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55555 DNA (2001 YR2)
Classification: Main-belt Asteroid          SPK-ID: 2055555
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1309939444158758 7.9423e-08  
a 2.564570965095471 2.1736e-08 AU
q 2.228627698643186 2.0734e-07 AU
i 14.63410101908819 6.2371e-06 deg
node 280.2211917194718 2.6522e-05 deg
peri 41.84697156897067 3.6803e-05 deg
M 136.7926220171748 2.81e-05 deg
tp 2456430.492353275311
(2013-May-17.99235328)
0.00011706 JED
period 1500.101027342863
4.11
1.9071e-05
5.221e-08
d
yr
n .2399838367137644 3.0509e-09 deg/d
Q 2.900514231547757 2.4583e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      849  
   data-arc span      15500 days (42.44 yr)  
   first obs. used      1972-09-15  
   last obs. used      2015-02-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56283  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 16:47:28  

Additional Information
 Earth MOID = 1.23536 AU 
 T_jup = 3.376 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4 mag n/a MPO266205  

55555 DNA           Discovered 2001 Dec. 19 by C. W. Juels and P. R. Holvorcem at Fountain Hills.
Deoxyribonucleic acid, the sine qua non of carbon-based life, is self-replicating, plays a central role in cellular protein synthesis via RNA and is responsible for the transmission of hereditary characteristics. Structurally, DNA consists of two long chains of nucleotides twisted into a double helix joined by hydrogen bonds.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040306/MPCPages.arcLast Updated: 2004-03-08

[ show close-approach data ]
Alternate Designations
 2001 YR2 = 1972 RJ = 1999 CX69 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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