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257248 Chouchiehlun (2009 FA19)
Classification: Main-belt Asteroid          SPK-ID: 2257248
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1535014868600187 6.5274e-08  
a 2.364183725568331 2.6079e-08 au
q 2.001278008483334 1.4929e-07 au
i 1.600190987211551 8.6905e-06 deg
node 24.03429526874032 0.00027045 deg
peri 215.2959909786298 0.00027255 deg
M 352.0652327115891 3.9513e-05 deg
tp 2459029.765230933555
(2020-Jun-29.26523093)
0.00014593 TDB
period 1327.762082130289
3.64
2.197e-05
6.015e-08
d
yr
n .2711329121723438 4.4863e-09 deg/d
Q 2.727089442653328 3.0082e-08 au
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      5103 days (13.97 yr)  
   first obs. used      2005-01-16  
   last obs. used      2019-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66796  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:03:38  

Additional Information
 Earth MOID = .989275 au 
 Jupiter MOID = 2.27984 au 
 T_jup = 3.533 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456909.5 (2014-Sep-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1540842573606047 6.5132e-08  
q 1.999620849947609 1.4898e-07 au
tp 2456373.802285952858
(2013-Mar-22.30228595)
0.00013276 TDB
node 24.05125814170286 0.00027038 deg
peri 215.2291011812077 0.00027247 deg
i 1.600954603275023 8.6902e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      5103 days (13.97 yr)  
   first obs. used      2005-01-16  
   last obs. used      2019-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66796  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:03:38  

Additional Information
 Jupiter MOID = 2.27984 au 
 T_jup = 3.533 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.242198360348468E-15 -9.605078711877084E-15 -2.297811626666591E-12 -4.250331431747068E-14 -4.882816887006398E-13 1.474998722932443E-15
q -9.605078711877084E-15 2.219516112208571E-14 5.827532634936842E-12 9.269660891440012E-14 1.312781389825913E-12 -2.95946721860501E-15
tp -2.297811626666591E-12 5.827532634936842E-12 1.7624621580061E-8 3.307284937185462E-11 4.515789391835806E-9 1.434253169949832E-12
node -4.250331431747068E-14 9.269660891440012E-14 3.307284937185462E-11 7.310405492307266E-8 -7.306720474982128E-8 -7.805942224322896E-10
peri -4.882816887006398E-13 1.312781389825913E-12 4.515789391835806E-9 -7.306720474982128E-8 7.423928339107452E-8 7.806989531678239E-10
i 1.474998722932443E-15 -2.95946721860501E-15 1.434253169949832E-12 -7.805942224322896E-10 7.806989531678239E-10 7.551919633736175E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO418369  

257248 Chouchiehlun           Discovered 2009 Mar. 20 by LUSS at Lulin.
Chouchiehlun (b. 1979) is one of the most famous musicians in Taiwan, best known for "Ting Ma Ma De Hua" ("Listen to Mother's Words").
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110615/MPCPages.arcLast Updated: 2013-03-28

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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