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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1942011164868891 5.3415e-08  
a 2.292246312303932 1.3276e-08 au
q 1.847089519191554 1.2905e-07 au
i 6.4995559930855 4.1355e-06 deg
node 63.76660961183024 4.4129e-05 deg
peri 280.5845016420524 4.7316e-05 deg
M 326.2197001959508 1.279e-05 deg
tp 2459119.446413015141
(2020-Sep-26.94641302)
4.4541e-05 TDB
period 1267.623701797878
3.47
1.1012e-05
3.015e-08
d
yr
n .2839959520237827 2.4672e-09 deg/d
Q 2.737403105416309 1.5854e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      6789 days (18.59 yr)  
   first obs. used      2002-04-08  
   last obs. used      2020-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56412  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 05:26:49  

Additional Information
 Earth MOID = .853371 au 
 Jupiter MOID = 2.69321 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 17.0   n/a MPO268204  

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

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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 16 CATAB v2.0f-lin.ifort 2020-Dec-18 05:26:50 2020-Dec-18 05:26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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