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201497 Marcelroche (2003 JT17)
Classification: Main-belt Asteroid          SPK-ID: 2201497
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2872480203568156 9.0218e-08  
a 2.55418657478532 2.4264e-08 au
q 1.820501537556281 2.4396e-07 au
i 12.37227361217567 8.3355e-06 deg
node 166.9079063407742 3.6656e-05 deg
peri 112.0859515287507 5.2597e-05 deg
M 307.3985323613657 4.289e-05 deg
tp 2458818.357599754989
(2019-Nov-30.85759975)
0.00018046 TDB
period 1490.999005020008
4.08
2.1246e-05
5.817e-08
d
yr
n .2414488532775171 3.4405e-09 deg/d
Q 3.287871612014359 3.1233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      533  
   data-arc span      7240 days (19.82 yr)  
   first obs. used      1999-07-12  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62835  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:14:36  

Additional Information
 Earth MOID = .846117 au 
 Jupiter MOID = 2.04639 au 
 T_jup = 3.348 
[ 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 15.7   n/a MPO245372  
diameter diameter 4.493 km 1.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201497 Marcelroche           Discovered 2003 May 2 by I. R. Ferrín and C. Leal at Mérida.
Born in Caracas, Marcel Roche (1920-2003) conducted research in biomedicine and the management of science. He was first president of the National Council of Scientific Research (1969), a promoter of the National Observatory of Venezuela in Mérida and a winner of UNESCO's Kalinga prize for the popularization of science.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20091202/MPCPages.arcLast Updated: 2010-04-12

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