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26330 (1998 WN5)
Classification: Main-belt Asteroid          SPK-ID: 2026330
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1043324457170384 6.4555e-08  
a 2.975646544252257 1.9094e-08 au
q 2.665190062700965 1.9733e-07 au
i .8925329208283679 6.3437e-06 deg
node 355.8076618952129 0.00026106 deg
peri 348.4562755308933 0.00026198 deg
M 131.9622651254037 2.3091e-05 deg
tp 2458313.245325462198
0.00012067 TDB
period 1874.86689924952
n .1920136304844372 1.8482e-09 deg/d
Q 3.286103025803548 2.1086e-08 au
  Orbit Determination Parameters
   # obs. used (total)      990  
   data-arc span      10051 days (27.52 yr)  
   first obs. used      1992-07-26  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5311  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:43:00  

Additional Information
 Earth MOID = 1.65751 au 
 Jupiter MOID = 2.08791 au 
 T_jup = 3.253 
[ 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 14.6   n/a MPO459040  
rotation period rot_per 4.794 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

26330 (1998 WN5)          Discovered 1998-Nov-20 by Kagawa, T. at Gekko
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

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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
2084-May-27 01:38 00:01 Hygie 0.0479552311408492 0.0479421135459151 0.0479683509897593 3.29580011590638 3.29579987144763 2482372.567763211 1.01570609028671 835.486935179013 80.1737510236965 38.8256795169152 56347.9686384964 T 27 CATAB v2.0f-lin.ifort 2020-Feb-23 00:43:02 2020-Feb-23 00:43

Alternate Designations
 1998 WN5 = 1992 OO10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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