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 ]  
154378 Hennessy (2002 XR115)
Classification: Main-belt Asteroid          SPK-ID: 2154378
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .180189913020187 5.4091e-08  
a 2.436516479643362 2.1717e-08 AU
q 1.997480787104173 1.3839e-07 AU
i .8720053861024145 9.2971e-06 deg
node 357.4839429591088 0.00034395 deg
peri 299.4567760517603 0.0003451 deg
M 260.8493113652647 2.5569e-05 deg
tp 2457383.100638677843
(2015-Dec-26.60063868)
9.8489e-05 JED
period 1389.16059808152
3.80
1.8573e-05
5.085e-08
d
yr
n .2591493024616252 3.4647e-09 deg/d
Q 2.875552172182552 2.563e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      7436 days (20.36 yr)  
   first obs. used      1995-01-07  
   last obs. used      2015-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55268  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 21:41:10  

Additional Information
 Earth MOID = .98296 AU 
 T_jup = 3.482 
[ 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 16.4 mag n/a MPO280807  

154378 Hennessy           Discovered 2002 Dec. 14 by the Sloan Digital Sky Survey at Apache Point.
Gregory Hennessy (b. 1963) is an American astronomer and a contributor to the Sloan Digital Sky Survey's astrometric pipeline.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120406/MPCPages.arcLast Updated: 2012-04-09

[ show close-approach data ]
Alternate Designations
 2002 XR115 = 1997 WY10 = 2000 KW28 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Jul-31 05:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin