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215678 (2003 WR)
Classification: Main-belt Asteroid          SPK-ID: 2215678
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1939256453630891 5.2164e-08  
a 2.291495616377655 1.2994e-08 au
q 1.847115850124928 1.2581e-07 au
i 6.499356092156135 4.1036e-06 deg
node 63.75772697108309 4.3227e-05 deg
peri 280.6014951568372 4.6461e-05 deg
M 23.02359110316565 1.2569e-05 deg
tp 2459119.469683376868
(2020-Sep-26.96968338)		 4.4567e-05 TDB
period 1267.001044868134
3.47		 1.0777e-05
2.951e-08		 d
yr
n .2841355194284529 2.4168e-09 deg/d
Q 2.735875382630381 1.5514e-08 au
   Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      6853 days (18.76 yr)  
   first obs. used      2002-04-08  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56893  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 12:46:41  

Additional Information
 Earth MOID = .851633 au 
 Jupiter MOID = 2.69502 au 
 T_jup = 3.564 
[ 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 17.10   n/a E2021B55  

215678 (2003 WR)          Discovered 2003-Nov-16 by CSS at Catalina
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ 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
2025-Jan-30 08:56 < 00:01 Eunom 0.0281720512104717 0.0281689936274146 0.0281751091185816 5.86394628845004 5.86394620347617 2460705.872090840 0.661333851786794 219.176388362806 43.9384632924766 -47.1860083872846 71528.0319962458 T 17 CATAB v2.0f-lin.ifort 2021-Feb-24 12:46:42 2021-Feb-24 12:46
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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