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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 ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1528054145927035 6.7383e-08  
a 2.471625473707603 1.5476e-08 au
q 2.093947718479825 1.6319e-07 au
i 3.796084557690765 5.7778e-06 deg
node 102.21426032346 9.7532e-05 deg
peri 150.9213545520591 9.9578e-05 deg
M 57.00401190481789 1.8277e-05 deg
tp 2457175.762605207105
(2015-Jun-02.26260521)
7.2172e-05 JED
period 1419.294176356109
3.89
1.333e-05
3.65e-08
d
yr
n .2536472043620039 2.3823e-09 deg/d
Q 2.84930322893538 1.7841e-08 au
  Orbit Determination Parameters
   # obs. used (total)      859  
   data-arc span      15298 days (41.88 yr)  
   first obs. used      1973-09-19  
   last obs. used      2015-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53507  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:30:33  

Additional Information
 Earth MOID = 1.07911 au 
 Jupiter MOID = 2.18795 au 
 T_jup = 3.464 
[ 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 MPO344386  

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

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