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10224 Hisashi (1997 UK22)
Classification: Main-belt Asteroid          SPK-ID: 2010224
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .1667171514967893 6.2676e-08  
a 2.430812923064574 1.753e-08 AU
q 2.025554716709664 1.5277e-07 AU
i 3.431751916085157 6.3714e-06 deg
node 126.4487545775942 0.00011282 deg
peri 188.3181384216292 0.00011497 deg
M 247.5206970811257 2.3921e-05 deg
tp 2457433.009695182477
(2016-Feb-14.50969518)
9.2994e-05 JED
period 1384.285697236166
3.79
1.4974e-05
4.1e-08
d
yr
n .2600619227076954 2.8132e-09 deg/d
Q 2.836071129419484 2.0452e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      913  
   data-arc span      11488 days (31.45 yr)  
   first obs. used      1982-12-13  
   last obs. used      2014-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5558  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:44:29  

Additional Information
 Earth MOID = 1.0127 AU 
 T_jup = 3.486 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3 mag n/a MPO296220  

10224 Hisashi           Discovered 1997 Oct. 26 by N. Sato at Chichibu.
Hisashi Hirabayashi (b. 1943), senior chief officer of JAXA Space Education and director of the Space Education Center, led the Very Long Baseline Interferometer and Space Observatory Program with the radio satellite HALCA that successfully revealed active galactic nuclei.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090409/MPCPages.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 1997 UK22 = 1982 XQ3 = 1993 SJ16 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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