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 ]  
392160 (2009 HK99)
Classification: Main-belt Asteroid          SPK-ID: 2392160
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07656981783481054 1.6709e-07  
a 3.008245115239821 5.1223e-08 au
q 2.777904334763449 4.9465e-07 au
i 5.844892910270557 1.7554e-05 deg
node 199.1603014472784 7.89e-05 deg
peri 12.23201240600788 0.00010731 deg
M 48.0576556086329 6.6737e-05 deg
tp 2458746.093421499290
(2019-Sep-19.59342150)
0.00035356 TDB
period 1905.760218644611
5.22
4.8676e-05
1.333e-07
d
yr
n .1889009941953948 4.8248e-09 deg/d
Q 3.238585895716193 5.5145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      108  
   data-arc span      5911 days (16.18 yr)  
   first obs. used      2003-01-28  
   last obs. used      2019-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69399  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:17:24  

Additional Information
 Earth MOID = 1.77262 au 
 Jupiter MOID = 1.72347 au 
 T_jup = 3.238 
[ 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 16.7   n/a MPO472028  

392160 (2009 HK99)          Discovered 2009-Apr-20 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2009 HK99 = 2008 AO33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-06 12:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin