Orbit Fit and Astrometric record for 02TH301

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: 02TH301   
# Created Sun Apr 21 01:08:06 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   99 observations of   99
# Arc:  15.19y
# First observation: 2002/10/06
#  Last observation: 2017/12/16
# Chi-squared of fit:   103.50 DOF:  192 RMS:  0.18
# Min/Max residuals:    -0.59    0.72
# Exact a, adot, b, bdot, g, gdot:
  1.552702E-05  2.699020E-02  1.282632E-06  3.329360E-04  2.649812E-02  1.122013E-03
# Covariance matrix:
  2.2586E-14 -2.7875E-15  4.5289E-19 -1.4732E-17  6.7077E-17 -3.1262E-15
 -2.7875E-15  7.8533E-14 -2.1200E-17  9.7641E-16  6.1268E-14  2.1301E-13
  4.5289E-19 -2.1200E-17  2.2564E-14 -1.6939E-15  2.7623E-18 -6.0814E-17
 -1.4732E-17  9.7641E-16 -1.6939E-15  3.7896E-16  6.3286E-16  2.6816E-15
  6.7077E-17  6.1268E-14  2.7623E-18  6.3286E-16  1.6272E-13  1.4895E-13
 -3.1262E-15  2.1301E-13 -6.0814E-17  2.6816E-15  1.4895E-13  5.8329E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.411109   30.668255    0.308580   -0.023434   -0.950245  2452553.943653
# Heliocentric elements and errors
Epoch:              2452554.5000  =  2002/10/07
Mean Anomaly:           56.02845 +/-     0.052
Argument of Peri:      237.19384 +/-     0.057
Long of Asc Node:       93.44460 +/-     0.001
Inclination:             1.54145 +/-     0.000
Eccentricity:         0.03639091 +/-    0.0000
Semi-Major Axis:     39.45729370 +/-    0.0021
Time of Perihelion: 2438465.0046 +/-      13.0
Perihelion:          38.02140675 +/-    0.0024
Aphelion:            40.89318065 +/-    0.0025
Period (y)              247.8558 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.42434361 +/-    0.0005
Ecliptic Y           19.46833025 +/-    0.0003
Ecliptic Z           -0.92929666 +/-    0.0000
Ecliptic XDOT        -0.00132957 +/-    0.0000
Ecliptic YDOT         0.00245509 +/-    0.0000
Ecliptic ZDOT         0.00003174 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.69192132 +/-    0.0005
Geocenter to KBO     37.73853839 +/-    0.0006
# Hcoef:  9.40

The following table shows the complete astrometric record for 02TH301. 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 (02TH301) followed by the observatory code and reference code for the source of the astrometry.

2002 10  06.44291  01 56 12.16   +10 23 00.9         02TH301   568  Cg6277      
2002 10  06.44796  01 56 12.12   +10 23 01.0         02TH301   568  Cg6277      
2002 10  06.45279  01 56 12.10   +10 23 00.8   26.2R 02TH301   568  Cg6277      
2002 10  06.45762  01 56 12.07   +10 23 00.6         02TH301   568  Cg6277      
2002 10  06.46244  01 56 12.04   +10 23 00.3         02TH301   568  Cg6277      
2002 10  06.46727  01 56 12.03   +10 23 00.1         02TH301   568  Cg6277      
2002 10  06.47210  01 56 12.02   +10 23 00.0         02TH301   568  Cg6277      
2002 10  06.48179  01 56 11.97   +10 23 00.0         02TH301   568  Cg6277      
2002 10  06.48662  01 56 11.94   +10 22 59.9         02TH301   568  Cg6277      
2002 10  06.51208  01 56 11.81   +10 22 59.2         02TH301   568  Cg6277      
2002 10  06.51691  01 56 11.78   +10 22 58.9         02TH301   568  Cg6277      
2002 10  06.52261  01 56 11.76   +10 22 58.7         02TH301   568  Cg6277      
2002 10  06.52743  01 56 11.74   +10 22 58.6         02TH301   568  Cg6277      
