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19140 Jansmit (1989 RJ2)
Classification: Main-belt Asteroid          SPK-ID: 2019140
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2541152156326938 8.9702e-08  
a 2.324060156871331 1.7117e-08 au
q 1.733481108964621 2.0591e-07 au
i 21.62677370790232 1.0627e-05 deg
node 249.9548069972029 1.7242e-05 deg
peri 131.8524502827828 2.4776e-05 deg
M 141.5067220296634 1.9353e-05 deg
tp 2456891.820723612249
(2014-Aug-22.32072361)
6.8464e-05 JED
period 1294.104879775271
3.54
1.4297e-05
3.914e-08
d
yr
n .278184562647284 3.0733e-09 deg/d
Q 2.914639204778042 2.1466e-08 au
  Orbit Determination Parameters
   # obs. used (total)      599  
   data-arc span      21907 days (59.98 yr)  
   first obs. used      1955-03-19  
   last obs. used      2015-03-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48153  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:02:46  

Additional Information
 Earth MOID = .796846 au 
 Jupiter MOID = 2.65837 au 
 T_jup = 3.441 
[ 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 14.0 mag n/a MPO266056  

19140 Jansmit           Discovered 1989 Sept. 2 by C. S. Shoemaker and E. M. Shoemaker at Palomar.
Jan Smit (b. 1948) has made important contributions to geology and paleontology by establishing the sequence of impact-generated events that occurred 65 million years ago, including ejecta fallout, tsunami propagation, geochemical disturbances and extinction of foraminifera and dinosaurs.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020526/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1989 RJ2 = 1975 VE9 = 1999 JK122 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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