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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4696167624812739 0.00014996  
a 1.70149010143036 0.00044549 au
q .9024418286026998 1.8877e-05 au
i 6.664761164911325 0.0016987 deg
node 69.14127541854843 0.00011277 deg
peri 43.62291893182326 0.00024151 deg
M 248.1779928884147 0.044848 deg
tp 2458852.306739513338
(2020-Jan-03.80673951)
0.0021001 TDB
period 810.6671358021969
2.22
0.31838
0.0008717
d
yr
n .4440786903785874 0.0001744 deg/d
Q 2.50053837425802 0.00065469 au
  Orbit Determination Parameters
   # obs. used (total)      38  
   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      .4101  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-29 07:26:04  

Additional Information
 Earth MOID = .00182275 au 
 Jupiter MOID = 2.65078 au 
 T_jup = 4.061 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458814.5 (2019-Nov-27.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .469978624570301 0.00014978  
q .9022653743081919 1.8703e-05 au
tp 2458852.293852095423
(2020-Jan-03.79385210)
0.0021004 TDB
node 69.13104819567774 0.0001223 deg
peri 43.64356119620909 0.00021771 deg
i 6.669950365137885 0.0016954 deg
  Orbit Determination Parameters
   # obs. used (total)      38  
   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      .4101  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-29 07:26:04  

Additional Information
 Jupiter MOID = 2.65078 au 
 T_jup = 4.061 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.243430860453413E-8 -2.800697272040027E-9 -3.144457121268298E-7 1.829510865977546E-8 2.861442526130415E-8 2.539257685184424E-7
q -2.800697272040027E-9 3.498066638372704E-10 3.922788230270313E-8 -2.283260866682305E-9 -3.614952187450746E-9 -3.170402190261039E-8
tp -3.144457121268298E-7 3.922788230270313E-8 4.411885055228189E-6 -2.565277889775771E-7 -3.940626335615574E-7 -3.558445424215227E-6
node 1.829510865977546E-8 -2.283260866682305E-9 -2.565277889775771E-7 1.495759594636518E-8 2.314004792381958E-8 2.07036123299675E-7
peri 2.861442526130415E-8 -3.614952187450746E-9 -3.940626335615574E-7 2.314004792381958E-8 4.739886608282007E-8 3.249092303286469E-7
i 2.539257685184424E-7 -3.170402190261039E-8 -3.558445424215227E-6 2.07036123299675E-7 3.249092303286469E-7 2.874261038997551E-6

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   .34747 E2019-YB0 autocmod 2.8

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