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(2020 HB)
Classification: Apollo [NEO]          SPK-ID: 54016542
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458956.5 (2020-Apr-17.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5868851884158213 0.0024639  
a 2.039615756759102 0.010975 au
q .8425954790576583 0.0004917 au
i .9465407122641255 0.0025685 deg
node 256.8723383587233 0.09127 deg
peri 9.435388857786728 0.082283 deg
M 345.3514202464517 0.13189 deg
tp 2458999.792631381577
(2020-May-30.29263138)
0.040406 TDB
period 1063.94937663445
2.91
8.5876
0.02351
d
yr
n .3383619633659397 0.0027311 deg/d
Q 3.236636034460545 0.017416 au
  Orbit Determination Parameters
   # obs. used (total)      25  
   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      .27591  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-17 18:12:06  

Additional Information
 Earth MOID = .0120176 au 
 Jupiter MOID = 1.87975 au 
 T_jup = 3.565 
[ 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 25.152   .44003 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-21 12:14 00:02 Earth 0.0148088806919058 0.0146418804753955 0.0149758736726194 13.5223794774617 13.5090672469735 2458961.009659614 2.4834755147892 8311.41545307149 41.2892353660767 0.206358818556612 190.242868310891 T 1 CATAB v2.0f-lin.ifort 2020-Apr-17 18:12:07 2020-Apr-17 18:12
2151-Apr-06 05:42 1_15:46 Earth 0.253181437696628 0.115805907344578 0.392749743897291 21.2657536432385 21.2652587576921 2506791.737549783 2385.64017232696 7004498.65141305 578.015277606752 -8.0876830198019 8963.16440569387 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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