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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2701837165620283 5.9143e-08  
a 2.860171872300169 1.8493e-08 au
q 2.087400005835935 1.7504e-07 au
i 4.695711757951416 4.8801e-06 deg
node 207.7215154950613 7.2138e-05 deg
peri 119.9253506796773 7.2802e-05 deg
M 98.0485779385298 8.2243e-06 deg
tp 2456919.300217526672
(2014-Sep-18.80021753)
4.0333e-05 JED
period 1766.796881021603
4.84
1.7135e-05
4.691e-08
d
yr
n .2037585666281229 1.9761e-09 deg/d
Q 3.632943738764403 2.3489e-08 au
  Orbit Determination Parameters
   # obs. used (total)      806  
   data-arc span      11060 days (30.28 yr)  
   first obs. used      1985-09-07  
   last obs. used      2015-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59615  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:39:33  

Additional Information
 Earth MOID = 1.07909 au 
 Jupiter MOID = 1.76418 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 14.3 mag n/a MPO347667  

18354 (1990 RK5)          Discovered 1990-Sep-15 by Holt, H. E. at Palomar
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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