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JPL Small-Body Database Browser
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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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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1036182284638407 5.407e-08  
a 3.198456057748054 2.3295e-08 au
q 2.86703770722476 1.7519e-07 au
i 1.583915506493005 5.8371e-06 deg
node 355.7385675760357 0.00015855 deg
peri 191.4984360819766 0.00015999 deg
M 313.2551956864708 2.2319e-05 deg
tp 2458871.793791353079
(2020-Jan-23.29379135)
0.00012987 TDB
period 2089.339474651331
5.72
2.2826e-05
6.249e-08
d
yr
n .1723032586937921 1.8824e-09 deg/d
Q 3.529874408271347 2.5709e-08 au
  Orbit Determination Parameters
   # obs. used (total)      817  
   data-arc span      8053 days (22.05 yr)  
   first obs. used      1997-03-08  
   last obs. used      2019-03-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60504  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:34:41  

Additional Information
 Earth MOID = 1.86858 au 
 Jupiter MOID = 1.43197 au 
 T_jup = 3.186 
[ 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 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

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