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20017 Alixcatherine (1991 TF14)
Classification: Main-belt Asteroid          SPK-ID: 2020017
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .118135147276161 6.9584e-08  
a 2.549227413247594 2.0682e-08 AU
q 2.248074057343162 1.7196e-07 AU
i 5.506062583717364 6.432e-06 deg
node 25.57734011503212 6.8896e-05 deg
peri 46.89206946037714 7.3624e-05 deg
M 146.9139557715041 2.9019e-05 deg
tp 2456193.802998147180
(2012-Sep-23.30299815)
0.00011769 JED
period 1486.658769209854
4.07
1.8092e-05
4.953e-08
d
yr
n .2421537527346216 2.9469e-09 deg/d
Q 2.850380769152025 2.3125e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      749  
   data-arc span      13595 days (37.22 yr)  
   first obs. used      1977-03-15  
   last obs. used      2014-06-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55454  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 14:06:46  

Additional Information
 Earth MOID = 1.26569 AU 
 T_jup = 3.425 
[ 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 14.3 mag n/a MPO263526  

20017 Alixcatherine           Discovered 1991 Oct. 2 by C. P. de Saint-Aignan at Palomar.
Alix Catherine de Saint-Aignan (b. 2002) is the eldest daughter of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20091202/MPCPages.arcLast Updated: 2010-04-12

[ show close-approach data ]
Alternate Designations
 1991 TF14 = 1977 EF4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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