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10509 Heinrichkayser (1989 GD4)
Classification: Main-belt Asteroid          SPK-ID: 2010509
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1901486495200496 5.6965e-08  
a 3.057198671396214 3.1247e-08 AU
q 2.475876472715735 1.8916e-07 AU
i 4.893800236902609 7.992e-06 deg
node 194.9002554844031 6.4012e-05 deg
peri 242.826458803301 6.7939e-05 deg
M 339.1100012354112 2.4063e-05 deg
tp 2456913.797371322411
(2014-Sep-13.29737132)
0.00013133 JED
period 1952.467979328333
5.35
2.9933e-05
8.195e-08
d
yr
n .1843820251146159 2.8268e-09 deg/d
Q 3.638520870076694 3.7188e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      995  
   data-arc span      15379 days (42.11 yr)  
   first obs. used      1971-12-14  
   last obs. used      2014-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55236  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:13:39  

Additional Information
 Earth MOID = 1.49507 AU 
 T_jup = 3.202 
[ 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 12.8 mag n/a MPO279626  

10509 Heinrichkayser           Discovered 1989 Apr. 3 by E. W. Elst at the European Southern Observatory.
Heinrich Gustav Johannes Kayser (1853-1940) was a German physicist who demonstrated the presence of helium in the earth's atmosphere. Using the spectra of a large number of elements, he discovered closely grouped spectral lines, the spacing and intensity of which vary in a regular manner.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000320/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1989 GD4 = 1971 XD = 1976 UW4 = 1983 BK = 1986 RS4 = 1999 BC25 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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