Orbit Fit and Astrometric record for 02CX224

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: 02CX224   
# Created Fri Mar 29 01:10:46 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     29 observations of     29
# Arc:  21.10y
# First observation: 2001/10/21
#  Last observation: 2022/11/28
# Chi-squared of fit:    91.88 DOF:     52 RMS:  0.31
# Min/Max residuals:    -0.65    0.59
# Exact a, adot, b, bdot, g, gdot:
  1.351197E-05  1.744855E-02  2.905971E-06  5.126281E-03  2.090240E-02 -2.042657E-03
# Covariance matrix:
  1.3224E-13 -3.4775E-14  1.4638E-14 -9.6596E-15  6.0548E-14 -8.1076E-14
 -3.4775E-14  2.1716E-14 -8.8428E-15  6.4548E-15 -8.1796E-15  5.4612E-14
  1.4638E-14 -8.8428E-15  7.7324E-14 -7.4585E-15  9.3487E-15 -2.3450E-14
 -9.6596E-15  6.4548E-15 -7.4585E-15  2.9015E-15 -3.5793E-15  1.6975E-14
  6.0548E-14 -8.1796E-15  9.3487E-15 -3.5793E-15  1.5741E-13 -2.8227E-14
 -8.1076E-14  5.4612E-14 -2.3450E-14  1.6975E-14 -2.8227E-14  1.4353E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.947551   55.736273    0.465353    0.060124   -0.872838  2452203.811093
# Heliocentric elements and errors
Epoch:              2452204.5000  =  2001/10/22
Mean Anomaly:          255.66863 +/-     0.031
Argument of Peri:      131.72104 +/-     0.022
Long of Asc Node:       42.23901 +/-     0.000
Inclination:            16.82129 +/-     0.000
Eccentricity:         0.13136730 +/-    0.0000
Semi-Major Axis:     46.49899926 +/-    0.0034
Time of Perihelion: 2485768.6961 +/-      13.4
Perihelion:          40.39055147 +/-    0.0033
Aphelion:            52.60744705 +/-    0.0041
Period (y)              317.0835 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           27.74972508 +/-    0.0005
Ecliptic Y           39.91195808 +/-    0.0007
Ecliptic Z            3.29370684 +/-    0.0001
Ecliptic XDOT        -0.00207380 +/-    0.0000
Ecliptic YDOT         0.00102847 +/-    0.0000
Ecliptic ZDOT         0.00065165 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   48.72235683 +/-    0.0007
Geocenter to KBO     47.84149814 +/-    0.0009
# Hcoef:  6.04

The following table shows the complete astrometric record for 02CX224. 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 (02CX224) followed by the observatory code and reference code for the source of the astrometry.

