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6094 Hisako (1990 VQ1)
Classification: Main-belt Asteroid          SPK-ID: 2006094
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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1411599314738146 1.6711e-08  
a 2.637022169090748 9.2222e-09 au
q 2.264780300406968 4.3408e-08 au
i 12.12658397624549 3.8544e-07 deg
node 222.7164399484479 2.3044e-06 deg
peri 57.10742577976892 7.652e-06 deg
M 108.0361716938763 6.8548e-06 deg
tp 2458731.107891616482
(2019-Sep-04.60789162)
2.9266e-05 TDB
period 1564.116502543977
4.28
8.205e-06
2.246e-08
d
yr
n .2301618833472274 1.2074e-09 deg/d
Q 3.009264037774527 1.0524e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2545  
   data-arc span      18304 days (50.11 yr)  
   first obs. used      1971-01-28  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42726  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 18:19:35  

Additional Information
 Earth MOID = 1.27271 au 
 Jupiter MOID = 2.1323 au 
 T_jup = 3.351 
[ 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 12.56   n/a E2021B10  
diameter diameter 9.345 km 0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.050 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 234-239.]
geometric albedo albedo 0.222   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

6094 Hisako           Discovered 1990 Nov. 10 by T. Hioki and S. Hayakawa at Okutama.
Hisako Hioki (b. 1929) is the mother of the discoverer and an expert seamstress.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26

Alternate Designations
 1990 VQ1 = 1971 BJ3 = 1972 LE1 = 1993 HA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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