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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2700410267839917 5.7579e-08  
a 2.860272642421233 1.7984e-08 au
q 2.087881681179642 1.7002e-07 au
i 4.695670283486735 4.8186e-06 deg
node 207.717196528542 7.1842e-05 deg
peri 119.9225831884878 7.2481e-05 deg
M 138.8232821183765 8.2598e-06 deg
tp 2456919.151377201160
(2014-Sep-18.65137720)
4.0214e-05 JED
period 1766.890254031194
4.84
1.6664e-05
4.562e-08
d
yr
n .2037477988113032 1.9216e-09 deg/d
Q 3.632663603662824 2.2841e-08 au
  Orbit Determination Parameters
   # obs. used (total)      816  
   data-arc span      11098 days (30.38 yr)  
   first obs. used      1985-09-07  
   last obs. used      2016-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59308  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 19:19:38  

Additional Information
 Earth MOID = 1.08088 au 
 Jupiter MOID = 1.76522 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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