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9676 Eijkman (2023 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2009676
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .16348861581408 5.9699e-08  
a 3.080731346195739 2.3729e-08 AU
q 2.57706684271115 1.851e-07 AU
i .6138600885869493 6.6817e-06 deg
node 322.3026549398123 0.0005991 deg
peri 357.0766597231142 0.00059904 deg
M 39.85493095390483 2.1597e-05 deg
tp 2456781.845344570344
(2014-May-04.34534457)
0.00011816 JED
period 1975.054882060059
5.41
2.2819e-05
6.248e-08
d
yr
n .1822734159288303 2.1059e-09 deg/d
Q 3.584395849680328 2.7608e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      982  
   data-arc span      21976 days (60.17 yr)  
   first obs. used      1954-07-03  
   last obs. used      2014-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49963  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:55:28  

Additional Information
 Earth MOID = 1.56488 AU 
 T_jup = 3.207 
[ 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 13.4 mag n/a MPO266010  

9676 Eijkman           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Christiaan Eijkman (1858-1930) won the Nobel Prize in physiology or medicine for his discovery of the antineuritic vitamin, now known as B _1 or thiamine. Investigating the disease beriberi in Java, his observations of dietary deficiency led to the discovery of vitamins. He shared the 1929 Nobel Prize with Gowland Hopkins.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001111/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2023 P-L = 1987 SL12 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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