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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
392146 (2009 HB39)
Classification: Main-belt Asteroid          SPK-ID: 2392146
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0630803632121151 9.5536e-08  
a 3.065554932934962 6.345e-08 au
q 2.872178614318734 3.0163e-07 au
i 10.33909095886027 1.3949e-05 deg
node 162.4222246232526 4.8336e-05 deg
peri 97.9242158037334 0.00012573 deg
M 278.0575599930447 0.00011955 deg
tp 2459046.739974584032
(2020-Jul-16.23997458)
0.00065623 TDB
period 1960.47848754096
5.37
6.0866e-05
1.666e-07
d
yr
n .1836286408077602 5.701e-09 deg/d
Q 3.25893125155119 6.7453e-08 au
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      5850 days (16.02 yr)  
   first obs. used      2003-04-01  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64661  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 08:40:04  

Additional Information
 Earth MOID = 1.88067 au 
 Jupiter MOID = 1.83632 au 
 T_jup = 3.205 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO252085  

392146 (2009 HB39)          Discovered 2009-Apr-18 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin