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(2020 HB11)
Classification: Centaur          SPK-ID: 54017270
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ 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 .7081566380952619 0.00091051  
a 16.57827382182716 0.053916 au
q 4.83825916673935 0.00066111 au
i 147.297215915841 0.00058024 deg
node 290.147725664494 0.0035138 deg
peri 104.5458585482636 0.039444 deg
M 1.684104277977435 0.004472 deg
tp 2459085.161614469971
(2020-Aug-23.66161447)
0.3502 TDB
period 24655.13527504197
67.50
120.28
0.3293
d
yr
n .01460142059591223 7.123e-05 deg/d
Q 28.31828847691497 0.092097 au
  Orbit Determination Parameters
   # obs. used (total)      74  
   data-arc span      37 days  
   first obs. used      2020-04-18  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .43786  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:25:56  

Additional Information
 Earth MOID = 4.0197 au 
 Jupiter MOID = 1.11884 au 
 T_jup = -1.807 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458977.5 (2020-May-08.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .707567359244185 0.00091027  
q 4.83828054626284 0.00066114 au
tp 2459085.171591504289
(2020-Aug-23.67159150)
0.35048 TDB
node 290.1463407026038 0.0035146 deg
peri 104.5457833119612 0.039471 deg
i 147.2975314164194 0.00058028 deg
  Orbit Determination Parameters
   # obs. used (total)      74  
   data-arc span      37 days  
   first obs. used      2020-04-18  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .43786  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:25:56  

Additional Information
 Jupiter MOID = 1.11884 au 
 T_jup = -1.807 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.285856970013955E-7 5.821120865553475E-7 -.0002779863721096719 2.625944821510293E-6 -2.949717478739117E-5 -5.269982095754066E-7
q 5.821120865553475E-7 4.371020298697566E-7 -.0002240619261891181 1.548780354132253E-6 -2.448886356715718E-5 -3.65630824441965E-7
tp -.0002779863721096719 -.0002240619261891181 .1228394699430729 -.0005745351354507439 .01376951096572539 .0001718133481372668
node 2.625944821510293E-6 1.548780354132253E-6 -.0005745351354507439 1.235256207834104E-5 -5.263426981348743E-5 -1.737056619816111E-6
peri -2.949717478739117E-5 -2.448886356715718E-5 .01376951096572539 -5.263426981348743E-5 .001557938314709871 1.809499148066685E-5
i -5.269982095754066E-7 -3.65630824441965E-7 .0001718133481372668 -1.737056619816111E-6 1.809499148066685E-5 3.367231548033833E-7

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.99   .4606 MPO545532 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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