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(2020 HE)
Classification: Apollo [NEO]          SPK-ID: 54016544
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458959.5 (2020-Apr-20.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9417680777061974 0.0013314  
a 2.514792042826874 0.04307 au
q .1464411748229676 0.00084005 au
i 20.48780570917125 0.13299 deg
node 206.7671015471876 0.010757 deg
peri 216.29531032 0.026776 deg
M 10.96903437543287 0.30304 deg
tp 2458915.116919723272
(2020-Mar-06.61691972)
0.085969 TDB
period 1456.637690497852
3.99
37.421
0.1025
d
yr
n .2471445043255463 0.0063492 deg/d
Q 4.88314291083078 0.083633 au
  Orbit Determination Parameters
   # obs. used (total)      41  
   data-arc span      6 days  
   first obs. used      2020-04-16  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      9  
   norm. resid. RMS      .33917  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-23 07:00:34  

Additional Information
 Earth MOID = .025323 au 
 Jupiter MOID = 1.07969 au 
 T_jup = 2.507 
[ 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 23.729   .26181 4 autocmod 2.8

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