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5354 Hisayo (1990 BJ2)
Classification: Main-belt Asteroid          SPK-ID: 2005354
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05490340329612318 3.4942e-08  
a 3.193343228474069 1.6763e-08 au
q 3.018017817338214 1.1028e-07 au
i 4.908315795782641 3.5504e-06 deg
node 133.179044373404 4.4963e-05 deg
peri 65.95647446294812 5.6244e-05 deg
M 50.58297802883099 3.2905e-05 deg
tp 2458707.634158391046
(2019-Aug-12.13415839)
0.00019087 TDB
period 2084.331668236893
5.71
1.6412e-05
4.493e-08
d
yr
n .1727172337713983 1.36e-09 deg/d
Q 3.368668639609925 1.7683e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2323  
   data-arc span      25697 days (70.35 yr)  
   first obs. used      1950-02-08  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45929  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:19:17  

Additional Information
 Earth MOID = 2.02027 au 
 Jupiter MOID = 1.60093 au 
 T_jup = 3.188 
[ 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 12.0   n/a MPO302096  
diameter diameter 15.610 km 0.407 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 14.29164 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); 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.]
geometric albedo albedo 0.126   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5354 Hisayo           Discovered 1990 Jan. 30 by S. Ueda and H. Kaneda at Kushiro.
Named in honor of Hisayo Kaneda (b. 1977), daughter of the second discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19960828/MPCPages.arcLast Updated: 2003-09-26

[ show close-approach data ]
Alternate Designations
 1990 BJ2 = 1976 UR20 = 1985 HK1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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