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JPL Small-Body Database Browser
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(2020 HS9)
Classification: Apollo [NEO]          SPK-ID: 54016918
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.


Orbital Elements at Epoch 2458964.5 (2020-Apr-25.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7094520762903564 0.001741  
a 2.568038528350381 0.014026 au
q .7461382624185718 0.00039561 au
i 5.558038263703648 0.010937 deg
node 222.2462737194742 0.0016904 deg
peri 70.03657731794897 0.0031441 deg
M 347.4533275688356 0.11164 deg
tp 2459016.887393196828
(2020-Jun-16.38739320)
0.036935 TDB
period 1503.14449144408
4.12
12.315
0.03372
d
yr
n .2394979338640597 0.0019621 deg/d
Q 4.389938794282191 0.023977 au
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      11 days  
   first obs. used      2020-04-20  
   last obs. used      2020-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .31945  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:25:51  

Additional Information
 Earth MOID = .00323926 au 
 Jupiter MOID = .955549 au 
 T_jup = 3.012 
[ 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 25.3   .42475 MPO545526 autocmod 2.8

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