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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04481011298538136 2.8653e-08  
a 2.409184062424794 7.8099e-09 au
q 2.301228252384958 6.924e-08 au
i 3.055045470056831 3.5489e-06 deg
node 133.6241923682321 6.1351e-05 deg
peri 144.3495822144957 7.5204e-05 deg
M 27.01428647174885 4.362e-05 deg
tp 2458898.006954187954
(2020-Feb-18.50695419)
0.00016547 TDB
period 1365.851233232591
3.74
6.6416e-06
1.818e-08
d
yr
n .2635718965878735 1.2816e-09 deg/d
Q 2.517139872464628 8.1599e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2019  
   data-arc span      11439 days (31.32 yr)  
   first obs. used      1989-04-07  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51115  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:08:02  

Additional Information
 Earth MOID = 1.28561 au 
 Jupiter MOID = 2.51886 au 
 T_jup = 3.517 
[ 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 14.1   n/a MPO337399  
rotation period rot_per 2.762 h n/a LCDB (Rev. 2019-August); 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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