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(2020 HE5)
Classification: Apollo [NEO]          SPK-ID: 54016725
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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07520769712562995 5.2582e-05  
a 1.002547983570531 1.7135e-05 au
q .9271486584682471 3.6914e-05 au
i 7.216452563916384 0.0069354 deg
node 211.2540409718001 0.00061487 deg
peri 251.0779357669535 0.010382 deg
M 336.4291659917432 0.023284 deg
tp 2459224.506487844522
(2021-Jan-10.00648784)
0.02433 TDB
period 366.653790061085
1.00
0.0094002
2.574e-05
d
yr
n .9818526625349312 2.5173e-05 deg/d
Q 1.077947308672814 1.8424e-05 au
  Orbit Determination Parameters
   # obs. used (total)      35  
   data-arc span      7 days  
   first obs. used      2020-04-22  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .34446  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-29 06:53:47  

Additional Information
 Earth MOID = .0142983 au 
 Jupiter MOID = 3.94914 au 
 T_jup = 6.059 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458962.5 (2020-Apr-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07623382081331447 5.0777e-05  
q .9258641498728163 3.418e-05 au
tp 2458858.584222261320
(2020-Jan-10.08422226)
0.012914 TDB
node 211.3781041902706 0.00026303 deg
peri 251.4332156364524 0.0093169 deg
i 7.256771091043429 0.0068601 deg
  Orbit Determination Parameters
   # obs. used (total)      35  
   data-arc span      7 days  
   first obs. used      2020-04-22  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .34446  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-29 06:53:47  

Additional Information
 Jupiter MOID = 3.94914 au 
 T_jup = 6.059 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.578283777266602E-9 -1.734794454409821E-9 6.533669806123972E-7 1.333367239832363E-8 4.695426200987806E-7 3.480827790255394E-7
q -1.734794454409821E-9 1.168275745153349E-9 -4.387795552112464E-7 -8.967963988796221E-9 -3.149881065892725E-7 -2.342281853294232E-7
tp 6.533669806123972E-7 -4.387795552112464E-7 .0001667684132266242 3.388750043896601E-6 .0001202262887181489 8.800599685879979E-5
node 1.333367239832363E-8 -8.967963988796221E-9 3.388750043896601E-6 6.918505946502824E-8 2.437731504469625E-6 1.797882261523672E-6
peri 4.695426200987806E-7 -3.149881065892725E-7 .0001202262887181489 2.437731504469625E-6 8.680535884149353E-5 6.320255736908292E-5
i 3.480827790255394E-7 -2.342281853294232E-7 8.800599685879979E-5 1.797882261523672E-6 6.320255736908292E-5 4.706159766436234E-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 27.7   .35737 E2020-HM9 autocmod 2.8

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