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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 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2705682556045563 6.6065e-08  
a 2.860391532961139 3.1159e-08 AU
q 2.0864603855418 1.9386e-07 AU
i 4.695941211406669 7.946e-06 deg
node 207.7311839562868 8.1846e-05 deg
peri 120.0423896320173 8.4598e-05 deg
M 254.2383867024293 3.0535e-05 deg
tp 2456919.613375156914
(2014-Sep-19.11337516)		 0.00015637 JED
period 1767.000419430834
4.84		 2.8872e-05
7.905e-08		 d
yr
n .2037350959520197 3.329e-09 deg/d
Q 3.634322680380477 3.9589e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      594  
   data-arc span      10086 days (27.61 yr)  
   first obs. used      1985-09-07  
   last obs. used      2013-04-19  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .57532  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 14:18:40  

Additional Information
 Earth MOID = 1.0799 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 14.0 mag n/a PDS3 (MPO 5169)  

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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