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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456633.5 (2013-Dec-07.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1848329427436325 2.9347e-08  
q 1.802299745528173 6.4097e-08 au
tp 2456106.071527684457
(2012-Jun-27.57152768)
4.6155e-05 TDB
node 248.604774893302 0.00010657 deg
peri 29.48349382343367 0.00010742 deg
i 2.054680283045249 4.0972e-06 deg
  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
 Jupiter MOID = 2.50493 au 
 T_jup = 3.634 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.612450513352075E-16 -1.875867348969478E-15 -2.713939028744983E-13 -2.370338016923065E-15 -8.997699153165892E-14 1.973233239595686E-16
q -1.875867348969478E-15 4.108362514075778E-15 6.448929491265129E-13 5.507787013257918E-15 2.135266310062432E-13 -4.407191251223487E-16
tp -2.713939028744983E-13 6.448929491265129E-13 2.130286157931107E-9 -9.124608287057629E-12 6.353301022647625E-10 -4.447292980452307E-14
node -2.370338016923065E-15 5.507787013257918E-15 -9.124608287057629E-12 1.135815771150833E-8 -1.13529471546545E-8 -1.796389647055275E-10
peri -8.997699153165892E-14 2.135266310062432E-13 6.353301022647625E-10 -1.13529471546545E-8 1.153914313761008E-8 1.795055338758836E-10
i 1.973233239595686E-16 -4.407191251223487E-16 -4.447292980452307E-14 -1.796389647055275E-10 1.795055338758836E-10 1.678704974950903E-11

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1909-Apr-10 19:37 < 00:01 Eunom 0.0411519029569992 0.0411416945948657 0.0411621114649572 5.93150974010043 5.93150968259105 2418407.317058202 0.802368344188501 523.288299352512 35.9334008363245 -13.5492500060367 41712.6311634421 T 27 CATAB v2.0f-lin.ifort 2020-Feb-22 20:08:39 2020-Feb-22 20:08
2083-Jul-29 05:56 < 00:01 Hebe 0.025644442787861 0.0256365818965872 0.0256523040297295 7.61319371608875 7.61319368424697 2482069.747481753 0.325691488056556 419.683667419712 34.0802404939451 21.0245421114598 41267.5773523269 T 27 CATAB v2.0f-lin.ifort 2020-Feb-22 20:08:39 2020-Feb-22 20:08

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