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19140 Jansmit (1989 RJ2)
Classification: Main-belt Asteroid          SPK-ID: 2019140
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: MPO229185 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.2541139 n/a  
a 2.3236513 n/a AU
q 1.7331792 n/a AU
i 21.63270 n/a deg
node 250.01908 n/a deg
peri 131.68891 n/a deg
M 223.40279 n/a deg
tp 2456891.4013211
(2014-Aug-21.90132110)
n/a JED
period 1293.7634349
3.54
n/a
n/a
d
yr
n 0.27825798 n/a deg/d
Q 2.9141234 n/a AU
  Orbit Determination Parameters
   # obs. used (total)      402  
   first obs. used      1955-??-??  
   last obs. used      2012-04-25  
   # oppositions      13  
   planetary ephem.      DE403  
   condition code      0  
   fit RMS      0.54  
   data source      MPC:mpn  
   producer      MPCLINUX  

Additional Information
 T_jup = 3.441 

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a PDS3 (MPO 6460)  

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

Alternate Designations
 1989 RJ2 = 1975 VE9 = 1999 JK122 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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