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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1309939045234864 8.8261e-08  
a 2.564570981801063 2.6435e-08 AU
q 2.22862781546731 2.3555e-07 AU
i 14.63410091417441 6.3115e-06 deg
node 280.2212082792521 3.2982e-05 deg
peri 41.84692885700225 4.7878e-05 deg
M 136.7926434490482 3.4156e-05 deg
tp 2456430.492258400287
(2013-May-17.99225840)
0.00014521 JED
period 1500.10104200033
4.11
2.3194e-05
6.35e-08
d
yr
n .2399838343688857 3.7106e-09 deg/d
Q 2.900514148134815 2.9898e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      739  
   data-arc span      15359 days (42.05 yr)  
   first obs. used      1972-09-15  
   last obs. used      2014-10-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55904  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 15:51:26  

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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