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 ]  
266589 (2008 HN61)
Classification: Main-belt Asteroid          SPK-ID: 2266589
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08476717243941764 5.2741e-08  
a 2.417490367298043 1.675e-08 au
q 2.212566544462659 1.3521e-07 au
i 4.957183094791155 6.4384e-06 deg
node 233.358353806783 6.4894e-05 deg
peri 29.50470764497375 7.6817e-05 deg
M 301.974047541283 4.3127e-05 deg
tp 2458821.791805597411
(2019-Dec-04.29180560)
0.00016497 TDB
period 1372.92102308439
3.76
1.4269e-05
3.907e-08
d
yr
n .2622146459606451 2.7252e-09 deg/d
Q 2.622414190133427 1.817e-08 au
  Orbit Determination Parameters
   # obs. used (total)      233  
   data-arc span      21402 days (58.60 yr)  
   first obs. used      1960-10-24  
   last obs. used      2019-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59765  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:42  

Additional Information
 Earth MOID = 1.19833 au 
 Jupiter MOID = 2.4177 au 
 T_jup = 3.506 
[ 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 16.8   n/a MPO433731  

266589 (2008 HN61)          Discovered 2008-Apr-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ 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 2019-Dec-07 19:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin