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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .152619830035148 7.0937e-08  
a 2.471178456809959 1.8601e-08 AU
q 2.094027620745104 1.7492e-07 AU
i 3.796248534148019 5.8342e-06 deg
node 102.2145357284485 0.00011938 deg
peri 150.8925792212296 0.00012138 deg
M 315.5551099039592 2.3754e-05 deg
tp 2457175.675726195894
(2015-Jun-02.17572620)
9.4215e-05 JED
period 1418.909154556324
3.88
1.602e-05
4.386e-08
d
yr
n .2537160316740418 2.8646e-09 deg/d
Q 2.848329292874815 2.144e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      793  
   data-arc span      15104 days (41.35 yr)  
   first obs. used      1973-09-19  
   last obs. used      2015-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55236  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:22:29  

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 14.6 mag n/a MPO296222  

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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