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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1904804513271689 4.9758e-08  
a 3.058431198070008 2.8103e-08 AU
q 2.475859843108539 1.6116e-07 AU
i 4.893422239343095 7.2863e-06 deg
node 194.8895563978715 6.4445e-05 deg
peri 242.8533750494223 6.7635e-05 deg
M 15.96582752346128 2.0506e-05 deg
tp 2456913.856610791974
(2014-Sep-13.35661079)
0.00011087 JED
period 1953.648820836511
5.35
2.6927e-05
7.372e-08
d
yr
n .1842705793182705 2.5398e-09 deg/d
Q 3.641002553031477 3.3456e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1054  
   data-arc span      15719 days (43.04 yr)  
   first obs. used      1971-12-14  
   last obs. used      2014-12-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51636  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:34:17  

Additional Information
 Earth MOID = 1.49552 AU 
 T_jup = 3.201 
[ 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

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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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