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10445 Coster (4090 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2010445
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1526198544485056 6.8893e-08  
a 2.471178444158041 1.6403e-08 AU
q 2.094027549694356 1.6789e-07 AU
i 3.796249405829435 5.7949e-06 deg
node 102.2145780131646 0.00010973 deg
peri 150.8925245479498 0.00011163 deg
M 315.5551281493134 2.0117e-05 deg
tp 2457175.675652938100
(2015-Jun-02.17565294)
7.94e-05 JED
period 1418.909143659545
3.88
1.4127e-05
3.868e-08
d
yr
n .2537160336225015 2.5261e-09 deg/d
Q 2.848329338621726 1.8906e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      15251 days (41.75 yr)  
   first obs. used      1973-09-19  
   last obs. used      2015-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54027  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:04:30  

Additional Information
 Earth MOID = 1.08196 AU 
 T_jup = 3.465 
[ 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 14.5 mag n/a MPO337346  

10445 Coster           Discovered 1973 Sept. 29 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
With de Hevesy, Dutch physicist Dirk Coster (1889-1950) discovered the metallic element 72 hafnium, which closely resembles 40 zirconium in that it is resistant to high temperatures. The name was suggested by W. A. Fröger.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010705/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 4090 T-2 = 1996 PG6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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