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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08271486433776705 4.7905e-08  
a 3.076736938535176 2.9559e-08 au
q 2.822245060061242 1.4199e-07 au
i 11.19350226474228 5.5839e-06 deg
node 76.83845539180898 3.3301e-05 deg
peri 28.61007958352315 5.2964e-05 deg
M 118.4005894991951 4.1311e-05 deg
tp 2458352.186090901670
(2018-Aug-21.68609090)
0.00022459 TDB
period 1971.214909170578
5.40
2.8407e-05
7.777e-08
d
yr
n .1826284888193526 2.6319e-09 deg/d
Q 3.33122881700911 3.2004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      322  
   data-arc span      6735 days (18.44 yr)  
   first obs. used      2001-11-17  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59173  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:33:13  

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 12:46 00:05 Jupiter 1.91428130618143 1.91428028164279 1.91428233073194 2.67435012638101 2.50343716988209 2416266.032210158 5.46133834345855 315.496586746311 21.839850209675 86.7141672380177 2061800.70374509 T 14 CATAB v2.0f-lin.ifort 2020-May-21 03:33:15 2020-May-21 03:33
1913-Feb-19 07:20 00:04 Jupiter 1.94335556008704 1.94335452239436 1.94335659778668 3.68323179173926 3.56293209537535 2419817.805835532 4.41183769041764 244.853747343333 28.6430338021858 -82.3986668421678 2611729.12832566 T 14 CATAB v2.0f-lin.ifort 2020-May-21 03:33:15 2020-May-21 03:33
1962-Dec-11 08:50 00:03 Jupiter 1.9226361515052 1.92263536863854 1.92263693437339 2.7654050690701 2.60122275654633 2438009.867893519 2.53980529938298 165.41604234085 22.219104144781 87.7194571422337 1917670.54008298 T 14 CATAB v2.0f-lin.ifort 2020-May-21 03:33:15 2020-May-21 03:33
1972-Aug-21 20:06 00:02 Jupiter 1.92548501745917 1.92548449498606 1.92548553993229 3.56336360635924 3.43769668097497 2441551.337549875 1.87352050136638 131.322667616166 21.8478305687802 88.4854710815187 2722476.49074677 T 14 CATAB v2.0f-lin.ifort 2020-May-21 03:33:15 2020-May-21 03:33
2022-Jun-23 01:46 < 00:01 Jupiter 1.9294488199454 1.92944815824353 1.92944948164717 2.92876362933033 2.77482650166376 2459753.573634690 0.492464643867514 90.4634970884287 23.9016786414461 87.9257427155176 2050987.24001247 T 14 CATAB v2.0f-lin.ifort 2020-May-21 03:33:15 2020-May-21 03:33
2032-Feb-23 18:40 < 00:01 Jupiter 1.91136238342796 1.91136177255232 1.91136299430359 3.42232492599146 3.29028957964812 2463286.277526777 0.815577526335502 86.3191648087466 24.5892027768531 84.4897869678604 2440524.19195775 T 14 CATAB v2.0f-lin.ifort 2020-May-21 03:33:15 2020-May-21 03:33
2082-Jan-02 08:30 00:03 Jupiter 1.93508007705197 1.93507936958182 1.93508078452399 3.14643007707928 3.0040943710448 2481496.853897974 3.2247293647188 245.544533382009 25.162009396577 -88.5557106042779 1922279.91089133 T 14 CATAB v2.0f-lin.ifort 2020-May-21 03:33:15 2020-May-21 03:33
2091-Aug-29 13:59 00:03 Jupiter 1.90070806816239 1.90070723211796 1.90070890420963 3.26041006333807 3.12073761800063 2485023.082852605 3.47456536930649 208.039003383347 27.4113358140336 -87.5957190226462 2307879.3030156 T 14 CATAB v2.0f-lin.ifort 2020-May-21 03:33:15 2020-May-21 03:33
2141-Jul-15 02:09 00:06 Jupiter 1.94037994595258 1.94037901182796 1.94038088009242 3.39723410430082 3.2662136268256 2503239.589595039 5.93335585977755 396.770300736116 25.9726429746698 -89.9259569585224 1840576.57318062 T 14 CATAB v2.0f-lin.ifort 2020-May-21 03:33:15 2020-May-21 03:33
2151-Mar-07 18:48 00:06 Jupiter 1.89304707078337 1.89304612279148 1.89304801878774 3.07966194480138 2.9307746926534 2506762.283658853 6.27994954419306 352.076636667239 25.8938412609513 89.9023534286319 2271815.29440081 T 14 CATAB v2.0f-lin.ifort 2020-May-21 03:33:15 2020-May-21 03:33
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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