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JPL Small-Body Database Browser
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392952 (2012 WT20)
Classification: Main-belt Asteroid          SPK-ID: 2392952
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04235930129987573 8.7907e-08  
a 3.019847954508425 7.6286e-08 au
q 2.891929305123589 3.0305e-07 au
i 10.01932280087167 6.8837e-06 deg
node 46.20783373367927 5.1214e-05 deg
peri 84.55439714784215 9.8271e-05 deg
M 18.37316762539005 8.4808e-05 deg
tp 2458502.673260416522
(2019-Jan-19.17326042)
0.00045097 TDB
period 1916.796655215002
5.25
7.2632e-05
1.989e-07
d
yr
n .1878133494340952 7.1167e-09 deg/d
Q 3.147766603893261 7.9518e-08 au
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      5398 days (14.78 yr)  
   first obs. used      2004-05-24  
   last obs. used      2019-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67349  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:23:26  

Additional Information
 Earth MOID = 1.92949 au 
 Jupiter MOID = 1.90083 au 
 T_jup = 3.222 
[ 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 16.0   n/a MPO427955  

392952 (2012 WT20)          Discovered 2009-Mar-18 by CSS at Catalina
Reference: Last Updated: 2014-04-17

[ 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
1928-Feb-29 02:07 00:10 Jupiter 1.89751188797546 1.89751107250349 1.897512703458 3.84542247283052 3.72753299550299 2425305.588022476 9.99058524972742 525.152517278093 30.9486036956035 -89.7645225210528 1729154.32248786 T 13 CATAB v2.0e-lin.ifort 2019-Jul-14 15:23:28 2019-Jul-14 15:23
1975-Mar-22 20:00 00:05 Jupiter 1.89906842522954 1.89906761624482 1.8990692342189 3.59356888348742 3.46723193667348 2442494.333595770 4.7617011203203 374.248823230998 31.7347130558069 -85.7386107836067 1701782.47649389 T 13 CATAB v2.0e-lin.ifort 2019-Jul-14 15:23:28 2019-Jul-14 15:23
2022-Apr-08 20:11 < 00:01 Jupiter 1.91889477463713 1.91889397356512 1.91889557570915 3.34152804761461 3.20670958858645 2459678.341092415 0.740811433778946 107.237645649146 33.9151436150241 -86.6433589155536 1604578.76712835 T 13 CATAB v2.0e-lin.ifort 2019-Jul-14 15:23:28 2019-Jul-14 15:23
2069-Apr-21 21:22 00:06 Jupiter 1.95866821089511 1.95866668024343 1.95866974155837 3.15221973047189 3.01190850726293 2476858.389959545 6.29667239283987 305.598191963535 39.1830893697063 -75.1702544045324 1575316.81273533 T 13 CATAB v2.0e-lin.ifort 2019-Jul-14 15:23:28 2019-Jul-14 15:23
2107-Feb-03 14:48 00:10 Jupiter 1.98227575751777 1.98227287446423 1.98227864058325 4.33181307855807 4.23202179790626 2490659.116994207 9.81270396603177 299.909796295323 46.8437877894665 -64.3766466515558 1702042.27097884 T 13 CATAB v2.0e-lin.ifort 2019-Jul-14 15:23:28 2019-Jul-14 15:23
2154-Mar-01 05:36 00:15 Jupiter 1.92604621183967 1.92604297796482 1.92604944571561 4.16760602725658 4.06071356125524 2507851.733022601 14.9886375930454 197.408378821718 91.9812196526883 -49.8447723883107 750232.433391696 T 13 CATAB v2.0e-lin.ifort 2019-Jul-14 15:23:28 2019-Jul-14 15:23

Alternate Designations
 2012 WT20 = 2014 DB13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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