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6100 Kunitomoikkansai (1991 VK4)
Classification: Main-belt Asteroid          SPK-ID: 2006100
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1352629724319629 7.2984e-08  
a 2.329094625217382 1.2523e-08 AU
q 2.01405436313517 1.7044e-07 AU
i 3.398574834418454 6.3252e-06 deg
node 303.9849334604073 0.00010556 deg
peri 68.99671240528387 0.00010741 deg
M 213.242986007407 2.2394e-05 deg
tp 2457529.767824093223
(2016-May-21.26782409)
8.2629e-05 JED
period 1298.312165735239
3.55
1.0471e-05
2.867e-08
d
yr
n .2772830829911623 2.2364e-09 deg/d
Q 2.644134887299594 1.4217e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1166  
   data-arc span      23430 days (64.15 yr)  
   first obs. used      1950-04-17  
   last obs. used      2014-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51865  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:33:30  

Additional Information
 Earth MOID = 1.01716 AU 
 T_jup = 3.558 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4 mag n/a MPO253406  

6100 Kunitomoikkansai           Discovered 1991 Nov. 9 by A. Sugie at the Dynic Astronomical Observatory.
Named in memory of Ikkansai Kunitomo (1778-1840). Born into a family of famous gun makers in the Edo period in Japan, he made several Gregorian reflecting telescopes entirely of his own design and observed the sun, moon and planets. For 14 months during 1835-1836 he made a continuous series of observations of sunspots. Name proposed by the discoverer, endorsed by S. Murayama, K. Sato and A. Fujii.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981208/MPCPages.arcLast Updated: 2009-11-17

[ show close-approach data ]
Alternate Designations
 1991 VK4 = 1987 RB2 = 1987 SB16 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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