Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
(2020 HB)
Classification: Apollo [NEO]          SPK-ID: 54016542
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.


[ revert to old Java-based viewer ]

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 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 6.070846746264558E-6 -1.21095353687606E-6 -9.943887679642741E-5 .0001632999899523844 -.0001395218404161667 6.096597341002516E-6
q -1.21095353687606E-6 2.417676566796735E-7 1.980614133430383E-5 -3.346903117087019E-5 2.867966170135091E-5 -1.20631095101071E-6
tp -9.943887679642741E-5 1.980614133430383E-5 .001632644995974399 -.002553989594668428 .002170672344434565 -.0001011804275691239
node .0001632999899523844 -3.346903117087019E-5 -.002553989594668428 .008330179993667586 -.00749882760998907 .0001207788885910289
peri -.0001395218404161667 2.867966170135091E-5 .002170672344434565 -.00749882760998907 .006770454692930913 -9.899404734861973E-5
i 6.096597341002516E-6 -1.20631095101071E-6 -.0001011804275691239 .0001207788885910289 -9.899404734861973E-5 6.597154476941914E-6

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-24 13:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin