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JPL Small-Body Database Browser
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(2019 WE)
Classification: Apollo [NEO]          SPK-ID: 3893231
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4648236640313824 0.0002431  
a 1.740524923103429 0.00074927 au
q .9314877510085532 2.2133e-05 au
i .4315817307223965 0.00017891 deg
node 240.144872268688 0.00043254 deg
peri 214.6890729829591 0.00046036 deg
M 258.4474981646175 0.066595 deg
tp 2458837.095741183770
(2019-Dec-19.59574118)
0.0023786 TDB
period 838.7234709808124
2.30
0.54159
0.001483
d
yr
n .4292237101449087 0.00027716 deg/d
Q 2.549562095198306 0.0010976 au
  Orbit Determination Parameters
   # obs. used (total)      50  
   data-arc span      4 days  
   first obs. used      2019-11-17  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .50403  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-30 06:13:49  

Additional Information
 Earth MOID = 6.70592E-5 au 
 Jupiter MOID = 2.66167 au 
 T_jup = 4.014 
[ 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 26.8   .31418 E2019-WI7 autocmod 2.8

[ 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
2013-Mar-05 02:55 4_11:46 Earth 0.427809199956976 0.343473755162247 0.512155762673743 21.3354347840271 21.3351428641211 2456356.621428638 6465.87456197834 4207150.72641927 34.2912800899475 1.48843649913634 43118.8212296016 T 6 CATAB v2.0f-lin.ifort 2019-Nov-30 06:13:52 2019-Nov-30 06:14
2019-Nov-20 21:50 < 00:01 Earth 0.00846122322716001 0.00844890134213603 0.0084735447973088 8.50505846919382 8.46795194103088 2458808.409800575 0.0538596202702242 608.99625582232 0.746045181069646 -0.0273315931317236 1253.94091166515 T 6 CATAB v2.0f-lin.ifort 2019-Nov-30 06:13:52 2019-Nov-30 06:14
2019-Nov-21 03:35 < 00:01 Moon 0.00696736190064799 0.00695528671877258 0.00697943708575041 7.90757958020145 7.90698470869611 2458808.649328326 0.618985556169152 602.187006982251 0.661419889075051 1.17845069139908 27187.3724296233 T 6 CATAB v2.0f-lin.ifort 2019-Nov-30 06:13:52 2019-Nov-30 06:14
2029-Feb-22 19:14 7_03:40 Earth 0.233525612716819 0.121742770862738 0.345368176635563 15.4822114675403 15.4814744884297 2462190.301728609 10299.5974729611 5578756.75179253 20.4742432753017 1.76317864143919 45578.7452471638 T 6 CATAB v2.0f-lin.ifort 2019-Nov-30 06:13:52 2019-Nov-30 06:14
2058-Apr-24 06:12 14:56 Mars 0.0986264588612089 0.0702959208907716 0.129334103863629 14.4212898698073 14.4210885846872 2472842.758310323 896.241461694982 1659299.10222696 17.3735891371663 -26.1287000662943 372515.250277485 T 6 CATAB v2.0f-lin.ifort 2019-Nov-30 06:13:52 2019-Nov-30 06:14
2094-Nov-10 10:13 4_21:37 Earth 0.0935674457319027 0.0368325974928246 0.150317278523887 11.1052915461178 11.1027270162192 2486191.925977556 7057.4450851279 2830127.06154196 7.12236125658159 -1.31066881759292 39807.9873682816 T 6 CATAB v2.0f-lin.ifort 2019-Nov-30 06:13:52 2019-Nov-30 06:14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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