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 ]  
146291 (2001 HT12)
Classification: Main-belt Asteroid          SPK-ID: 2146291
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1466702506240869 4.7014e-08  
a 2.22841844738021 1.0556e-08 au
q 1.901575755207616 1.0623e-07 au
i 1.990799737077072 4.3752e-06 deg
node 115.137729838203 0.00014707 deg
peri 62.55228522925044 0.0001482 deg
M 178.5261188613345 2.2285e-05 deg
tp 2457997.950393499939
(2017-Sep-01.45039350)		 7.2175e-05 TDB
period 1215.048306228555
3.33		 8.6337e-06
2.364e-08		 d
yr
n .2962845165534371 2.1053e-09 deg/d
Q 2.555261139552804 1.2105e-08 au
   Orbit Determination Parameters
   # obs. used (total)      488  
   data-arc span      6780 days (18.56 yr)  
   first obs. used      2001-04-16  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54459  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 12:58:06  

Additional Information
 Earth MOID = .906915 au 
 Jupiter MOID = 2.40619 au 
 T_jup = 3.629 
[ 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 16.4   n/a MPO251282  

146291 (2001 HT12)          Discovered 2001-Apr-18 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-14 16:07 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin