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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04500323771390007 6.0113e-08  
a 2.690563233890554 1.8399e-08 au
q 2.569479177091497 1.5941e-07 au
i 1.624208119374117 5.2857e-06 deg
node 283.8251962725793 0.00019465 deg
peri 51.1489020277377 0.00020407 deg
M 164.8137624904134 6.3508e-05 deg
tp 2456662.503665102840
(2014-Jan-05.00366510)
0.0002849 JED
period 1611.993298062298
4.41
1.6535e-05
4.527e-08
d
yr
n .2233259905191536 2.2908e-09 deg/d
Q 2.81164729068961 1.9227e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1313  
   data-arc span      22126 days (60.58 yr)  
   first obs. used      1955-05-23  
   last obs. used      2015-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51805  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:06:50  

Additional Information
 Earth MOID = 1.55745 au 
 Jupiter MOID = 2.34678 au 
 T_jup = 3.370 
[ 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 14.0 mag n/a MPO332896  

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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