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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2489006120511509 4.8222e-08  
a 3.136698415931327 3.4056e-08 au
q 2.355972260386144 1.6513e-07 au
i 17.94362260087081 6.0497e-06 deg
node 81.47870482221676 1.7193e-05 deg
peri 235.71372036173 2.1947e-05 deg
M 298.8637609206833 1.6442e-05 deg
tp 2459345.090889960805
(2021-May-10.59088996)
9.6861e-05 TDB
period 2029.119263043755
5.56
3.3046e-05
9.048e-08
d
yr
n .1774168756645612 2.8894e-09 deg/d
Q 3.91742457147651 4.2532e-08 au
  Orbit Determination Parameters
   # obs. used (total)      276  
   data-arc span      7507 days (20.55 yr)  
   first obs. used      1999-10-08  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55932  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:02:56  

Additional Information
 Earth MOID = 1.39121 au 
 Jupiter MOID = 1.56591 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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