Orbit Fit and Astrometric record for 02FY36

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.

# Object: 02FY36    
# Created Sun Dec  5 02:09:16 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     28 observations of     28
# Arc:  12.10y
# First observation: 2002/03/18
#  Last observation: 2014/04/25
# Chi-squared of fit:    26.85 DOF:     50 RMS:  0.17
# Min/Max residuals:    -0.46    0.38
# Exact a, adot, b, bdot, g, gdot:
  2.029775E-05  5.371265E-02 -1.005357E-06 -4.907498E-03  4.066112E-02 -1.273751E-02
# Covariance matrix:
  5.7513E-13  2.3126E-11  7.0203E-14 -2.1832E-12  5.7222E-12  2.5386E-11
  2.3126E-11  1.8915E-09  5.8182E-12 -1.7852E-10  4.2859E-10  2.0768E-09
  7.0203E-14  5.8182E-12  2.0429E-13 -5.6457E-13  1.3139E-12  6.3881E-12
 -2.1832E-12 -1.7852E-10 -5.6457E-13  1.6850E-11 -4.0445E-11 -1.9600E-10
  5.7222E-12  4.2859E-10  1.3139E-12 -4.0445E-11  9.9281E-11  4.7046E-10
  2.5386E-11  2.0768E-09  6.3881E-12 -1.9600E-10  4.7046E-10  2.2801E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.372621  166.478435   -0.195694   -0.023480   -0.976332  2452351.799233
# Heliocentric elements and errors
Epoch:              2452352.5000  =  2002/03/19
Mean Anomaly:          325.76010 +/-    11.873
Argument of Peri:      254.99052 +/-     0.018
Long of Asc Node:      332.64281 +/-     0.001
Inclination:             5.34381 +/-     0.000
Eccentricity:         0.29702996 +/-    0.0011
Semi-Major Axis:     32.12611505 +/-    0.0026
Time of Perihelion: 2458678.3046 +/-    2193.6
Perihelion:          22.58369633 +/-    0.0362
Aphelion:            41.66853377 +/-    0.0364
Period (y)              182.0940 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -24.89949685 +/-    0.0078
Ecliptic Y            5.79171874 +/-    0.0019
Ecliptic Z           -0.58912964 +/-    0.0002
Ecliptic XDOT        -0.00001269 +/-    0.0000
Ecliptic YDOT        -0.00371987 +/-    0.0000
Ecliptic ZDOT        -0.00030958 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   25.57111594 +/-    0.0076
Geocenter to KBO     24.59367670 +/-    0.0080
# Hcoef:  8.55

The following table shows the complete astrometric record for 02FY36. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (02FY36) followed by the observatory code and reference code for the source of the astrometry.

2002 03  18.29849  11 08 05.64   +04 04 17.2   22.2R 02FY36    695  Cf5084      
2002 03  20.23512  11 07 52.17   +04 05 37.2         02FY36    695  Cf5084      
2002 03  20.36012  11 07 51.29   +04 05 42.4         02FY36    695  Cf5084      
2002 04  07.10670  11 05 57.29   +04 17 10.9   22.3R 02FY36    807  Cf5084      
2002 04  08.00634  11 05 52.12   +04 17 42.0         02FY36    807  Cf5084      
2002 04  08.07903  11 05 51.67   +04 17 44.8         02FY36    807  Cf5084      
2002 04  10.33771  11 05 38.96   +04 19 02.3   22.1R 02FY36    568  Cf5084      
2002 04  10.40652  11 05 38.57   +04 19 04.6         02FY36    568  Cf5084      
2002 05  08.29976  11 03 46.47   +04 30 39.0   22.0R 02FY36    568  Cf7367      
2002 05  08.36700  11 03 46.31   +04 30 40.1         02FY36    568  Cf7367      
2014 03  28.22845  13 38 55.47   -15 10 46.3         02FY36    W84  C~52Ef      
2014 03  28.29258  13 38 54.99   -15 10 44.1   22.9V 02FY36    W84  C~52Eg      
2014 03  28.35708  13 38 54.51   -15 10 41.8         02FY36    W84  C~52Eg      
2014 04  22.983287 13 35 33.82   -14 53 37.7         02FY36    W84  C~52Eg      
2014 04  22.986528 13 35 33.79   -14 53 37.5         02FY36    W84  C~52Eg      
2014 04  22.989745 13 35 33.77   -14 53 37.2         02FY36    W84  C~52Eg      
2014 04  22.992986 13 35 33.74   -14 53 37.2         02FY36    W84  C~52Eg      
2014 04  22.996192 13 35 33.73   -14 53 36.9         02FY36    W84  C~52Eg      
2014 04  24.003634 13 35 25.75   -14 52 53.1         02FY36    W84  C~52Eg      
2014 04  24.006782 13 35 25.73   -14 52 53.0         02FY36    W84  C~52Eg      
2014 04  24.009942 13 35 25.70   -14 52 52.8         02FY36    W84  C~52Eg      
2014 04  24.013090 13 35 25.68   -14 52 52.8         02FY36    W84  C~52Eg      
2014 04  24.016250 13 35 25.65   -14 52 52.5         02FY36    W84  C~52Eg      
2014 04  25.002095 13 35 17.88   -14 52 09.3         02FY36    W84  C~52Eg      
2014 04  25.005347 13 35 17.85   -14 52 09.1         02FY36    W84  C~52Eg      
2014 04  25.008542 13 35 17.83   -14 52 09.0         02FY36    W84  C~52Eg      
2014 04  25.011701 13 35 17.81   -14 52 08.8         02FY36    W84  C~52Eg      
2014 04  25.014850 13 35 17.78   -14 52 08.7         02FY36    W84  C~52Eg      

