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4411 Kochibunkyo (1990 AF)
Classification: Main-belt Asteroid          SPK-ID: 2004411
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09213279617924254 8.8685e-09  
a 2.166781194712248 5.0296e-09 au
q 1.967149584534809 1.9625e-08 au
i 2.255034090020956 6.8417e-07 deg
node 88.43936963777985 3.3379e-05 deg
peri 11.01940566869027 3.9327e-05 deg
M 326.1344043025003 1.5443e-05 deg
tp 2459506.091591026870
(2021-Oct-18.59159103)
5.0157e-05 TDB
period 1164.986823857524
3.19
4.0563e-06
1.111e-08
d
yr
n .3090163705096354 1.0759e-09 deg/d
Q 2.366412804889687 5.493e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2900  
   data-arc span      17210 days (47.12 yr)  
   first obs. used      1973-12-25  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:19:10  

Additional Information
 Earth MOID = .984262 au 
 Jupiter MOID = 2.73108 au 
 T_jup = 3.686 
[ show covariance matrix ]

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 14.01   n/a E2021B10  
diameter diameter 4.433 km 0.409 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.6958 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Molnar, L.A.; Haegert, M.J.; Beaumonts, C.N.; Block, M.J.; et al. (2008) Minor Planet Bull. 35, 9-12.]
geometric albedo albedo 0.271   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4411 Kochibunkyo (1990 AF)          Discovered 1990-Jan-03 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1990 AF = 1973 YL3 = 1976 YP = 1979 TU2 = 1979 WZ7 = 1982 SF3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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