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JPL Small-Body Database Browser
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(2019 WH2)
Classification: Apollo [NEO]          SPK-ID: 3893457
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 .4696189959498621 0.00015048  
a 1.701496752565311 0.00044706 au
q .9024415560136388 1.8943e-05 au
i 6.664786100815394 0.0017047 deg
node 69.14127706544174 0.00011317 deg
peri 43.622919966548 0.00024201 deg
M 248.1786630729899 0.045006 deg
tp 2458852.306706819751
(2020-Jan-03.80670682)
0.0021076 TDB
period 810.671889160843
2.22
0.3195
0.0008747
d
yr
n .4440760865319378 0.00017502 deg/d
Q 2.500551949116983 0.00065701 au
  Orbit Determination Parameters
   # obs. used (total)      36  
   data-arc span      7 days  
   first obs. used      2019-11-25  
   last obs. used      2019-12-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .42074  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-07 05:37:45  

Additional Information
 Earth MOID = .00182275 au 
 Jupiter MOID = 2.65076 au 
 T_jup = 4.061 
[ 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 26.773   .35698 6 autocmod 2.8

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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