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33012 Eddieirizarry (1997 EJ55)
Classification: Main-belt Asteroid          SPK-ID: 2033012
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1033288542829248 4.8766e-08  
a 3.197357674448493 1.9715e-08 au
q 2.866978369215014 1.5281e-07 au
i 1.5841913912151 5.3712e-06 deg
node 355.736399671266 0.00013819 deg
peri 191.6284271276141 0.00013962 deg
M 22.08264945770772 1.8159e-05 deg
tp 2458872.404481191432
(2020-Jan-23.90448119)		 0.00010564 TDB
period 2088.263315477701
5.72		 1.9315e-05
5.288e-08		 d
yr
n .172392052923483 1.5945e-09 deg/d
Q 3.527736979681973 2.1752e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1047  
   data-arc span      8509 days (23.30 yr)  
   first obs. used      1997-03-08  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56861  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:53:00  

Additional Information
 Earth MOID = 1.86809 au 
 Jupiter MOID = 1.43278 au 
 T_jup = 3.186 
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[ 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 14.2   n/a MPO302257  
diameter diameter 7.891 km 0.325 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

33012 Eddieirizarry           Discovered 1997 Mar. 9 by E. W. Elst at the European Southern Observatory.
Eddie Irizarry (b. 1969) is an astronomer at the Sociedad de Astronomia del Caribe. At the Arecibo Observatory he has arranged conferences related to asteroids and comets.
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 2016-04-22Last Updated: 2016-04-25

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Alternate Designations
 1997 EJ55 = 1999 RQ79 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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