peri 119.9746668666401 7.7497e-05 deg
M 335.7693214210236 1.4225e-05 deg
tp 2456919.488570736915
(2014-Sep-18.98857074)
7.0375e-05 JED
period 1767.836807610316
4.84
2.114e-05
5.788e-08
d
yr
n .2036387060447238 2.4351e-09 deg/d
Q 3.635139289425018 2.898e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      640  
   data-arc span      10527 days (28.82 yr)  
   first obs. used      1985-09-07  
   last obs. used      2014-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55225  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:40:43  

Additional Information
 Earth MOID = 1.07996 AU 
 T_jup = 3.242 
[ 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 14.1 mag n/a MPO263511  

18354 (1990 RK5)          Discovered 1990-Sep-15 by Holt, H. E. at Palomar (675)
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 RK5 = 1995 UT5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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