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(2020 HP)
Classification: Apollo [NEO]          SPK-ID: 54016561
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 2458941.5 (2020-Apr-02.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5530358471659325 0.0012242  
a 2.048082733188141 0.0052064 au
q .9154195637735191 0.0001801 au
i 2.960923515208167 0.0043861 deg
node 50.62440316158024 0.0058803 deg
peri 202.9782489944681 0.0019917 deg
M 341.8286025438341 0.071897 deg
tp 2458995.538775314467
(2020-May-26.03877531)
0.0077547 TDB
period 1070.581344122599
2.93
4.0823
0.01118
d
yr
n .3362659007429651 0.0012822 deg/d
Q 3.180745902602764 0.0080857 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .45763  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:25:01  

Additional Information
 Earth MOID = .016163 au 
 Jupiter MOID = 1.89041 au 
 T_jup = 3.585 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 1.49856817160504E-6 -2.20471869762829E-7 -9.491893657806507E-6 7.188305459155302E-6 2.421627118202474E-6 5.369229257119368E-6
q -2.20471869762829E-7 3.24365165260802E-8 1.396398483850059E-6 -1.057674603376032E-6 -3.562330625724227E-7 -7.899279957611556E-7
tp -9.491893657806507E-6 1.396398483850059E-6 6.013538456406813E-5 -4.550228938078543E-5 -1.535051312772685E-5 -3.400908638113749E-5
node 7.188305459155302E-6 -1.057674603376032E-6 -4.550228938078543E-5 3.457791449774443E-5 1.155018931836816E-5 2.575099794111729E-5
peri 2.421627118202474E-6 -3.562330625724227E-7 -1.535051312772685E-5 1.155018931836816E-5 3.967022564317578E-6 8.679930480057864E-6
i 5.369229257119368E-6 -7.899279957611556E-7 -3.400908638113749E-5 2.575099794111729E-5 8.679930480057864E-6 1.923774313277098E-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 24.2   .297 E2020-HC9 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 0.0361463897617079 0.0359227437061541 0.0363700322007593 10.3782995965085 10.3711945011209 2458968.361427663 0.473956587003667 11137.6407675793 13.4701205368684 -0.263740950894569 609.80260639377 T 3 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:01 2021-Apr-15 22:25
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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