2002 10  06.53226  01 56 11.72   +10 22 58.9         02TH301   568  Cg6277      
2002 10  06.53708  01 56 11.70   +10 22 58.5         02TH301   568  Cg6277      
2002 10  06.54193  01 56 11.66   +10 22 58.6         02TH301   568  Cg6277      
2002 10  06.54678  01 56 11.64   +10 22 58.4         02TH301   568  Cg6277      
2002 10  06.55161  01 56 11.62   +10 22 58.2         02TH301   568  Cg6277      
2002 10  06.55644  01 56 11.60   +10 22 58.0         02TH301   568  Cg6277      
2002 10  06.56228  01 56 11.55   +10 22 57.7         02TH301   568  Cg6277      
2002 10  06.56757  01 56 11.55   +10 22 57.5         02TH301   568  Cg6277      
2002 10  06.57240  01 56 11.53   +10 22 57.4         02TH301   568  Cg6277      
2002 10  06.57722  01 56 11.51   +10 22 57.6         02TH301   568  Cg6277      
2002 10  06.58205  01 56 11.48   +10 22 57.6         02TH301   568  Cg6277      
2002 10  07.33086  01 56 07.94   +10 22 38.2         02TH301   568  Cg6277      
2002 10  07.33568  01 56 07.92   +10 22 37.2         02TH301   568  Cg6277      
2002 10  07.34051  01 56 07.90   +10 22 37.5         02TH301   568  Cg6277      
2002 10  07.34534  01 56 07.87   +10 22 37.2         02TH301   568  Cg6277      
2002 10  07.35662  01 56 07.79   +10 22 36.9         02TH301   568  Cg6277      
2002 10  07.36144  01 56 07.77   +10 22 37.0         02TH301   568  Cg6277      
2002 10  07.36627  01 56 07.73   +10 22 36.9         02TH301   568  Cg6277      
2002 10  07.37109  01 56 07.72   +10 22 36.4         02TH301   568  Cg6277      
2002 10  07.37592  01 56 07.70   +10 22 36.1         02TH301   568  Cg6277      
2002 10  07.38074  01 56 07.69   +10 22 36.0         02TH301   568  Cg6277      
2002 10  07.38557  01 56 07.68   +10 22 36.0         02TH301   568  Cg6277      
2002 10  07.39039  01 56 07.64   +10 22 35.9         02TH301   568  Cg6277      
2002 10  07.39522  01 56 07.61   +10 22 35.8         02TH301   568  Cg6277      
2002 10  07.40007  01 56 07.59   +10 22 35.8         02TH301   568  Cg6277      
2002 10  07.40522  01 56 07.55   +10 22 35.9         02TH301   568  Cg6277      
2002 10  07.41004  01 56 07.53   +10 22 35.6         02TH301   568  Cg6277      
2002 10  07.41487  01 56 07.51   +10 22 35.5         02TH301   568  Cg6277      
2002 10  07.41969  01 56 07.47   +10 22 35.0         02TH301   568  Cg6277      
2002 10  07.42451  01 56 07.47   +10 22 35.0         02TH301   568  Cg6277      
2002 10  07.42934  01 56 07.45   +10 22 34.7         02TH301   568  Cg6277      
2002 10  07.43417  01 56 07.44   +10 22 34.6         02TH301   568  Cg6277      
2002 10  07.43899  01 56 07.40   +10 22 34.2         02TH301   568  Cg6277      
2002 10  07.44865  01 56 07.35   +10 22 34.6         02TH301   568  Cg6277      
2002 10  07.46854  01 56 07.28   +10 22 33.8         02TH301   568  Cg6277      
2002 10  07.47336  01 56 07.23   +10 22 33.8         02TH301   568  Cg6277      
2002 10  07.47819  01 56 07.21   +10 22 33.4         02TH301   568  Cg6277      
2002 10  07.48301  01 56 07.18   +10 22 33.1         02TH301   568  Cg6277      
2002 10  07.48784  01 56 07.17   +10 22 33.1         02TH301   568  Cg6277      
2002 10  07.49266  01 56 07.16   +10 22 33.2         02TH301   568  Cg6277      
