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JPL Small-Body Database Browser
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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1848115947761343 2.9265e-08  
a 2.210476213109553 5.8847e-09 au
q 1.801954578950066 6.387e-08 au
i 2.053605106490654 4.0948e-06 deg
node 248.5016823197117 0.00010669 deg
peri 29.80700817348596 0.00010753 deg
M 147.7145250050019 1.486e-05 deg
tp 2458507.952751721385
(2019-Jan-24.45275172)
4.8805e-05 TDB
period 1200.403341338959
3.29
4.7935e-06
1.312e-08
d
yr
n .2998991985464214 1.1976e-09 deg/d
Q 2.618997847269039 6.9722e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1597  
   data-arc span      11168 days (30.58 yr)  
   first obs. used      1989-07-01  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5064  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:08:28  

Additional Information
 Earth MOID = .785877 au 
 Jupiter MOID = 2.50493 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 15.0   n/a MPO502259  

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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