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173939 (2001 WH12)
Classification: Main-belt Asteroid          SPK-ID: 2173939
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08271487195917183 4.5757e-08  
a 3.076736934766636 2.8719e-08 au
q 2.822245033155359 1.3287e-07 au
i 11.19350213414599 5.5274e-06 deg
node 76.83845320012637 2.7833e-05 deg
peri 28.61009046262821 4.7207e-05 deg
M 118.4005823748435 3.9115e-05 deg
tp 2458352.186131102879
(2018-Aug-21.68613110)
0.00021171 TDB
period 1971.214905548916
5.40
2.76e-05
7.556e-08
d
yr
n .1826284891548912 2.557e-09 deg/d
Q 3.331228836377913 3.1094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      364  
   data-arc span      6794 days (18.60 yr)  
   first obs. used      2001-11-17  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5665  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:15:52  

Additional Information
 Earth MOID = 1.8445 au 
 Jupiter MOID = 1.87218 au 
 T_jup = 3.195 
[ 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 15.4   n/a MPO469865  

173939 (2001 WH12)          Discovered 2001-Nov-17 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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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
1903-May-31 12:47 00:05 Jupiter 1.91428129749239 1.91428027414211 1.91428232085497 2.67435003998873 2.50343707678943 2416266.032377461 5.28225900436888 302.713077281163 21.0415323924445 86.4042428596707 2398618.21008801 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 10:15:53 2020-Nov-12 10:15
1913-Feb-19 07:21 00:04 Jupiter 1.94335550522455 1.94335452097196 1.94335648948388 3.68323144655694 3.56293173508471 2419817.805974945 4.28611759762812 234.805755725923 25.5091137368218 -82.1911497487378 2699400.76164925 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 10:15:53 2020-Nov-12 10:15
1962-Dec-11 08:50 00:02 Jupiter 1.92263612494588 1.92263535518465 1.92263689470919 2.76540496744525 2.60122264616759 2438009.867966133 2.46362023853048 157.368485863383 20.5915802953497 86.8198031361907 2155583.20149605 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 10:15:53 2020-Nov-12 10:15
1972-Aug-21 20:06 00:02 Jupiter 1.92548499445964 1.92548450433329 1.925485484586 3.56336335487742 3.43769641877158 2441551.337605871 1.8376320509103 122.272234426155 20.1304396639896 89.0738847288521 2797381.52422705 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 10:15:53 2020-Nov-12 10:15
2022-Jun-23 01:46 < 00:01 Jupiter 1.92944877685015 1.9294481571762 1.92944939652399 2.9287634756675 2.77482633594265 2459753.573629444 0.463936919458362 88.8542202383846 22.0202848076456 86.8239630002039 2312380.6068126 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 10:15:53 2020-Nov-12 10:15
2032-Feb-23 18:40 < 00:01 Jupiter 1.91136238117567 1.9113617832306 1.91136297912062 3.42232486428695 3.29028951530877 2463286.277487756 0.744642752991463 72.824194616775 24.0294207069303 86.6947824177666 2455682.27183736 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 10:15:53 2020-Nov-12 10:15
2082-Jan-02 08:29 00:03 Jupiter 1.93508001788782 1.93507938625483 1.93508064952247 3.14642942065817 3.00409367906713 2481496.853772158 3.09716000593154 241.001024051899 22.9856141478101 -88.4136245271264 2219531.46671301 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 10:15:53 2020-Nov-12 10:15
2091-Aug-29 13:59 00:03 Jupiter 1.90070807673259 1.90070725086859 1.90070890259972 3.26041022880892 3.12073779152121 2485023.082715734 3.31116513156001 195.673886156401 24.3633901306529 -86.5810114884165 2372284.26272121 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 10:15:53 2020-Nov-12 10:15
2141-Jul-15 02:09 00:06 Jupiter 1.94037986876403 1.94037903152362 1.94038070601932 3.39723331713069 3.26621280276246 2503239.589399064 5.70959372006783 387.736733041848 23.1125723970238 -89.7239941980755 2086818.87372381 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 10:15:53 2020-Nov-12 10:15
2151-Mar-07 18:48 00:06 Jupiter 1.89304708109301 1.89304614232467 1.89304801987404 3.07966226760001 2.93077503268208 2506762.283433028 6.01552088404085 336.109636686099 22.7618805767386 -89.6539931123577 2370456.52531487 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 10:15:53 2020-Nov-12 10:15
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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