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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2208359920969858 1.0995e-08  
a 2.74840656252529 9.9882e-09 au
q 2.141459472604151 2.9092e-08 au
i 7.069515212069116 1.3004e-06 deg
node 25.5162860747918 3.2305e-06 deg
peri 259.6285893406762 5.124e-06 deg
M 98.07771032429558 5.6539e-06 deg
tp 2458747.093533403132
(2019-Sep-20.59353340)
2.5003e-05 TDB
period 1664.255083394196
4.56
9.0723e-06
2.484e-08
d
yr
n .2163129940788832 1.1792e-09 deg/d
Q 3.355353652446429 1.2194e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2662  
   data-arc span      13672 days (37.43 yr)  
   first obs. used      1983-09-06  
   last obs. used      2021-02-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41422  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 00:12:49  

Additional Information
 Earth MOID = 1.13725 au 
 Jupiter MOID = 1.875 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 13.55   n/a E2020-QM5  
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 5.94719 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 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.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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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