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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1309481642946622 7.0201e-08  
a 2.563880017383762 2.1032e-08 au
q 2.228144635635592 1.8545e-07 au
i 14.61572240019388 5.7919e-06 deg
node 280.1108247219222 2.5349e-05 deg
peri 42.58332768747654 3.5068e-05 deg
M 280.017077969956 2.7201e-05 deg
tp 2457933.649939416495
(2017-Jun-29.14993942)
0.00011384 JED
period 1499.494831470239
4.11
1.8451e-05
5.052e-08
d
yr
n .2400808541947582 2.9541e-09 deg/d
Q 2.899615399131932 2.3786e-08 au
  Orbit Determination Parameters
   # obs. used (total)      927  
   data-arc span      15919 days (43.58 yr)  
   first obs. used      1972-09-15  
   last obs. used      2016-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55058  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 14:43:13  

Additional Information
 Earth MOID = 1.23416 au 
 Jupiter MOID = 2.38059 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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