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214106 (2004 QN18)
Classification: Main-belt Asteroid          SPK-ID: 2214106
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2485982827028084 5.5833e-08  
a 3.136504448238598 3.748e-08 au
q 2.356774828716763 1.8226e-07 au
i 17.94387853353854 7.0303e-06 deg
node 81.4788434109463 1.8954e-05 deg
peri 235.7314352982551 2.3813e-05 deg
M 227.8376622899407 1.6109e-05 deg
tp 2459345.356307432634
(2021-May-10.85630743)
0.00010047 TDB
period 2028.931050417842
5.55
3.6368e-05
9.957e-08
d
yr
n .1774333336393373 3.1804e-09 deg/d
Q 3.916234067760433 4.6798e-08 au
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      7121 days (19.50 yr)  
   first obs. used      1999-10-08  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59721  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:05:31  

Additional Information
 Earth MOID = 1.3913 au 
 Jupiter MOID = 1.56491 au 
 T_jup = 3.090 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO437026  
diameter diameter 3.239 km 0.985 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.140   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

214106 (2004 QN18)          Discovered 2004-Aug-20 by Siding Spring Survey at Siding Spring
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2004 QN18 = 1999 TR281 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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