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(2020 HA)
Classification: Apollo [NEO]          SPK-ID: 54016541
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 2458956.5 (2020-Apr-17.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6458241464455368 0.0015571  
a 2.668689464127302 0.011451 au
q .9451853688290902 0.00010002 au
i 5.26529254278623 0.0097242 deg
node 195.6581724007903 0.0028382 deg
peri 48.84706800743697 0.0082901 deg
M 353.4658200977066 0.044505 deg
tp 2458985.402411178089
(2020-May-15.90241118)
0.010893 TDB
period 1592.375505372911
4.36
10.249
0.02806
d
yr
n .2260773283596153 0.0014551 deg/d
Q 4.392193559425513 0.018846 au
  Orbit Determination Parameters
   # obs. used (total)      41  
   data-arc span      1 day  
   first obs. used      2020-04-16  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .44984  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-17 18:12:06  

Additional Information
 Earth MOID = .025125 au 
 Jupiter MOID = .694937 au 
 T_jup = 3.039 
[ 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 25.721   .51523 1 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-Apr-19 13:26 < 00:01 Earth 0.0256773201665099 0.0255191524124589 0.025835485159344 12.0118297436 12.003187833437 2458959.059436518 0.705403518214382 7875.92491287031 41.2355236227382 -0.220121826564415 335.559952101214 T 1 CATAB v2.0f-lin.ifort 2020-Apr-17 18:12:07 2020-Apr-17 18:12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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