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 ]  
20608 Fredmerlin (1999 RH224)
Classification: Main-belt Asteroid          SPK-ID: 2020608
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07468127019796499 5.6163e-08  
a 2.191870253600938 1.9057e-08 AU
q 2.028178598952884 1.2717e-07 AU
i 8.636143611495816 7.7741e-06 deg
node 27.10285988097381 3.7353e-05 deg
peri 243.4547827348729 7.3874e-05 deg
M 317.2083340172259 6.8885e-05 deg
tp 2457141.389096871457
(2015-Apr-28.88909687)
0.00022735 JED
period 1185.279275972615
3.25
1.5458e-05
4.232e-08
d
yr
n .3037258874745716 3.9611e-09 deg/d
Q 2.355561908248991 2.048e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      736  
   data-arc span      9055 days (24.79 yr)  
   first obs. used      1989-08-02  
   last obs. used      2014-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54982  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 14:07:52  

Additional Information
 Earth MOID = 1.03096 AU 
 T_jup = 3.654 
[ 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 15.1 mag n/a MPO272738  

20608 Fredmerlin           Discovered 1999 Sept. 7 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Frédéric Merlin (b. 1981) is a planetary scientist at Paris Observatory. He studies transneptunian objects using spectroscopy and surface compositional modeling.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080718/MPCPages.arcLast Updated: 2008-07-18

[ show close-approach data ]
Alternate Designations
 1999 RH224 = 1998 FY80 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-20 22:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin