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 ]  
249238 (2008 HO22)
Classification: Main-belt Asteroid          SPK-ID: 2249238
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06193478110731984 6.4345e-08  
a 3.085037077290817 3.8486e-08 au
q 2.893965981200844 2.0313e-07 au
i 16.52010002332899 6.4989e-06 deg
node 187.7960246199168 2.1682e-05 deg
peri 27.96912124083188 4.9135e-05 deg
M 28.53001890496276 4.5463e-05 deg
tp 2458443.648539312307
(2018-Nov-21.14853931)
0.00024928 TDB
period 1979.196930631801
5.42
3.7036e-05
1.014e-07
d
yr
n .1818919554837227 3.4037e-09 deg/d
Q 3.276108173380789 4.087e-08 au
  Orbit Determination Parameters
   # obs. used (total)      208  
   data-arc span      6314 days (17.29 yr)  
   first obs. used      2002-03-21  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54706  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:35  

Additional Information
 Earth MOID = 1.89904 au 
 Jupiter MOID = 1.69419 au 
 T_jup = 3.160 
[ 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 MPO476002  
diameter diameter 4.901 km 1.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.032   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

249238 (2008 HO22)          Discovered 2008-Apr-26 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ 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 2020-Jan-27 21:41 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin