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 ]  
392157 (2009 HB84)
Classification: Main-belt Asteroid          SPK-ID: 2392157
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1738492411662715 9.3907e-08  
a 3.179284433582062 8.3003e-08 au
q 2.626568247352081 3.372e-07 au
i 19.17460400928198 1.7692e-05 deg
node 59.84889717568377 2.9884e-05 deg
peri 74.07783561836112 6.26e-05 deg
M 347.7447043547302 6.0753e-05 deg
tp 2458670.987773737659
(2019-Jul-06.48777374)
0.00035103 TDB
period 2070.582324576674
5.67
8.1086e-05
2.22e-07
d
yr
n .1738641326775554 6.8087e-09 deg/d
Q 3.732000619812043 9.7433e-08 au
  Orbit Determination Parameters
   # obs. used (total)      91  
   data-arc span      5742 days (15.72 yr)  
   first obs. used      2003-04-27  
   last obs. used      2019-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60352  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:45:21  

Additional Information
 Earth MOID = 1.71728 au 
 Jupiter MOID = 1.80804 au 
 T_jup = 3.091 
[ 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 15.6   n/a MPO427953  

392157 (2009 HB84)          Discovered 2009-Mar-01 by Mt. Lemmon Survey at Mount Lemmon
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