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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05568284652985015 7.5504e-08  
a 3.052393708526802 3.7271e-08 au
q 2.882427738106224 2.5179e-07 au
i 12.72427011949272 6.2743e-06 deg
node 98.36665355452978 3.1002e-05 deg
peri 54.95779359960224 8.9198e-05 deg
M 11.73686863994335 7.794e-05 deg
tp 2458936.994842911286
(2020-Mar-28.49484291)
0.00042187 TDB
period 1947.866782297677
5.33
3.5676e-05
9.768e-08
d
yr
n .1848175672339095 3.385e-09 deg/d
Q 3.222359678947381 3.9346e-08 au
  Orbit Determination Parameters
   # obs. used (total)      326  
   data-arc span      5851 days (16.02 yr)  
   first obs. used      2004-01-28  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 00:14:07  

Additional Information
 Earth MOID = 1.91579 au 
 Jupiter MOID = 1.90169 au 
 T_jup = 3.197 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457042.5 (2015-Jan-20.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05747074122276184 7.5418e-08  
q 2.877732407669771 2.5217e-07 au
tp 2456989.713596394363
(2014-Nov-28.21359639)
0.00041345 TDB
node 98.40102405515104 3.0995e-05 deg
peri 55.08061677166376 8.6601e-05 deg
i 12.72544728995523 6.2748e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      326  
   data-arc span      5851 days (16.02 yr)  
   first obs. used      2004-01-28  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 00:14:07  

Additional Information
 Jupiter MOID = 1.90169 au 
 T_jup = 3.197 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.687864945842837E-15 -1.889120011392614E-14 1.259387130070251E-11 -1.811162299429354E-15 2.544874820285771E-12 -1.472898171103614E-14
q -1.889120011392614E-14 6.358782425088874E-14 -4.165610549716137E-11 4.902609207223843E-15 -8.422390393240009E-12 4.959578423072696E-14
tp 1.259387130070251E-11 -4.165610549716137E-11 1.709422044271015E-7 5.437628520635541E-11 3.349294485892517E-8 -4.881526429628389E-11
node -1.811162299429354E-15 4.902609207223843E-15 5.437628520635541E-11 9.606992259527853E-10 -9.264972579898457E-10 -4.644717265971361E-12
peri 2.544874820285771E-12 -8.422390393240009E-12 3.349294485892517E-8 -9.264972579898457E-10 7.499727960367976E-9 -5.207873991200118E-12
i -1.472898171103614E-14 4.959578423072696E-14 -4.881526429628389E-11 -4.644717265971361E-12 -5.207873991200118E-12 3.937347363369593E-11

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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