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279226 Demisroussos (2009 UR103)
Classification: Main-belt Asteroid          SPK-ID: 2279226
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .130451146970538 8.3015e-08  
a 2.979581706310194 4.0958e-08 au
q 2.590891855229597 2.6321e-07 au
i 6.12750253173124 9.2841e-06 deg
node 300.7368889501799 5.6359e-05 deg
peri 161.7213058261288 7.97e-05 deg
M 325.8950277045286 4.953e-05 deg
tp 2459178.469908005005
(2020-Nov-24.96990801)
0.00025865 TDB
period 1878.587272457897
5.14
3.8736e-05
1.061e-07
d
yr
n .1916333647512606 3.9514e-09 deg/d
Q 3.368271557390792 4.6302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      195  
   data-arc span      7730 days (21.16 yr)  
   first obs. used      1998-08-27  
   last obs. used      2019-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56796  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 05:50:06  

Additional Information
 Earth MOID = 1.60861 au 
 Jupiter MOID = 1.77116 au 
 T_jup = 3.238 
[ show covariance matrix ]

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 16.3   n/a MPO494511  
diameter diameter 3.111 km 0.942 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

279226 Demisroussos           Discovered 2009 Oct. 24 by T. V. Kryachko at Zelenchukskaya Stn.
Artemios (Demis) Ventouris Roussos (b. 1946) is a Greek singer and performer. He had a string of international hit records as a solo performer in the 1970s after being a member of Aphrodite's Child, a progressive rock group that also included Vangelis.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-05-14Last Updated: 2014-05-15

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