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20394 Fatou (1998 MQ17)
Classification: Main-belt Asteroid          SPK-ID: 2020394
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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1383452636250367 9.4378e-08  
a 3.133168152454239 4.8174e-08 AU
q 2.699709178421389 2.8162e-07 AU
i 6.675913894457757 7.5469e-06 deg
node 281.9561286531901 7.6582e-05 deg
peri 106.3803495318689 8.316e-05 deg
M 272.627165397693 3.4524e-05 deg
tp 2457492.140788865999
(2016-Apr-13.64078887)
0.00019961 JED
period 2025.694654378152
5.55
4.6719e-05
1.279e-07
d
yr
n .177716813944258 4.0987e-09 deg/d
Q 3.56662712648709 5.4839e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      572  
   data-arc span      11181 days (30.61 yr)  
   first obs. used      1982-09-20  
   last obs. used      2013-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60195  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:41:58  

Additional Information
 Earth MOID = 1.71438 AU 
 T_jup = 3.187 
[ 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 13.7 mag n/a MPO263529  

20394 Fatou           Discovered 1998 June 28 by P. G. Comba at Prescott.
Pierre Joseph Louis Fatou (1878-1929) was employed at the observatory of Paris all his working life, but his main interest was mathematics. He proved a fundamental theorem regarding Lebesgue integrals of sequences of functions.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1998 MQ17 = 1982 SC9 = 2000 AK52 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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