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4403 Kuniharu (1987 EA)
Classification: Main-belt Asteroid          SPK-ID: 2004403
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09407658430898366 3.0041e-08  
a 2.24308600034954 6.32e-09 au
q 2.032064131125356 6.7869e-08 au
i 3.08549279475458 3.3811e-06 deg
node 34.00618442144292 5.9544e-05 deg
peri 142.0071447657947 6.2238e-05 deg
M 5.655725559341411 1.8924e-05 deg
tp 2459181.222392181775
(2020-Nov-27.72239218)
6.4477e-05 TDB
period 1227.064280567575
3.36
5.1859e-06
1.42e-08
d
yr
n .2933831631326461 1.2399e-09 deg/d
Q 2.454107869573724 6.9145e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2717  
   data-arc span      19700 days (53.94 yr)  
   first obs. used      1967-04-13  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47637  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:36:41  

Additional Information
 Earth MOID = 1.03648 au 
 Jupiter MOID = 2.50466 au 
 T_jup = 3.625 
[ 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 13.70   n/a E2021B10  
diameter diameter 4.801 km 0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.306   0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4403 Kuniharu (1987 EA)          Discovered 1987-Mar-02 by Oshima, Y. at Gekko
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1987 EA = 1967 GL = 1980 BK6 = 1984 JY 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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