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12138 Olinwilson (4053 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2012138
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1143653980985864 6.1463e-08  
a 2.47994475155167 1.231e-08 au
q 2.196324882777964 1.4969e-07 au
i 6.354665019108845 7.9259e-06 deg
node 214.751992535309 3.7215e-05 deg
peri 61.7126883230834 5.2668e-05 deg
M 180.0445000979385 3.3817e-05 deg
tp 2458313.556690194422
(2018-Jul-14.05669019)
0.00013365 JED
period 1426.466035268152
3.91
1.0621e-05
2.908e-08
d
yr
n .2523719395340008 1.8791e-09 deg/d
Q 2.763564620325377 1.3718e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1177  
   data-arc span      20223 days (55.37 yr)  
   first obs. used      1960-09-24  
   last obs. used      2016-02-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54295  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:48:34  

Additional Information
 Earth MOID = 1.18855 au 
 Jupiter MOID = 2.32972 au 
 T_jup = 3.461 
[ 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 14.4 mag n/a MPO347621  
rotation period rot_per 14.432 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]

12138 Olinwilson           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Olin C. Wilson (1909-1994) was an American spectroscopist who worked on solar and stellar activity cycles. With M. K. V. Bappu he found a method of determining a star's luminosity from the widths of two spectral lines.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071124/MPCPages.arcLast Updated: 2007-11-26

[ show close-approach data ]
Alternate Designations
 4053 P-L = 1998 FV68 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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