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31442 Stark (1999 CY1)
Classification: Main-belt Asteroid          SPK-ID: 2031442
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .12859690172447 5.1226e-08  
a 2.433541886869282 9.858e-09 au
q 2.120595940001172 1.2739e-07 au
i 1.835544197948793 4.8278e-06 deg
node 304.03697706215 0.00013703 deg
peri 229.1513669710785 0.00013802 deg
M 184.3087915090164 1.7437e-05 deg
tp 2459677.212494275478
(2022-Apr-07.71249428)
6.8553e-05 TDB
period 1386.617463853772
3.80
8.4255e-06
2.307e-08
d
yr
n .2596245968224473 1.5776e-09 deg/d
Q 2.746487833737393 1.1126e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1261  
   data-arc span      9365 days (25.64 yr)  
   first obs. used      1993-09-14  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55186  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:39:40  

Additional Information
 Earth MOID = 1.12631 au 
 Jupiter MOID = 2.22395 au 
 T_jup = 3.494 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO493070  
diameter diameter 3.565 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.241   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

31442 Stark           Discovered 1999 Feb. 7 by D. S. Dixon at Jornada Observatory.
Lawrence W. Stark (b. 1926) has been a pioneering researcher in the application of control and information theory to neurological systems and the physiological modeling of human vision. Recently he extended this work into the field of robotic vision.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031110/MPCPages.arcLast Updated: 2003-11-12

[ show close-approach data ]
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