2001 10  21.31035  03 29 33.58   +23 01 28.8   22.6R 02CX224   695  Cf0409      
2001 10  21.37238  03 29 33.33   +23 01 28.0         02CX224   695  Cf0409      
2002 02  06.14037  03 23 37.06   +22 42 02.4   22.4R 02CX224   695  Cf0409      
2002 02  07.11522  03 23 37.12   +22 42 00.4         02CX224   695  Cf0409      
2002 02  08.12003  03 23 37.29   +22 41 58.4         02CX224   695  Cf0409      
2002 08  04.21260  03 35 15.20   +23 29 06.2   23. R 02CX224   950  Ch4187      
2002 08  04.22758  03 35 15.25   +23 29 06.2         02CX224   950  Ch4187      
2002 08  05.19943  03 35 17.02   +23 29 19.5         02CX224   950  Ch4187      
2002 11  07.32780  03 32 16.97   +23 30 21.3   22.1R 02CX224   695  Cg7926      
2002 11  07.42347  03 32 16.53   +23 30 20.2         02CX224   695  Cg7926      
2002 11  07.43982  03 32 16.47   +23 30 19.9   22.5R 02CX224   568  Cl8371      
2002 11  07.48354  03 32 16.25   +23 30 19.3         02CX224   568  Cl8371      
2002 11  28.24670  03 30 39.99   +23 25 53.8   22.9R 02CX224   695  Cg7926      
2002 11  28.31000  03 30 39.68   +23 25 53.3   22.7R 02CX224   695  Cg7926      
2002 12  05.14203  03 30 09.00   +23 24 18.3   22.4R 02CX224   695  Cg9901      
2002 12  05.25335  03 30 08.48   +23 24 16.8         02CX224   695  Cg9901      
2002 12  06.10759  03 30 04.77   +23 24 05.5         02CX224   695  Cg9901      
2002 12  06.24231  03 30 04.14   +23 24 03.0         02CX224   695  Cg9901      
2003 10  24.39288  03 37 18.24   +24 04 08.7   22.2R 02CX224   695  Cj8745      
2003 10  24.48556  03 37 17.86   +24 04 08.0         02CX224   695  Cj8745      
2006 07  30.26605  03 50 53.21   +25 27 53.2   22.5R 02CX224   250  S~06AT      
2006 07  30.27045  03 50 53.23   +25 27 53.2         02CX224   250  S~06AT      
2006 07  30.27485  03 50 53.24   +25 27 53.3         02CX224   250  S~06AT      
2006 07  30.27924  03 50 53.25   +25 27 53.4         02CX224   250  S~06AT      
2017 12  20.31415  04 34 11.087  +30 44 34.60  22.6R 02CX224   G37  C~2Uv0      
2017 12  20.41775  04 34 10.578  +30 44 33.42        02CX224   G37  C~2Uv0      
2022 11  28.373980 05 01 06.134  +32 51 48.09  22.8G 02CX224   G37  C~66wH      
2022 11  28.425290 05 01 05.852  +32 51 48.12        02CX224   G37  C~66wH      
2022 11  28.475520 05 01 05.577  +32 51 47.63        02CX224   G37  C~66wH      

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    -0.12       0.00     0.18
     2   0.0002      0.00    -0.02       0.00    -0.08
     3   0.2952      0.00     0.25       0.00     0.13
     4   0.2979      0.00     0.19       0.00     0.14
     5   0.3006      0.00     0.44       0.00    -0.10
     6   0.7855      0.00    -0.65       0.00     0.51
     7   0.7855      0.00    -0.31       0.00     0.30
     8   0.7882      0.00    -0.34       0.00    -0.06
     9   1.0459      0.00     0.17       0.00    -0.20
    10   1.0462      0.00     0.24       0.00    -0.20
    11   1.0462      0.00     0.35       0.00    -0.36
    12   1.0463      0.00     0.11       0.00    -0.46
    13   1.1032      0.00    -0.12       0.00    -0.20
    14   1.1034      0.00    -0.36       0.00     0.17
    15   1.1221      0.00     0.07       0.00    -0.27
    16   1.1224      0.00    -0.26       0.00    -0.24
    17   1.1247      0.00     0.23       0.00     0.36
    18   1.1251      0.00    -0.25       0.00    -0.29
    19   2.0071      0.00    -0.45       0.00    -0.38
    20   2.0073      0.00    -0.27       0.00    -0.33
    21   4.7720      0.00     0.17       0.00     0.59
    22   4.7720      0.00     0.30       0.00     0.51
    23   4.7720      0.00     0.27       0.00     0.54
    24   4.7720      0.00     0.25       0.00     0.57
    25  16.1643      0.00    -0.55       0.00    -0.26
    26  16.1646      0.00    -0.44       0.00    -0.35
    27  21.1035      0.00     0.25       0.00     0.11
    28  21.1037      0.00     0.17       0.00     0.23
    29  21.1038      0.00     0.10       0.00    -0.16

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.

02CX224    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        46.505    46.505    46.505
ecceobj         0.128     0.128     0.128
incobj         16.799    16.799    16.799
qmin           39.245    39.266    39.279
qmax           53.464    53.466    53.493
amean          46.204    46.203    46.204
amin           45.828    45.826    45.826
amax           46.623    46.630    46.631
emean           0.133     0.133     0.133
emin            0.121     0.121     0.121
emax            0.147     0.147     0.147
imean          16.020    16.020    16.020
imin           15.637    15.638    15.641
imax           16.381    16.387    16.381
excite_mean     0.307     0.307     0.307
fracstop        1.000     1.000     1.000
cjmean          3.011     3.011     3.011

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       191.6     191.8     191.7
kozaiamp        180.0     180.0     179.9