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 ]  
12117 Meagmessina (1999 JT60)
Classification: Main-belt Asteroid          SPK-ID: 2012117
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1760280985622713 8.9671e-08  
a 2.465844380666622 1.9492e-08 AU
q 2.031786482987415 2.2166e-07 AU
i 3.067519683062457 8.532e-06 deg
node 158.2723401960484 0.00010139 deg
peri 19.08265161221943 0.00010361 deg
M 54.50963181651504 1.8702e-05 deg
tp 2456786.350200588652
(2014-May-08.85020059)
7.4042e-05 JED
period 1414.317529195416
3.87
1.677e-05
4.591e-08
d
yr
n .2545397285748122 3.0181e-09 deg/d
Q 2.899902278345829 2.2923e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      767  
   data-arc span      9972 days (27.30 yr)  
   first obs. used      1987-03-03  
   last obs. used      2014-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54663  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:22:07  

Additional Information
 Earth MOID = 1.03727 AU 
 T_jup = 3.464 
[ 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 14.5 mag n/a MPO299050  

12117 Meagmessina           Discovered 1999 May 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Meagan Elizabeth Messina (b. 1985) is a finalist in the 2002 Intel International Science and Engineering Fair for her earth and space sciences project. She attends the Saint Joseph's Academy, Baton Rouge, Louisiana, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1999 JT60 = 1987 ER = 1991 HV1 = 1997 XQ12 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-25 11:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin