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 ]  
46240 (2001 HT11)
Classification: Main-belt Asteroid          SPK-ID: 2046240
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 .01062192513460929 4.3099e-08  
a 2.784417633419495 1.6254e-08 au
q 2.754841757773827 1.2234e-07 au
i 6.378853080105229 4.9234e-06 deg
node 38.37882643978896 3.6743e-05 deg
peri 307.278633660917 0.00021027 deg
M 181.1341409263139 0.00020774 deg
tp 2459443.689018992938
(2021-Aug-17.18901899)
0.00097991 TDB
period 1697.070913417901
4.65
1.486e-05
4.068e-08
d
yr
n .2121302045504746 1.8575e-09 deg/d
Q 2.813993509065162 1.6427e-08 au
  Orbit Determination Parameters
   # obs. used (total)      871  
   data-arc span      10285 days (28.16 yr)  
   first obs. used      1991-02-08  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5839  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:36:45  

Additional Information
 Earth MOID = 1.75276 au 
 Jupiter MOID = 2.19816 au 
 T_jup = 3.323 
[ 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 14.8   n/a MPO436105  
diameter diameter 3.321 km 0.723 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.211   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46240 (2001 HT11)          Discovered 2001-Apr-18 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ 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
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin