Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
31652 (1999 HS2)
Classification: Main-belt Asteroid          SPK-ID: 2031652
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1472058088052462 5.9152e-08  
a 2.439951273156761 1.4551e-08 AU
q 2.08077627254633 1.4644e-07 AU
i 2.215831167358298 6.1074e-06 deg
node 185.6346277361231 0.00015453 deg
peri 337.6746685029436 0.00015611 deg
M 58.66417247264649 2.04e-05 deg
tp 2456773.649048609987
(2014-Apr-26.14904861)
7.8585e-05 JED
period 1392.099113619704
3.81
1.2453e-05
3.409e-08
d
yr
n .2586022765749317 2.3133e-09 deg/d
Q 2.799126273767193 1.6693e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      832  
   data-arc span      7416 days (20.30 yr)  
   first obs. used      1995-03-04  
   last obs. used      2015-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55996  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:48:35  

Additional Information
 Earth MOID = 1.08958 AU 
 T_jup = 3.486 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7 mag n/a MPO279845  

31652 (1999 HS2)          Discovered 1999-Apr-21 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Aug-02 16:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin