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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2038195465493704 1.9008e-08  
a 2.372418758224041 8.2678e-09 au
q 1.888873442697597 4.5108e-08 au
i 7.870254105684199 7.9935e-07 deg
node 327.7765596911707 5.6592e-06 deg
peri 262.8761996413774 8.4216e-06 deg
M 295.8749967577057 6.1897e-06 deg
tp 2459634.244429565651
(2022-Feb-23.74442957)
2.3717e-05 TDB
period 1334.705502005867
3.65
6.9771e-06
1.91e-08
d
yr
n .2697224215071958 1.41e-09 deg/d
Q 2.855964073750486 9.9529e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2487  
   data-arc span      25295 days (69.25 yr)  
   first obs. used      1952-02-28  
   last obs. used      2021-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43478  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:57:13  

Additional Information
 Earth MOID = .898934 au 
 Jupiter MOID = 2.20742 au 
 T_jup = 3.503 
[ 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 13.48   n/a E2021B10  
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

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