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15248 Hidekazu (1989 WH3)
Classification: Main-belt Asteroid          SPK-ID: 2015248
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2089419625137786 3.0574e-08  
a 2.563737314208852 8.9533e-09 au
q 2.028065008408251 7.7207e-08 au
i 1.203119021716919 3.2985e-06 deg
node 36.83029811667345 0.00018231 deg
peri 347.7626048609252 0.00018257 deg
M 184.3103397699284 1.2572e-05 deg
tp 2459732.232619575203
(2022-Jun-01.73261958)		 5.5023e-05 TDB
period 1499.36964248272
4.11		 7.8544e-06
2.15e-08		 d
yr
n .2401008996046477 1.2578e-09 deg/d
Q 3.099409620009454 1.0824e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1917  
   data-arc span      11210 days (30.69 yr)  
   first obs. used      1989-10-30  
   last obs. used      2020-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53445  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:34:52  

Additional Information
 Earth MOID = 1.03192 au 
 Jupiter MOID = 2.35551 au 
 T_jup = 3.402 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456561.5 (2013-Sep-26.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2063652354492451 3.039e-08  
q 2.036256528114304 7.6516e-08 au
tp 2456731.253199392642
(2014-Mar-14.75319939)		 4.6209e-05 TDB
node 36.87434871639277 0.00018229 deg
peri 347.6746544293004 0.00018256 deg
i 1.203683889663872 3.2937e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1917  
   data-arc span      11210 days (30.69 yr)  
   first obs. used      1989-10-30  
   last obs. used      2020-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53445  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:34:52  

Additional Information
 Jupiter MOID = 2.35551 au 
 T_jup = 3.402 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.235563584678955E-16 -2.315649088634288E-15 -1.037119683913765E-13 -8.834619594425659E-16 -4.254326278563582E-14 -4.838798558609521E-17
q -2.315649088634288E-15 5.854697692673912E-15 4.348434211946919E-13 3.57011920196567E-15 1.420279238018582E-13 1.065759606314613E-16
tp -1.037119683913765E-13 4.348434211946919E-13 2.135310582835671E-9 1.090395001676053E-11 4.780982479611252E-10 -1.841881099860339E-13
node -8.834619594425659E-16 3.57011920196567E-15 1.090395001676053E-11 3.323060389735526E-8 -3.322068641698019E-8 -8.906372323329269E-11
peri -4.254326278563582E-14 1.420279238018582E-13 4.780982479611252E-10 -3.322068641698019E-8 3.332981595179923E-8 8.900327348002481E-11
i -4.838798558609521E-17 1.065759606314613E-16 -1.841881099860339E-13 -8.906372323329269E-11 8.900327348002481E-11 1.084817479628079E-11

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO473973  

15248 Hidekazu           Discovered 1989 Nov. 29 by K. Endate and K. Watanabe at Kitami.
Hidekazu Yamato (b. 1956), became interested in astronomy through an event in which he participated at the age of 26. Star-field photography is his personal favorite activity.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100527/MPCPages.arcLast Updated: 2010-12-06

Alternate Designations
 1989 WH3 = 1993 VJ3 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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