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
JPL Small-Body Database Browser
Search: [ help ]  
(1994 WR12)
Classification: Aten [NEO]          SPK-ID: 3005969
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3971131877915381 7.3363e-07  
a .7571079765138129 1.8041e-09 au
q .4564504144580117 5.5592e-07 au
i 6.858690224762775 3.3897e-05 deg
node 62.68693844349914 8.1126e-05 deg
peri 206.0664424393426 4.432e-05 deg
M 39.35202619646617 0.00010343 deg
tp 2458974.197334777480
(2020-May-04.69733478)
6.9132e-05 TDB
period 240.6219042656933
0.66
8.6005e-07
2.355e-09
d
yr
n 1.496123144310628 5.3476e-09 deg/d
Q 1.057765538569614 2.5205e-09 au
  Orbit Determination Parameters
   # obs. used (total)      37  
   data-arc span      9141 days (25.03 yr)  
   first obs. used      1994-11-26  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66557  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-07 05:32:47  

Additional Information
 Earth MOID = .00176492 au 
 Jupiter MOID = 4.02632 au 
 T_jup = 7.568 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 22.3   n/a MPO374364  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-10 07:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin