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 ]  
295381 (2008 HR68)
Classification: Main-belt Asteroid          SPK-ID: 2295381
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .06265702907411194 1.0834e-07  
a 2.846126063383575 3.3768e-08 au
q 2.667796259881563 3.0068e-07 au
i 12.36869007946651 1.1301e-05 deg
node 227.8912442646075 3.5245e-05 deg
peri 131.3118166627539 6.8065e-05 deg
M 342.2504604362683 5.4975e-05 deg
tp 2458686.969752571931
(2019-Jul-22.46975257)
0.00026752 TDB
period 1753.798221870643
4.80
3.1212e-05
8.545e-08
d
yr
n .205268767815271 3.6531e-09 deg/d
Q 3.024455866885588 3.5883e-08 au
  Orbit Determination Parameters
   # obs. used (total)      158  
   data-arc span      6935 days (18.99 yr)  
   first obs. used      2000-11-02  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56319  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 06:59:54  

Additional Information
 Earth MOID = 1.68347 au 
 Jupiter MOID = 2.27372 au 
 T_jup = 3.270 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO321576  

295381 (2008 HR68)          Discovered 2008-Apr-24 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 HR68 = 2005 XM117 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin