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JPL Small-Body Database Browser
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324088 (2005 WJ121)
Classification: Main-belt Asteroid          SPK-ID: 2324088
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05652733461598408 5.5408e-08  
a 2.881578427938322 3.1203e-08 au
q 2.718690479920051 1.7154e-07 au
i 5.323206814746015 6.7155e-06 deg
node 228.9945173007253 7.9545e-05 deg
peri 195.4522852870675 0.00011046 deg
M 266.8580271487945 7.727e-05 deg
tp 2459062.760755817160
(2020-Aug-01.26075582)
0.00038587 TDB
period 1786.668963518992
4.89
2.902e-05
7.945e-08
d
yr
n .201492278284697 3.2727e-09 deg/d
Q 3.044466375956592 3.2966e-08 au
  Orbit Determination Parameters
   # obs. used (total)      183  
   data-arc span      6910 days (18.92 yr)  
   first obs. used      2000-11-25  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58704  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 09:07:59  

Additional Information
 Earth MOID = 1.7318 au 
 Jupiter MOID = 2.17116 au 
 T_jup = 3.285 
[ 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 16.2   n/a MPO266818  

324088 (2005 WJ121)          Discovered 2005-Nov-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120406/Numbers.arcLast Updated: 2012-04-09

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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
2011-Jan-13 01:35 00:02 Psych 0.018842497836172 0.018840767123076 0.0188442285502442 2.5663222743666 2.56632202415726 2455574.565801190 1.67719017974923 131.771608409755 85.9223406717165 -86.6324269280007 32701.4046131304 T 11 CATAB v2.0f-lin.ifort 2019-Nov-08 09:08:07 2019-Nov-08 09:08
2020-Dec-29 12:31 00:01 Europ 0.0312648317698038 0.0312587752335638 0.0312708890972801 3.36740998256498 3.36740988161188 2459213.021681465 1.42782551223778 396.543468256087 81.2811513569421 -41.521235308649 39115.8618116524 T 11 CATAB v2.0f-lin.ifort 2019-Nov-08 09:08:07 2019-Nov-08 09:08
2116-Apr-29 17:57 00:43 Cybel 0.0316812889769708 0.0316461313479887 0.0317164751075421 2.31308766092578 2.31308757791757 2494032.247987875 43.3009156366834 2304.48936053369 81.7626065256015 40.5705419062944 37677.0723977611 T 11 CATAB v2.0f-lin.ifort 2019-Nov-08 09:08:07 2019-Nov-08 09:08

Alternate Designations
 2005 WJ121 = 2001 BN39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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