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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07487350350337156 5.0762e-08  
a 2.192211124767944 1.4681e-08 au
q 2.028072597437501 1.1006e-07 au
i 8.63607327744044 5.7354e-06 deg
node 27.09673906561255 3.6764e-05 deg
peri 243.4243019688394 5.8825e-05 deg
M 78.70893434188136 4.3786e-05 deg
tp 2457141.294910592077
(2015-Apr-28.79491059)
0.00014514 JED
period 1185.555781781175
3.25
1.1909e-05
3.261e-08
d
yr
n .3036550498358983 3.0503e-09 deg/d
Q 2.356349652098387 1.578e-08 au
  Orbit Determination Parameters
   # obs. used (total)      805  
   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      .56329  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 16:34:29  

Additional Information
 Earth MOID = 1.02807 au 
 Jupiter MOID = 2.69344 au 
 T_jup = 3.653 
[ 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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