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20246 Frappa (1998 ER6)
Classification: Main-belt Asteroid          SPK-ID: 2020246
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ 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 .08262755413626358 8.931e-08  
a 2.295786199332176 1.444e-08 AU
q 2.10609100086157 2.0277e-07 AU
i 4.07859465527318 8.8758e-06 deg
node 336.7305066343703 7.4049e-05 deg
peri 201.9692841470349 7.9527e-05 deg
M 285.1539352595593 3.2025e-05 deg
tp 2457264.656960241132
(2015-Aug-30.15696024)
0.00011373 JED
period 1270.56119806156
3.48
1.1987e-05
3.282e-08
d
yr
n .2833393625975957 2.6732e-09 deg/d
Q 2.485481397802782 1.5633e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      752  
   data-arc span      22440 days (61.44 yr)  
   first obs. used      1953-05-11  
   last obs. used      2014-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55534  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:35:58  

Additional Information
 Earth MOID = 1.11145 AU 
 T_jup = 3.587 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9 mag n/a MPO267783  

20246 Frappa           Discovered 1998 Mar. 1 by the OCA-DLR Asteroid Survey at Caussols.
Eric Frappa (b. 1969) is a specialist in the occultation of stars by minor planets. He is responsible for the Euraster web site, which collects occultation data for Europe. He spends several observing missions every year at the Pic du Midi. He works at the planetarium in Saint-Etienne, where he creates digital planetarium shows.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22

Alternate Designations
 1998 ER6 = 1977 DN = 1991 EJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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