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(2019 XH2)
Classification: Apollo [NEO]          SPK-ID: 3907553
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1512579413611338 0.00015965  
a 1.006072582302587 1.9027e-05 au
q .8538961146436178 0.00014449 au
i 3.78705091796036 0.0037685 deg
node 76.16158448357307 0.00058617 deg
peri 261.2654196760542 0.00972 deg
M 87.56965967564486 0.027945 deg
tp 2459110.841068579517
(2020-Sep-18.34106858)
0.026069 TDB
period 368.5890230809122
1.01
0.010456
2.863e-05
d
yr
n .9766975613947495 2.7707e-05 deg/d
Q 1.158249049961556 2.1905e-05 au
  Orbit Determination Parameters
   # obs. used (total)      22  
   data-arc span      9 days  
   first obs. used      2019-12-06  
   last obs. used      2019-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .62826  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-15 06:28:43  

Additional Information
 Earth MOID = .00786079 au 
 Jupiter MOID = 4.05289 au 
 T_jup = 6.039 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458824.5 (2019-Dec-07.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1520572381245411 0.0001589  
q .851793222317452 0.00013008 au
tp 2458742.882368974892
(2019-Sep-16.38236897)
0.010973 TDB
node 76.23664712139491 9.2947e-05 deg
peri 260.7332011039908 0.0034027 deg
i 3.786612759447682 0.0038665 deg
  Orbit Determination Parameters
   # obs. used (total)      22  
   data-arc span      9 days  
   first obs. used      2019-12-06  
   last obs. used      2019-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .62826  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-15 06:28:43  

Additional Information
 Jupiter MOID = 4.05289 au 
 T_jup = 6.039 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.524849725610133E-8 -2.066791568005582E-8 1.742395698486274E-6 -1.345530217981913E-8 -5.332173962992646E-7 6.141726324985762E-7
q -2.066791568005582E-8 1.691974152029943E-8 -1.42586132956036E-6 1.101368326641512E-8 4.370959528147728E-7 -5.027513005712485E-7
tp 1.742395698486274E-6 -1.42586132956036E-6 .0001204120308580977 -9.340864575517998E-7 -3.656663013681338E-5 4.236552811785808E-5
node -1.345530217981913E-8 1.101368326641512E-8 -9.340864575517998E-7 8.639064946298208E-9 2.77259286540562E-7 -3.257087117855833E-7
peri -5.332173962992646E-7 4.370959528147728E-7 -3.656663013681338E-5 2.77259286540562E-7 1.157850397697307E-5 -1.299027117983618E-5
i 6.141726324985762E-7 -5.027513005712485E-7 4.236552811785808E-5 -3.257087117855833E-7 -1.299027117983618E-5 1.49499408689362E-5

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 28.9   .43546 E2019-XC4 autocmod 2.8

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