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15856 Yanokoji (1996 EL)
Classification: Main-belt Asteroid          SPK-ID: 2015856
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2041261256159161 3.8237e-08  
a 2.371969387224443 9.0353e-09 au
q 1.887788466130758 8.955e-08 au
i 7.869978521830388 4.8326e-06 deg
node 327.7811825139428 2.8878e-05 deg
peri 262.8887312594101 3.1241e-05 deg
M 189.0581558775478 1.2721e-05 deg
tp 2459634.089440280738
(2022-Feb-23.58944028)
4.7765e-05 TDB
period 1334.32630069016
3.65
7.624e-06
2.087e-08
d
yr
n .2697990737451518 1.5416e-09 deg/d
Q 2.856150308318127 1.088e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2072  
   data-arc span      24997 days (68.44 yr)  
   first obs. used      1952-02-28  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45526  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:02:30  

Additional Information
 Earth MOID = .897425 au 
 Jupiter MOID = 2.20956 au 
 T_jup = 3.503 
[ 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 13.4   n/a MPO452395  
diameter diameter 6.069 km 0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.213   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15856 Yanokoji           Discovered 1996 Mar. 10 by K. Endate and K. Watanabe at Kitami.
Koji Yano (b. 1964) is a well-known amateur astronomer in Ehime Prefecture. A skilled photographer of nebula and star clusters, he is highly regarded for the superior technique. He is a member of the Oriental Astronomical Association.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-06-02Last Updated: 2015-06-04

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Alternate Designations
 1996 EL = 1952 DY = 1981 AR3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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