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 ]  
233641 (2008 HN12)
Classification: Main-belt Asteroid          SPK-ID: 2233641
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2113058240428518 5.5999e-08  
a 2.62984121105295 2.7774e-08 au
q 2.074140446849555 1.5131e-07 au
i 11.9133948071039 5.9836e-06 deg
node 53.17916369203108 2.9435e-05 deg
peri 283.2097619705581 3.2254e-05 deg
M 127.4550651372409 1.4996e-05 deg
tp 2458048.997715906563
(2017-Oct-22.49771591)
6.3939e-05 TDB
period 1557.731911712199
4.26
2.4677e-05
6.756e-08
d
yr
n .2311052353060559 3.661e-09 deg/d
Q 3.185541975256345 3.3642e-08 au
  Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      8666 days (23.73 yr)  
   first obs. used      1995-04-25  
   last obs. used      2019-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67881  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:34:21  

Additional Information
 Earth MOID = 1.10347 au 
 Jupiter MOID = 2.33541 au 
 T_jup = 3.338 
[ 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 15.8   n/a MPO422905  
diameter diameter 3.659 km 0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

233641 (2008 HN12)          Discovered 2008-Apr-24 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Alternate Designations
 2008 HN12 = 2005 XC20 
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 04:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin