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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07497111911116736 5.0421e-08  
a 2.192026369002478 1.4713e-08 au
q 2.027687698997173 1.0928e-07 au
i 8.636393006112657 5.7074e-06 deg
node 27.09662264827005 3.6641e-05 deg
peri 243.3777582105233 5.8713e-05 deg
M 139.4829297471497 4.3486e-05 deg
tp 2457141.211418685096
(2015-Apr-28.71141869)
0.00014485 JED
period 1185.405910050037
3.25
1.1934e-05
3.267e-08
d
yr
n .3036934411646422 3.0575e-09 deg/d
Q 2.356365039007782 1.5816e-08 au
  Orbit Determination Parameters
   # obs. used (total)      811  
   data-arc span      9592 days (26.26 yr)  
   first obs. used      1989-08-02  
   last obs. used      2015-11-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56157  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 19:29:29  

Additional Information
 Earth MOID = 1.02882 au 
 Jupiter MOID = 2.6942 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 15.2 mag n/a MPO350965  

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 ]
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