Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP

Significant website upgrade scheduled for September 27. More details available here.

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

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04098448243184642 5.676e-08  
a 3.023441075099741 4.8735e-08 au
q 2.899526907473593 1.6183e-07 au
i 10.01231231439534 6.052e-06 deg
node 46.15405380293267 3.4121e-05 deg
peri 85.81080387883192 8.7906e-05 deg
M 166.6671793804651 8.4504e-05 deg
tp 2458507.507135560266
(2019-Jan-24.00713556)
0.00044162 TDB
period 1920.218680054145
5.26
4.6428e-05
1.271e-07
d
yr
n .1874786469579855 4.5329e-09 deg/d
Q 3.147355242725889 5.0732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      170  
   data-arc span      6282 days (17.20 yr)  
   first obs. used      2004-05-24  
   last obs. used      2021-08-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6657  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 04:41:47  

Additional Information
 Earth MOID = 1.93703 au 
 Jupiter MOID = 1.89356 au 
 T_jup = 3.221 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458069.5 (2017-Nov-12.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0428303597054153 5.6554e-08  
q 2.891813734446769 1.6229e-07 au
tp 2458502.154790364391
(2019-Jan-18.65479036)
0.00042419 TDB
node 46.21225104191227 3.409e-05 deg
peri 84.45377258523779 8.4951e-05 deg
i 10.01961461139358 6.0556e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      170  
   data-arc span      6282 days (17.20 yr)  
   first obs. used      2004-05-24  
   last obs. used      2021-08-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6657  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 04:41:47  

Additional Information
 Jupiter MOID = 1.89356 au 
 T_jup = 3.221 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.198376930520669E-15 -8.824563488655389E-15 5.838154101872033E-12 -7.676008756992661E-15 9.943652984717499E-13 3.386672635374343E-15
q -8.824563488655389E-15 2.63373888797246E-14 -9.647771637063787E-12 2.275478148237352E-14 -1.626918133343145E-12 -6.480456170974321E-15
tp 5.838154101872033E-12 -9.647771637063787E-12 1.799372354161536E-7 4.766834356527043E-11 3.304169610694182E-8 7.116858912053222E-12
node -7.676008756992661E-15 2.275478148237352E-14 4.766834356527043E-11 1.162101458761362E-9 -1.1348964280951E-9 -1.764624608652931E-11
peri 9.943652984717499E-13 -1.626918133343145E-12 3.304169610694182E-8 -1.1348964280951E-9 7.21673879161954E-9 1.852941561495031E-11
i 3.386672635374343E-15 -6.480456170974321E-15 7.116858912053222E-12 -1.764624608652931E-11 1.852941561495031E-11 3.667079034565726E-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 16.25   n/a E2021B25  

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

[ show close-approach data ]
Alternate Designations
 2012 WT20 = 2014 DB13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-22 10:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin