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18351 (1990 QN5)
Classification: Main-belt Asteroid          SPK-ID: 2018351
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1720568784788105 7.4907e-08  
a 2.791330134572331 3.1986e-08 AU
q 2.311062584813977 2.142e-07 AU
i 8.638545456134583 9.356e-06 deg
node 345.2078244603546 4.1179e-05 deg
peri 40.21200925185084 4.698e-05 deg
M 356.2839036333849 2.5807e-05 deg
tp 2456818.083272228832
(2014-Jun-09.58327223)
0.00012225 JED
period 1703.394470403657
4.66
2.9279e-05
8.016e-08
d
yr
n .211342707901764 3.6327e-09 deg/d
Q 3.271597684330684 3.7489e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      932  
   data-arc span      8361 days (22.89 yr)  
   first obs. used      1990-08-22  
   last obs. used      2013-07-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51106  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 18:52:22  

Additional Information
 Earth MOID = 1.32043 AU 
 T_jup = 3.291 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1 mag n/a MPO266052  

18351 (1990 QN5)          Discovered 1990-Aug-29 by Holt, H. E. at Palomar (675)
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 QN5 = 1997 DV 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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