2002 10  07.49749  01 56 07.13   +10 22 33.2         02TH301   568  Cg6277      
2002 10  07.50232  01 56 07.10   +10 22 32.9         02TH301   568  Cg6277      
2002 10  07.50714  01 56 07.08   +10 22 33.0         02TH301   568  Cg6277      
2002 10  07.51197  01 56 07.05   +10 22 32.7         02TH301   568  Cg6277      
2002 10  07.51720  01 56 07.02   +10 22 32.5         02TH301   568  Cg6277      
2002 10  07.52202  01 56 07.00   +10 22 32.5         02TH301   568  Cg6277      
2002 10  07.59288  01 56 06.64   +10 22 30.6         02TH301   568  Cg6277      
2002 10  07.59770  01 56 06.63   +10 22 30.4         02TH301   568  Cg6277      
2002 10  07.60253  01 56 06.62   +10 22 30.1         02TH301   568  Cg6277      
2002 10  07.60735  01 56 06.59   +10 22 30.1         02TH301   568  Cg6277      
2002 10  07.61218  01 56 06.58   +10 22 29.9         02TH301   568  Cg6277      
2002 10  07.61700  01 56 06.54   +10 22 29.9         02TH301   568  Cg6277      
2002 10  07.62183  01 56 06.53   +10 22 30.0         02TH301   568  Cg6277      
2014 11  17.27644  03 03 58.865  +16 09 12.95  24.9r 02TH301   568  C~2lRa      
2014 11  17.38513  03 03 58.275  +16 09 10.38  25.1r 02TH301   568  C~2lRa      
2014 11  17.49897  03 03 57.673  +16 09 08.00  25.0r 02TH301   568  C~2lRa      
2014 11  19.28749  03 03 48.329  +16 08 30.33  25.2r 02TH301   568  C~2lRa      
2014 11  23.39103  03 03 27.106  +16 07 04.95  25.4r 02TH301   568  C~2lRa      
2015 09  06.62350  03 14 49.075  +16 55 18.50  25.1w 02TH301   568  C~2lRa      
2015 09  12.51312  03 14 39.024  +16 54 31.49  25.7w 02TH301   568  C~2lRa      
2015 10  07.43992  03 13 22.571  +16 49 05.65  24.8w 02TH301   568  C~2lRa      
2015 10  07.44703  03 13 22.503  +16 49 05.54  24.6w 02TH301   568  C~2lRa      
2015 10  08.45165  03 13 18.454  +16 48 48.91  25.1w 02TH301   568  C~2lRa      
2015 10  08.51072  03 13 18.207  +16 48 47.90  24.8w 02TH301   568  C~2lRa      
2015 11  07.35903  03 10 54.343  +16 39 08.31  25.1r 02TH301   568  C~2lRa      
2015 11  07.40112  03 10 54.112  +16 39 07.45  25.0r 02TH301   568  C~2lRa      
2015 11  07.44330  03 10 53.893  +16 39 06.65  25.1r 02TH301   568  C~2lRa      
2015 11  10.52886  03 10 37.550  +16 38 01.77  25.1w 02TH301   568  C~2lRa      
2015 11  17.37547  03 10 01.282  +16 35 39.07  25.3w 02TH301   568  C~2lRa      
2015 11  17.42215  03 10 01.028  +16 35 38.06  25.6w 02TH301   568  C~2lRa      
2015 12  06.38432  03 08 24.921  +16 29 26.23  25.7w 02TH301   568  C~2lRa      
2015 12  13.31874  03 07 53.302  +16 27 25.82  25.7w 02TH301   568  C~2lRa      
2015 12  13.37723  03 07 53.037  +16 27 25.45  24.3w 02TH301   568  C~2lRa      
2016 01  01.37186  03 06 42.724  +16 23 07.27  25.7w 02TH301   568  C~2lRa      
2016 01  07.31862  03 06 26.716  +16 22 12.63  26.3w 02TH301   568  C~2lRa      
2016 02  04.29505  03 05 58.413  +16 21 12.44  25.3w 02TH301   568  C~2lRa      
2016 02  10.28486  03 06 03.039  +16 21 43.26  25.9w 02TH301   568  C~2lRa      
2016 10  10.40230  03 19 08.607  +17 13 14.84  25.6w 02TH301   568  C~2lRa      
2016 10  10.46065  03 19 08.376  +17 13 13.70  25.3w 02TH301   568  C~2lRa      
2016 10  27.49100  03 17 49.086  +17 08 03.25  25.3w 02TH301   568  C~2lRa      
2016 11  03.51606  03 17 12.999  +17 05 43.84  25.4w 02TH301   568  C~2lRa      
