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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1720569046260727 7.3862e-08  
a 2.791330139737325 3.3229e-08 AU
q 2.311062516104658 2.1469e-07 AU
i 8.638545732227527 8.9737e-06 deg
node 345.2078051722083 4.0509e-05 deg
peri 40.21199629031286 4.6115e-05 deg
M 356.2839292548144 2.543e-05 deg
tp 2456818.083151045964
(2014-Jun-09.58315105)
0.00012048 JED
period 1703.394475131523
4.66
3.0416e-05
8.327e-08
d
yr
n .2113427073151706 3.7738e-09 deg/d
Q 3.271597763369992 3.8946e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      929  
   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      .48589  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:05:34  

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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