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14551 Itagaki (1997 UN8)
Classification: Main-belt Asteroid          SPK-ID: 2014551
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2209435096328654 3.3506e-08  
a 2.748174257256995 1.168e-08 au
q 2.140982991775942 9.3947e-08 au
i 7.069950507313568 4.7801e-06 deg
node 25.51647435430753 3.2756e-05 deg
peri 259.5999105255233 3.4706e-05 deg
M 54.82857849030215 1.095e-05 deg
tp 2458747.063411939966
(2019-Sep-20.56341194)
5.0303e-05 TDB
period 1664.044084559843
4.56
1.0609e-05
2.905e-08
d
yr
n .2163404223123234 1.3792e-09 deg/d
Q 3.355365522738049 1.4261e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2174  
   data-arc span      13146 days (35.99 yr)  
   first obs. used      1983-09-06  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43341  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 23:30:40  

Additional Information
 Earth MOID = 1.13865 au 
 Jupiter MOID = 1.87561 au 
 T_jup = 3.300 
[ 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 13.5   n/a MPO492913  
diameter diameter 10.364 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.94641 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.084   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

14551 Itagaki           Discovered 1997 Oct. 22 by T. Okuni at Nanyo.
Koichi Itagaki (b. 1947), a confectionery manufacturing industry president, is also an amateur astronomer in Yamagata. He is credited with the discovery of supernovae 2001bq and 2001gd.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020128/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1997 UN8 = 1983 RY6 = 2000 DK101 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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