2016 12  24.29598  03 13 05.699  +16 50 20.59  25.3w 02TH301   568  C~2lRa      
2017 01  02.39822  03 12 35.438  +16 48 35.85  25.7w 02TH301   568  C~2lRa      
2017 01  26.28489  03 11 52.526  +16 46 30.24        02TH301   568  C~2lRa      
2017 01  26.32220  03 11 52.512  +16 46 30.52  25.6w 02TH301   568  C~2lRa      
2017 12  16.39181  03 19 38.967  +17 17 22.31  25.5w 02TH301   568  C~2lRa      

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     0.19       0.00    -0.17
  2   0.0000      0.00    -0.04       0.00     0.07
  3   0.0000      0.00     0.01       0.00    -0.01
  4   0.0000      0.00    -0.09       0.00    -0.08
  5   0.0001      0.00    -0.19       0.00    -0.25
  6   0.0001      0.00     0.01       0.00    -0.32
  7   0.0001      0.00     0.21       0.00    -0.30
  8   0.0001      0.00     0.17       0.00    -0.04
  9   0.0001      0.00     0.07       0.00    -0.01
 10   0.0002      0.00    -0.04       0.00    -0.03
 11   0.0002      0.00    -0.14       0.00    -0.21
 12   0.0002      0.00    -0.02       0.00    -0.26
 13   0.0002      0.00     0.03       0.00    -0.23
 14   0.0002      0.00     0.08       0.00     0.20
 15   0.0003      0.00     0.13       0.00    -0.07
 16   0.0003      0.00    -0.12       0.00     0.16
 17   0.0003      0.00    -0.07       0.00     0.09
 18   0.0003      0.00    -0.02       0.00     0.02
 19   0.0003      0.00     0.03       0.00    -0.06
 20   0.0003      0.00    -0.30       0.00    -0.20
 21   0.0003      0.00     0.09       0.00    -0.26
 22   0.0004      0.00     0.14       0.00    -0.23
 23   0.0004      0.00     0.19       0.00     0.10
 24   0.0004      0.00     0.08       0.00     0.23
 25   0.0024      0.00     0.16       0.00     0.72
 26   0.0024      0.00     0.21       0.00    -0.15
 27   0.0025      0.00     0.26       0.00     0.28
 28   0.0025      0.00     0.16       0.00     0.10
 29   0.0025      0.00    -0.22       0.00     0.10
 30   0.0025      0.00    -0.17       0.00     0.33
 31   0.0025      0.00    -0.42       0.00     0.36
 32   0.0025      0.00    -0.22       0.00    -0.01
 33   0.0026      0.00    -0.17       0.00    -0.19
 34   0.0026      0.00     0.03       0.00    -0.16
 35   0.0026      0.00     0.24       0.00    -0.03
 36   0.0026      0.00    -0.01       0.00    -0.00
 37   0.0026      0.00    -0.11       0.00     0.03
 38   0.0026      0.00    -0.06       0.00     0.15
 39   0.0026      0.00    -0.28       0.00     0.39
 40   0.0026      0.00    -0.23       0.00     0.22
 41   0.0027      0.00    -0.18       0.00     0.25
 42   0.0027      0.00    -0.43       0.00    -0.13
 43   0.0027      0.00    -0.07       0.00     0.00
 44   0.0027      0.00    -0.02       0.00    -0.17
 45   0.0027      0.00     0.18       0.00    -0.14
 46   0.0027      0.00    -0.07       0.00    -0.41
 47   0.0028      0.00    -0.11       0.00     0.24
 48   0.0028      0.00     0.29       0.00    -0.03
 49   0.0028      0.00    -0.11       0.00     0.10
 50   0.0028      0.00    -0.05       0.00    -0.17
 51   0.0028      0.00    -0.15       0.00    -0.34
 52   0.0029      0.00     0.05       0.00    -0.21
 53   0.0029      0.00     0.26       0.00     0.02
 54   0.0029      0.00     0.16       0.00     0.15
 55   0.0029      0.00     0.06       0.00    -0.03
