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12141 Chushayashi (4112 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2012141
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04285315929911949 3.3277e-08  
a 2.644770464164711 1.1102e-08 au
q 2.531433694154254 8.6719e-08 au
i 1.908366209181773 4.2743e-06 deg
node 341.535945992935 0.00011149 deg
peri 130.8013482268806 0.00012343 deg
M 212.7216142990079 5.3377e-05 deg
tp 2459643.212757782901
(2022-Mar-04.71275778)
0.0002339 TDB
period 1571.01526948829
4.30
9.892e-06
2.708e-08
d
yr
n .2291511782169112 1.4429e-09 deg/d
Q 2.758107234175167 1.1578e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1536  
   data-arc span      21863 days (59.86 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51099  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:31:08  

Additional Information
 Earth MOID = 1.54845 au 
 Jupiter MOID = 2.27164 au 
 T_jup = 3.391 
[ 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 14.2   n/a MPO279644  
diameter diameter 4.755 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.236   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12141 Chushayashi           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld at Leiden on Palomar Schmidt plates taken by T. Gehrels.
Chushiro Hayashi (b. 1920) is a Japanese astrophysicist who made pioneering models of star formation and significant discoveries related to the formation of elements in the early universe.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070926/MPCPages.arcLast Updated: 2007-09-30

[ show close-approach data ]
Alternate Designations
 4112 P-L = 1997 EO56 = 1997 JV18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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