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8255 Masiero (1981 EZ18)
Classification: Main-belt Asteroid          SPK-ID: 2008255
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04557772819113535 6.0606e-08  
a 2.688800939820592 1.9343e-08 AU
q 2.566251501425379 1.6114e-07 AU
i 1.625484103066945 5.3575e-06 deg
node 283.8390544683772 0.00020032 deg
peri 50.56888174832169 0.00020978 deg
M 75.98300104376484 6.3993e-05 deg
tp 2456660.600641009857
(2014-Jan-03.10064101)
0.00028671 JED
period 1610.409796343423
4.41
1.7378e-05
4.758e-08
d
yr
n .2235455849917279 2.4123e-09 deg/d
Q 2.811350378215804 2.0225e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1189  
   data-arc span      21830 days (59.77 yr)  
   first obs. used      1955-05-23  
   last obs. used      2015-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51922  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:12:47  

Additional Information
 Earth MOID = 1.55676 AU 
 T_jup = 3.371 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a MPO266002  

8255 Masiero           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Joseph Masiero (b. 1982) is a Postdoctoral Fellow at the Jet Propulsion Laboratory in California. His 2009 Ph.D. thesis at the University of Hawaii investigated asteroid polarization. Currently he is processing and analyzing minor-planet measurements by the Wide-field Infrared Survey Explorer satellite.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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