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11746 Thomjansen (1999 NG4)
Classification: Main-belt Asteroid          SPK-ID: 2011746
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1846999274953717 2.7749e-08  
a 2.210706528188373 5.749e-09 au
q 1.802389192718436 6.0832e-08 au
i 2.053305666999241 3.6495e-06 deg
node 248.4975932144268 9.7202e-05 deg
peri 29.84258178196978 9.8001e-05 deg
M 207.6452409076039 1.4468e-05 deg
tp 2459708.599293995329
(2022-May-09.09929400)
4.9256e-05 TDB
period 1200.590955792779
3.29
4.6833e-06
1.282e-08
d
yr
n .2998523337719826 1.1697e-09 deg/d
Q 2.619023863658311 6.8109e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1721  
   data-arc span      11527 days (31.56 yr)  
   first obs. used      1989-07-01  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49733  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:02:14  

Additional Information
 Earth MOID = .784441 au 
 Jupiter MOID = 2.5041 au 
 T_jup = 3.634 
[ 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 14.97   n/a E2021B10  

11746 Thomjansen           Discovered 1999 July 13 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Thomas Scott Jansen (b. 1986) is a finalist in the 2002 Intel International Science and Engineering Fair for his microbiology project. He attends the Laramie Senior High School, Laramie, Wyoming, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1999 NG4 = 1989 NV 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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