The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.

     1   0.0000      0.00     0.04       0.00    -0.22
     2   0.0053      0.00    -0.35       0.00    -0.46
     3   0.0056      0.00    -0.37       0.00    -0.41
     4   0.0542      0.00     0.03       0.00     0.38
     5   0.0567      0.00     0.29       0.00    -0.16
     6   0.0569      0.00    -0.08       0.00     0.10
     7   0.0631      0.00     0.29       0.00     0.27
     8   0.0633      0.00     0.29       0.00     0.24
     9   0.1396      0.00    -0.12       0.00     0.09
    10   0.1398      0.00    -0.06       0.00     0.20
    11  12.0272      0.00    -0.09       0.00    -0.04
    12  12.0274      0.00    -0.04       0.00    -0.04
    13  12.0275      0.00     0.03       0.00     0.04
    14  12.0977      0.00     0.06       0.00    -0.00
    15  12.0977      0.00     0.00       0.00     0.06
    16  12.0977      0.00     0.09       0.00     0.22
    17  12.0977      0.00     0.02       0.00     0.08
    18  12.0977      0.00     0.26       0.00     0.24
    19  12.1005      0.00    -0.02       0.00    -0.06
    20  12.1005      0.00     0.06       0.00    -0.09
    21  12.1005      0.00    -0.02       0.00    -0.03
    22  12.1005      0.00     0.06       0.00    -0.17
    23  12.1005      0.00    -0.01       0.00    -0.01
    24  12.1032      0.00    -0.10       0.00    -0.09
    25  12.1032      0.00    -0.16       0.00    -0.03
    26  12.1032      0.00    -0.08       0.00    -0.07
    27  12.1033      0.00    -0.00       0.00    -0.00
    28  12.1033      0.00    -0.08       0.00    -0.04

The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.

02FY36    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        31.902    31.902    31.902
ecceobj         0.294     0.294     0.294
incobj          5.359     5.359     5.359
qmin           22.077    22.384    21.585
qmax           42.346    41.960    42.905
amean          31.928    32.169    31.995
amin           31.367    31.902    31.326
amax           32.607    32.402    32.952
emean           0.293     0.296     0.304
emin            0.286     0.289     0.289
emax            0.299     0.300     0.317
imean           7.411     7.151     5.284
imin            6.570     6.570     3.707
imax            7.944     7.328     7.213
excite_mean     0.321     0.321     0.318
fracstop        0.004     0.002     0.017
cjmean          2.894     2.893     2.897

libcent 0      -180.0    -180.0    -180.0
libamp  0      -180.0    -180.0    -180.0
libcent 1      -180.0    -180.0    -180.0
libamp  1      -180.0    -180.0    -180.0
libcent 2      -180.0    -180.0    -180.0
libamp  2      -180.0    -180.0    -180.0
libcent 3      -180.0    -180.0    -180.0
libamp  3      -180.0    -180.0    -180.0
libcent 4      -180.0    -180.0    -180.0
libamp  4      -180.0    -180.0    -180.0

kozaimean       263.2     260.1     163.4
kozaiamp          7.0       5.0     178.8