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201921 (2004 CN51)
Classification: Main-belt Asteroid          SPK-ID: 2201921
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05568285209234084 7.5076e-08  
a 3.052393702339356 3.5324e-08 au
q 2.882427715284401 2.4926e-07 au
i 12.72427246582166 5.9944e-06 deg
node 98.36664455447682 3.0202e-05 deg
peri 54.95779728798951 8.7811e-05 deg
M 11.73687516188251 7.6131e-05 deg
tp 2458936.994807815857
(2020-Mar-28.49480782)
0.00041217 TDB
period 1947.866776374955
5.33
3.3813e-05
9.257e-08
d
yr
n .1848175677958695 3.2082e-09 deg/d
Q 3.222359689394312 3.7291e-08 au
  Orbit Determination Parameters
   # obs. used (total)      367  
   data-arc span      5936 days (16.25 yr)  
   first obs. used      2004-01-28  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62918  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 07:09:03  

Additional Information
 Earth MOID = 1.91579 au 
 Jupiter MOID = 1.90169 au 
 T_jup = 3.197 
[ 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 15.3   n/a MPO422784  
diameter diameter 3.214 km 0.236 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.118   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201921 (2004 CN51)          Discovered 2004-Feb-15 by LINEAR at Socorro
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

[ show close-approach data ]
Alternate Designations
 2004 CN51 = 2005 JB138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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