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(2020 HP)
Classification: Apollo [NEO]          SPK-ID: 54016561
[ 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 2458941.5 (2020-Apr-02.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5530358851607092 0.0012242  
a 2.048082891309623 0.0052064 au
q .9154195566317012 0.0001801 au
i 2.960923664672845 0.0043861 deg
node 50.6244039491812 0.0058803 deg
peri 202.9782486784941 0.0019917 deg
M 341.828604703239 0.071897 deg
tp 2458995.538775150814
(2020-May-26.03877515)		 0.0077547 TDB
period 1070.581468103366
2.93		 4.0823
0.01118		 d
yr
n .3362658618010391 0.0012822 deg/d
Q 3.180746225987545 0.0080858 au
   Orbit Determination Parameters
   # obs. used (total)      22  
   data-arc span      32 days  
   first obs. used      2020-03-22  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .45763  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-23 07:00:34  

Additional Information
 Earth MOID = .016163 au 
 Jupiter MOID = 1.89041 au 
 T_jup = 3.585 
[ 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 24.096   .297 2 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
2020-Apr-28 20:40 < 00:01 Earth 0.0361463929556686 0.0359227467154379 0.0363700355793935 10.3783002665354 10.3711951722361 2458968.361427689 0.473955503331175 11137.649968155 13.4701213124296 -0.263740802583014 609.802026679 T 2 CATAB v2.0f-lin.ifort 2020-Apr-23 07:00:34 2020-Apr-23 07:00
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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