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JPL Small-Body Database Browser
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(2020 HA9)
Classification: Apollo [NEO]          SPK-ID: 54016838
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 2458968.5 (2020-Apr-29.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6021216169153426 0.001543  
a 1.891776630012493 0.0062697 au
q .7526970267067128 0.00042445 au
i 7.078207050631317 0.017744 deg
node 216.3474808666085 0.00013184 deg
peri 89.2533788192775 0.00104 deg
M 335.9433439495609 0.13504 deg
tp 2459032.009101594536
(2020-Jul-01.50910159)
0.040769 TDB
period 950.3929609375474
2.60
4.7247
0.01294
d
yr
n .3787906842711312 0.0018831 deg/d
Q 3.030856233318273 0.010045 au
  Orbit Determination Parameters
   # obs. used (total)      26  
   data-arc span      17 days  
   first obs. used      2020-04-27  
   last obs. used      2020-05-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .67972  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:25:45  

Additional Information
 Earth MOID = .0374712 au 
 Jupiter MOID = 2.31407 au 
 T_jup = 3.706 
[ 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 25.1   .46729 MPO545524 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-May-15 22:46 < 00:01 Earth 0.0466470081841324 0.0463202505704746 0.046973763700646 15.7648273956469 15.7612037204935 2458985.448624578 0.113690980270836 16286.5608461755 16.3031897689926 0.0512512803480149 321.275800741592 T 5 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:45 2021-Apr-15 22:25
2020-Jun-15 08:43 06:17 Venus 0.123854075650981 0.123629494875846 0.12407978020996 13.1549471653112 13.1536142838198 2459015.863213544 376.86541329414 21730.9707557557 140.829402901999 -58.9479160822261 37207.9267833454 T 5 CATAB v2.0g-lin.ifort 2021-Apr-15 22:25:45 2021-Apr-15 22:25
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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