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7178 Ikuookamoto (1990 VA3)
Classification: Main-belt Asteroid          SPK-ID: 2007178
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1977341856508914 4.002e-08  
a 2.260261672554474 7.0591e-09 au
q 1.813330671373994 9.0532e-08 au
i 1.884538518516189 4.3746e-06 deg
node 338.3707084005982 0.00010276 deg
peri 2.610034802744104 0.00010311 deg
M 186.8402864216963 9.7118e-06 deg
tp 2459197.508983144555
(2020-Dec-14.00898314)
3.457e-05 TDB
period 1241.184970168309
3.40
5.8146e-06
1.592e-08
d
yr
n .2900454071331389 1.3588e-09 deg/d
Q 2.707192673734955 8.455e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2249  
   data-arc span      24932 days (68.26 yr)  
   first obs. used      1951-02-04  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47019  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:26:09  

Additional Information
 Earth MOID = .803982 au 
 Jupiter MOID = 2.68301 au 
 T_jup = 3.594 
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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 14.0   n/a MPO384820  
diameter diameter 4.585 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.226   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7178 Ikuookamoto           Discovered 1990 Nov. 11 by T. Nomura and K. Kawanishi at Minami-Oda.
Named in honor of Ikuo Okamoto (b. 1946), optician and amateur astronomer. He owns the Schmidt camera with which this minor planet was discovered.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990728/MPCPages.arcLast Updated: 2010-06-11

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Alternate Designations
 1990 VA3 = 1976 QK = 1992 GQ5 = 1995 BH12 
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