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(2019 WU)
Classification: Apollo [NEO]          SPK-ID: 3893380
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6110205558188717 0.00076818  
a 2.332179655249509 0.0044355 au
q .9071699460294894 6.6221e-05 au
i .6503621285153115 0.00056786 deg
node 73.16501050882694 0.0032132 deg
peri 28.97310481253358 0.0011118 deg
M 44.06908692190365 0.12363 deg
tp 2458841.252368358015
(2019-Dec-23.75236836)
0.0075664 TDB
period 1300.892562006323
3.56
3.7112
0.01016
d
yr
n .2767330758235592 0.00078947 deg/d
Q 3.757189364469528 0.0071457 au
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      9 days  
   first obs. used      2019-11-19  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .40175  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-01 04:52:09  

Additional Information
 Earth MOID = .00171215 au 
 Jupiter MOID = 1.43453 au 
 T_jup = 3.291 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458814.5 (2019-Nov-27.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6119211394251095 0.00076647  
q .9071544195850789 6.6216e-05 au
tp 2458841.245930765568
(2019-Dec-23.74593077)
0.0075265 TDB
node 73.17469100301031 0.0031854 deg
peri 28.95379484037851 0.0010457 deg
i .6498655038292339 0.00056889 deg
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      9 days  
   first obs. used      2019-11-19  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .40175  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-01 04:52:09  

Additional Information
 Jupiter MOID = 1.43453 au 
 T_jup = 3.291 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.874798262733298E-7 -5.075231448395295E-8 -5.768707104291818E-6 2.438173510735303E-6 -7.858160670642918E-7 4.359368288932536E-7
q -5.075231448395295E-8 4.384594436923233E-9 4.983400957372581E-7 -2.10618355198247E-7 6.784364478774091E-8 -3.766169111060634E-8
tp -5.768707104291818E-6 4.983400957372581E-7 5.664831861728779E-5 -2.39439283255146E-5 7.723394300370678E-6 -4.280446302556524E-6
node 2.438173510735303E-6 -2.10618355198247E-7 -2.39439283255146E-5 1.01465092830055E-5 -3.292707012226081E-6 1.807390843559002E-6
peri -7.858160670642918E-7 6.784364478774091E-8 7.723394300370678E-6 -3.292707012226081E-6 1.093562507919448E-6 -5.809623348049454E-7
i 4.359368288932536E-7 -3.766169111060634E-8 -4.280446302556524E-6 1.807390843559002E-6 -5.809623348049454E-7 3.23634340722609E-7

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 27.2   .65124 E2019X06 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
2019-Nov-24 10:56 < 00:01 Earth 0.0145214040949158 0.0144725937581597 0.0145702135038497 11.4365750366183 11.4205199479492 2458811.955736911 0.0500838980176217 2427.04924314037 2.55415069677532 -0.0737002042742236 597.277709198539 T 4 CATAB v2.0f-lin.ifort 2019-Dec-01 04:52:12 2019-Dec-01 04:52
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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