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6094 Hisako (1990 VQ1)
Classification: Main-belt Asteroid          SPK-ID: 2006094
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1410616157769489 5.617e-08  
a 2.637785557308092 2.0146e-08 au
q 2.265695264521113 1.5005e-07 au
i 12.13038887569668 7.2891e-06 deg
node 222.7369955564076 2.6389e-05 deg
peri 57.53831899567567 3.6203e-05 deg
M 99.39896239296569 2.5371e-05 deg
tp 2457168.447018895918
(2015-May-25.94701890)
0.00010913 JED
period 1564.795742862571
4.28
1.7927e-05
4.908e-08
d
yr
n .2300619755914157 2.6357e-09 deg/d
Q 3.009875850095071 2.2988e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1125  
   data-arc span      16379 days (44.84 yr)  
   first obs. used      1971-01-28  
   last obs. used      2015-12-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47506  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:16:54  

Additional Information
 Earth MOID = 1.27547 au 
 Jupiter MOID = 2.12996 au 
 T_jup = 3.351 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.4 mag n/a MPO259383  
rotation period rot_per 16.4 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]

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 | Physical Parameters | Discovery Circumstances ]
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