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JPL Small-Body Database Browser
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(2015 WJ2)
Classification: Apollo [NEO]          SPK-ID: 3735491
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


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Orbital Elements at Epoch 2457348.5 (2015-Nov-22.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6484658233526297 0.0046893  
a 1.740149052949477 0.018374 au
q .6117218645722956 0.0017017 au
i 2.991344065456019 0.021686 deg
node 59.87739668491936 0.0019865 deg
peri 266.5077087193336 0.0054993 deg
M 22.45367698199168 0.42485 deg
tp 2457296.204650364455
(2015-Sep-30.70465036)
0.16125 TDB
period 838.4517994044053
2.30
13.28
0.03636
d
yr
n .4293627853810156 0.0068003 deg/d
Q 2.868576241326658 0.030289 au
  Orbit Determination Parameters
   # obs. used (total)      17  
   data-arc span      1 day  
   first obs. used      2015-11-21  
   last obs. used      2015-11-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      9  
   norm. resid. RMS      .26142  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:30:26  

Additional Information
 Earth MOID = .00330791 au 
 Jupiter MOID = 2.49388 au 
 T_jup = 3.869 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 26.0   n/a MPO358491  

[ 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
2015-Nov-17 11:12 00:16 Moon 0.00560992361160105 0.00552168817022718 0.00569842378240448 18.735628484497 18.7353166693762 2457343.966717123 15.9857266921107 4807.64749986253 121.774347190638 23.5812445676586 2518.09938987455 T 3 CATAB v2.0e-lin.ifort 2017-Nov-30 08:55:05 2018-Dec-11 16:46
2015-Nov-17 13:18 00:14 Earth 0.00467777742700138 0.00458095442033134 0.00477458871441242 19.6867906145292 19.657836027832 2457344.054459507 14.3620365403645 4813.72162333748 41.2845538644282 -0.0720057967879 115.736613878881 T 3 CATAB v2.0e-lin.ifort 2017-Nov-30 08:55:05 2018-Dec-11 16:46
2054-Nov-25 23:52 6_19:16 Earth 0.166314605254024 0.0899311335956386 0.242858898845002 24.5982362626101 24.5975849586055 2471597.494427838 9795.94283145019 3821659.92029384 47331.864250835 -3.44354235082974 31.0869297696126 T 3 CATAB v2.0e-lin.ifort 2017-Nov-30 08:55:05 2018-Dec-11 16:46
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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