 56   0.0029      0.00     0.11       0.00     0.20
 57   0.0029      0.00     0.02       0.00     0.03
 58   0.0029      0.00    -0.05       0.00    -0.03
 59   0.0030      0.00    -0.00       0.00     0.10
 60   0.0031      0.00    -0.23       0.00     0.10
 61   0.0032      0.00    -0.03       0.00     0.03
 62   0.0032      0.00     0.17       0.00    -0.14
 63   0.0032      0.00     0.07       0.00    -0.01
 64   0.0032      0.00     0.27       0.00    -0.08
 65   0.0032      0.00     0.02       0.00     0.05
 66   0.0032      0.00     0.22       0.00     0.28
 67  12.1145      0.00     0.26       0.00     0.13
 68  12.1148      0.00     0.09       0.00    -0.15
 69  12.1151      0.00     0.16       0.00    -0.11
 70  12.1200      0.00    -0.06       0.00    -0.06
 71  12.1313      0.00     0.17       0.00    -0.09
 72  12.9177      0.00    -0.03       0.00     0.06
 73  12.9338      0.00     0.14       0.00    -0.01
 74  13.0020      0.00    -0.01       0.00    -0.23
 75  13.0021      0.00    -0.59       0.00    -0.22
 76  13.0048      0.00    -0.10       0.00    -0.03
 77  13.0050      0.00    -0.10       0.00    -0.05
 78  13.0867      0.00     0.18       0.00     0.17
 79  13.0868      0.00     0.10       0.00     0.18
 80  13.0869      0.00     0.21       0.00     0.26
 81  13.0954      0.00    -0.02       0.00    -0.06
 82  13.1141      0.00    -0.03       0.00    -0.02
 83  13.1142      0.00    -0.07       0.00    -0.06
 84  13.1662      0.00    -0.25       0.00     0.34
 85  13.1851      0.00    -0.02       0.00    -0.06
 86  13.1853      0.00    -0.08       0.00     0.53
 87  13.2373      0.00     0.07       0.00    -0.15
 88  13.2536      0.00    -0.18       0.00    -0.01
 89  13.3302      0.00    -0.21       0.00     0.40
 90  13.3466      0.00    -0.11       0.00     0.02
 91  14.0122      0.00    -0.08       0.00     0.01
 92  14.0124      0.00     0.20       0.00    -0.17
 93  14.0590      0.00     0.04       0.00    -0.06
 94  14.0782      0.00     0.24       0.00    -0.07
 95  14.2173      0.00     0.10       0.00    -0.23
 96  14.2422      0.00     0.03       0.00    -0.11
 97  14.3076      0.00    -0.11       0.00    -0.16
 98  14.3077      0.00     0.05       0.00     0.14
 99  15.1949      0.00     0.15       0.00    -0.07

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.

02TH301    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.710    39.710    39.710
ecceobj         0.042     0.042     0.042
incobj          1.541     1.541     1.541
qmin           36.755    36.760    36.757
qmax           42.496    42.464    42.476
amean          39.473    39.472    39.473
amin           39.120    39.120    39.122
amax           39.849    39.848    39.849
emean           0.043     0.043     0.043
emin            0.018     0.017     0.019
emax            0.068     0.068     0.068
imean           4.654     4.646     4.655
imin            0.386     0.386     0.386
imax            6.565     6.556     6.566
excite_mean     0.094     0.094     0.094
fracstop        1.000     1.000     1.000
cjmean          3.040     3.040     3.040

libcent 0       179.9     179.2     179.9
libamp  0        81.4      82.3      81.2
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       179.5     179.2     179.4
kozaiamp        179.9     179.9     180.0