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16624 Hoshizawa (1993 HX)
Classification: Main-belt Asteroid          SPK-ID: 2016624
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0445709377025721 2.0931e-08  
a 2.408084180898021 6.9472e-09 au
q 2.300753610888666 4.9653e-08 au
i 3.055526064533175 1.4228e-06 deg
node 133.6267700323968 1.6659e-05 deg
peri 143.8529687233682 2.4322e-05 deg
M 80.2384593955658 1.7793e-05 deg
tp 2458896.281230950421
(2020-Feb-16.78123095)
6.746e-05 TDB
period 1364.915997675556
3.74
5.9066e-06
1.617e-08
d
yr
n .2637524951081809 1.1414e-09 deg/d
Q 2.515414750907376 7.2569e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2436  
   data-arc span      11634 days (31.85 yr)  
   first obs. used      1989-04-07  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48736  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:37:01  

Additional Information
 Earth MOID = 1.28328 au 
 Jupiter MOID = 2.51826 au 
 T_jup = 3.518 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.19   n/a E2021B10  
rotation period rot_per 2.762 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

16624 Hoshizawa           Discovered 1993 Apr. 16 by K. Endate and K. Watanabe at Kitami.
Sachiko Hoshizawa (b. 1951) appears daily on a Japanese television program about cooking and has introduced more than 3800 dishes using the produce of Hokkaido. A great space enthusiast, she developed and in 2000 presented to the astronaut Kouichi Wakata a special soybean soup for space.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070601/MPCPages.arcLast Updated: 2007-06-06

Alternate Designations
 1993 HX = 1998 SD66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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