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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2703752771029509 6.3531e-08  
a 2.860999995501466 1.9948e-08 AU
q 2.087456328926216 1.8908e-07 AU
i 4.695239016436174 5.454e-06 deg
node 207.7203705477276 7.4657e-05 deg
peri 119.9671738929294 7.5397e-05 deg
M 16.50648313090052 9.0213e-06 deg
tp 2456919.454806372819
(2014-Sep-18.95480637)
4.429e-05 JED
period 1767.564263956777
4.84
1.8487e-05
5.061e-08
d
yr
n .2036701054331811 2.1301e-09 deg/d
Q 3.634543662076716 2.5342e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      679  
   data-arc span      10616 days (29.07 yr)  
   first obs. used      1985-09-07  
   last obs. used      2014-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54561  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:37:22  

Additional Information
 Earth MOID = 1.08179 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 14.2 mag n/a MPO302177  

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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