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
JPL Small-Body Database Browser
Search: [ help ]  
226257 (2002 YZ31)
Classification: Main-belt Asteroid          SPK-ID: 2226257
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]
Orbit Diagram
[ switch to new HTML5 viewer ]

Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2352431289958537 5.2557e-08  
a 2.34136813203938 1.0926e-08 au
q 1.790577366527259 1.21e-07 au
i 2.876962484817313 6.3436e-06 deg
node 326.1691120585659 0.00011473 deg
peri 87.9161603252454 0.00011601 deg
M 350.5296064543916 1.2903e-05 deg
tp 2459034.924568653587
4.6896e-05 TDB
period 1308.588144263329
n .2751056561059266 1.9256e-09 deg/d
Q 2.8921588975515 1.3496e-08 au
  Orbit Determination Parameters
   # obs. used (total)      440  
   data-arc span      7122 days (19.50 yr)  
   first obs. used      1998-09-26  
   last obs. used      2018-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6048  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Apr-05 16:05:42  

Additional Information
 Earth MOID = .804746 au 
 Jupiter MOID = 2.48573 au 
 T_jup = 3.525 
[ 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 16.5   n/a MPO433482  

226257 (2002 YZ31)          Discovered 2002-Dec-31 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
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
1993-Jan-16 21:44 00:02 Amphi 0.0471368888195217 0.0471339560782953 0.0471398216363537 2.53765903074564 2.53765898268618 2449004.405611795 2.33457606952139 179.186463292014 62.2750359155204 -38.17965918793 76426.2069618961 T 14 CATAB v2.0e-lin.ifort 2018-Apr-05 16:05:53 2018-Dec-17 22:36

Alternate Designations
 2002 YZ31 = 1998 SF108 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Sep-25 07:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin