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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1307893060850865 7.8777e-08  
a 2.564902758014644 2.1835e-08 au
q 2.229440906118183 2.0509e-07 au
i 14.61454835147463 6.2024e-06 deg
node 280.1363405719005 2.5694e-05 deg
peri 42.38912208241077 3.5556e-05 deg
M 232.185851227023 2.7612e-05 deg
tp 2457933.198182406590
(2017-Jun-28.69818241)
0.00011604 JED
period 1500.392151474527
4.11
1.9159e-05
5.245e-08
d
yr
n .2399372721632848 3.0639e-09 deg/d
Q 2.900364609911104 2.4691e-08 au
  Orbit Determination Parameters
   # obs. used (total)      872  
   data-arc span      15530 days (42.52 yr)  
   first obs. used      1972-09-15  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55607  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 18:01:44  

Additional Information
 Earth MOID = 1.23382 au 
 Jupiter MOID = 2.37772 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 13.5 mag n/a MPO337700  

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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