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10563 Izhdubar (1993 WD)
Classification: Apollo [NEO]          SPK-ID: 2010563
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 54 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2663693934253453 1.9244e-07  
a 1.006895938839745 2.8473e-09 AU
q .7386896783685586 1.9304e-07 AU
i 63.46143105709469 2.9304e-05 deg
node 56.56954809539758 5.4053e-06 deg
peri 132.1898912676881 2.2058e-05 deg
M 359.8436773632117 4.7576e-05 deg
tp 2456800.660248761550
(2014-May-23.16024876)
4.8772e-05 JED
period 369.0415882381328
1.01
1.5654e-06
4.286e-09
d
yr
n .9754998121450243 4.1378e-09 deg/d
Q 1.275102199310931 3.6057e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      8116 days (22.22 yr)  
   first obs. used      1991-11-13  
   last obs. used      2014-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .68466  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:51:19  

Additional Information
 Earth MOID = .144508 AU 
 T_jup = 5.547 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8 mag n/a MPO256943  
SMASSII spectral type spec_B Q   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

10563 Izhdubar           Discovered 1993 Nov. 19 by C. S. Shoemaker and E. M. Shoemaker at Palomar.
Izhdubar was an ancient Chaldean sun-god. He was responsible for slaying the dreaded dragon Tiamat, which personified primeval chaos and was hostile to gods and men. The exploits of Izhdubar are thought to represent the sun's annual passage through the twelve signs of the zodiac.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19991123/MPCPages.arcLast Updated: 2010-06-11

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Alternate Designations
 1993 WD = 1991 VJ14 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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