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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 ]

[ 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.


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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457623.5 (2016-Aug-23.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1941213419015526 5.3489e-08  
q 1.846640978430357 1.2922e-07 au
tp 2457853.286044116404
(2017-Apr-09.78604412)
5.0763e-05 TDB
node 63.77426487800764 4.411e-05 deg
peri 280.862577622892 4.73e-05 deg
i 6.501591750769273 4.1368e-06 deg
  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
 Jupiter MOID = 2.69321 au 
 T_jup = 3.564 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.861051641614104E-15 -6.896162051130363E-15 8.510076732944857E-13 2.93672547442084E-14 2.669714368125192E-13 -1.817704810709007E-14
q -6.896162051130363E-15 1.669742804162571E-14 -2.29899936273973E-12 -6.730694748549011E-14 -7.302192308263474E-13 4.385320703984288E-14
tp 8.510076732944857E-13 -2.29899936273973E-12 2.576891447628649E-9 1.391639614737838E-12 8.891015053438555E-10 -2.607607274146823E-12
node 2.93672547442084E-14 -6.730694748549011E-14 1.391639614737838E-12 1.945724854967804E-9 -1.932286241083835E-9 -1.349789146275168E-11
peri 2.669714368125192E-13 -7.302192308263474E-13 8.891015053438555E-10 -1.932286241083835E-9 2.237332367991228E-9 1.252070895548604E-11
i -1.817704810709007E-14 4.385320703984288E-14 -2.607607274146823E-12 -1.349789146275168E-11 1.252070895548604E-11 1.711351158828448E-11

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

[ 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 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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