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
JPL Small-Body Database Browser
Search: [ help ]  
351440 (2005 HX2)
Classification: Main-belt Asteroid          SPK-ID: 2351440
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .139085661502032 8.5899e-08  
a 2.528548215704791 2.1345e-08 au
q 2.176863414483708 2.2298e-07 au
i 8.07767821400871 8.8165e-06 deg
node 221.9378382117402 3.5616e-05 deg
peri 337.3158069695718 4.106e-05 deg
M 288.1716997286372 1.9762e-05 deg
tp 2459293.520749396461
(2021-Mar-20.02074940)
8.2084e-05 TDB
period 1468.605958712664
4.02
1.8596e-05
5.091e-08
d
yr
n .2451304230820126 3.1039e-09 deg/d
Q 2.880233016925875 2.4314e-08 au
  Orbit Determination Parameters
   # obs. used (total)      156  
   data-arc span      6822 days (18.68 yr)  
   first obs. used      2001-04-24  
   last obs. used      2019-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60113  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:43:45  

Additional Information
 Earth MOID = 1.17621 au 
 Jupiter MOID = 2.09484 au 
 T_jup = 3.425 
[ 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 17.1   n/a MPO455543  

351440 (2005 HX2)          Discovered 2005-Apr-17 by Spacewatch at Kitt Peak
Reference: 20130127/Numbers.arcLast Updated: 2013-01-31
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-28 23:41 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin