Orbit Fit and Astrometric record for 612245

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: 612245    
# Created Sat Mar 30 01:09:22 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     86 observations of     89
# Arc:  16.19y
# First observation: 2001/08/19
#  Last observation: 2017/10/27
# Chi-squared of fit:  1031.21 DOF:    166 RMS:  0.61
# Min/Max residuals:    -1.97    1.91
# Exact a, adot, b, bdot, g, gdot:
  4.727383E-06  2.923609E-02 -3.148539E-06 -5.881346E-03  2.625333E-02  6.934610E-03
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
   27.107599    8.901710    0.692530    0.336716   -0.658091  2452140.540573
# Heliocentric elements and errors
Epoch:              2452140.5000  =  2001/08/19
Mean Anomaly:           19.11799 +/-     0.000
Argument of Peri:       65.67634 +/-     0.000
Long of Asc Node:      255.03176 +/-     0.000
Inclination:            28.50211 +/-     0.000
Eccentricity:         0.38893073 +/-    0.0000
Semi-Major Axis:     58.32708875 +/-    0.0000
Time of Perihelion: 2443499.9058 +/-       0.0
Perihelion:          35.64189153 +/-    0.0000
Aphelion:            81.01228597 +/-    0.0000
Period (y)              445.4651 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.33809540 +/-    0.0000
Ecliptic Y            4.68255981 +/-    0.0000
Ecliptic Z           17.35631071 +/-    0.0000
Ecliptic XDOT         0.00043168 +/-    0.0000
Ecliptic YDOT         0.00315640 +/-    0.0000
Ecliptic ZDOT        -0.00021623 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.75901635 +/-    0.0000
Geocenter to KBO     38.09028226 +/-    0.0000
# Hcoef:  6.02

The following table shows the complete astrometric record for 612245. 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 (612245) followed by the observatory code and reference code for the source of the astrometry.

2001 08  19.03983  23 45 43.05   +28 13 10.8   22.0  612245    950  Ce0367      
2001 08  19.07472  23 45 42.84   +28 13 09.5   22.2  612245    950  Ce0367      
2001 08  19.10871  23 45 42.66   +28 13 09.8   22.0  612245    950  Ce0367      
2001 08  19.14417  23 45 42.49   +28 13 09.8   22.0  612245    950  Ce0367      
2001 08  19.21794  23 45 42.16   +28 13 10.1   22.1  612245    950  Ce0367      
2001 08  20.08731  23 45 38.39   +28 13 09.0   22.2  612245    950  Ce0367      
2001 08  20.09524  23 45 38.37   +28 13 09.3   22.4  612245    950  Ce0367      
2001 08  20.10318  23 45 38.34   +28 13 09.5         612245    950  Ce0367      
2001 08  20.11114  23 45 38.24   +28 13 08.7   22.0  612245    950  Ce0367      
2001 08  20.15216  23 45 38.04   +28 13 08.6   22.4  612245    950  Ce0367      
2001 08  22.08518  23 45 29.45   +28 13 03.1   21.8  612245    950  Ce0367      
2001 08  22.09308  23 45 29.41   +28 13 03.0   21.8  612245    950  Ce0367      
2001 08  22.18019  23 45 28.97   +28 13 02.9   21.8  612245    950  Ce0367      
2001 08  22.21408  23 45 28.84   +28 13 03.0   22.1  612245    950  Ce0367      
2001 08  23.04174  23 45 25.05   +28 12 58.6   22.2  612245    950  Ce0367      
2001 08  23.05846  23 45 25.00   +28 12 58.4         612245    950  Ce0367      
2001 08  23.08449  23 45 24.89   +28 12 58.7   22.2  612245    950  Ce0367      
2001 08  23.13417  23 45 24.64   +28 12 58.6   22.1  612245    950  Ce0367      
2001 08  23.19114  23 45 24.34   +28 12 57.7   22.4  612245    950  Ce0367      
2001 08  23.22455  23 45 24.22   +28 12 58.1   22.0  612245    950  Ce0367      
2001 08  24.10178  23 45 20.20   +28 12 53.4   22.2  612245    950  Ce0367      
2001 08  24.10972  23 45 20.16   +28 12 53.5   21.8  612245    950  Ce0367      
2001 08  24.11773  23 45 20.13   +28 12 53.6   21.9  612245    950  Ce0367      
2001 08  25.04090  23 45 15.75   +28 12 46.7   22.0R 612245    950  Ci2957      
2001 08  25.07429  23 45 15.59   +28 12 46.6         612245    950  Ci2957      
2001 08  25.11609  23 45 15.40   +28 12 46.4         612245    950  Ci2957      
2001 08  26.05472  23 45 11.06   +28 12 39.8   22.1  612245    950  Ce0367      
2001 08  26.07144  23 45 10.99   +28 12 40.0   22.1  612245    950  Ce0367      
2001 08  26.08814  23 45 10.90   +28 12 39.8   22.1  612245    950  Ce0367      
2001 12  10.21190  23 38 54.28   +27 02 24.4   22.3R 612245    568  Ce3754      
2001 12  10.29339  23 38 54.32   +27 02 20.8   22.2R 612245    568  Ce3754      
2001 12  20.23926  23 39 05.55   +26 55 30.4   22.4R 612245    568  Ce3754      
2001 12  20.31399  23 39 05.66   +26 55 28.0   21.7R 612245    568  Ce3754      
2001 12  21.21013  23 39 07.23   +26 54 53.7   22.2R 612245    568  Ce3754      
2002 06  15.41052  23 54 47.35   +28 09 11.0   22.3R 612245    695  Cf7165      
2002 06  15.44037  23 54 47.41   +28 09 12.6   22.3R 612245    695  Cf7165      
2002 06  16.44561  23 54 49.04   +28 10 01.6   22.3R 612245    695  Cf7165      
2002 10  09.26715  23 48 57.86   +28 20 18.6   22.1R 612245    290  Ch3951      
2002 10  09.31456  23 48 57.61   +28 20 16.6   22.4R 612245    290  Ch3951      
2002 10  11.12705  23 48 48.92   +28 19 00.2   22.4R 612245    290  Ch3951      
2002 10  11.17360  23 48 48.66   +28 18 58.4         612245    290  Ch3951      
2003 09  29.203806 23 57 16.88   +28 51 48.9   22.1V 612245    645  C~1RHM      
2003 09  29.204635 23 57 16.88   +28 51 48.8   21.5V 612245    645  C~1RHM      
2003 09  29.207123 23 57 16.87   +28 51 48.8   22.9V 612245    645  C~1RHM      
2006 12  24.09737  00 15 08.28   +28 51 55.1   22.7R 612245    688  Ct1847      
2006 12  24.18493  00 15 08.45   +28 51 51.8         612245    688  Ct1847      
2008 10  24.18107  00 31 38.26   +30 13 47.4   22.9r 612245    695  C~0gLv      
2008 10  24.28752  00 31 37.76   +30 13 42.8   22.5r 612245    695  C~0gLv      
2009 10  16.417581 00 39 24.58   +30 33 52.3         612245    645  C~1RHM      
2009 10  16.418410 00 39 24.58   +30 33 52.3         612245    645  C~1RHM      
2009 10  16.420898 00 39 24.57   +30 33 52.2         612245    645  C~1RHM      
2009 10  18.268459 00 39 15.40   +30 32 42.8         612245    645  C~1RHM      
2009 10  18.269288 00 39 15.39   +30 32 42.8         612245    645  C~1RHM      
2009 10  18.271776 00 39 15.38   +30 32 42.8         612245    645  C~1RHM      
2009 11  16.257396 00 37 11.57   +30 11 29.5         612245    645  C~1RHM      
2009 11  16.258225 00 37 11.56   +30 11 29.5         612245    645  C~1RHM      
2009 11  16.260713 00 37 11.56   +30 11 29.4         612245    645  C~1RHM      
2010 01  11.88316  00 36 36.18   +29 31 55.1         612245    250  S~0M3O      
2010 01  11.88554  00 36 36.18   +29 31 55.1         612245    250  S~0M3O      
2010 01  11.93574  00 36 36.30   +29 31 53.6         612245    250  S~0M3O      
2010 01  11.93813  00 36 36.31   +29 31 53.6         612245    250  S~0M3O      
2010 01  11.94321  00 36 36.31   +29 31 53.8         612245    250  S~0M3O      
2010 01  11.94876  00 36 36.33   +29 31 53.6         612245    250  S~0M3O      
2010 01  12.00416  00 36 36.47   +29 31 52.0         612245    250  S~0M3O      
2010 01  12.00971  00 36 36.48   +29 31 51.9         612245    250  S~0M3O      
2010 10  27.80994  00 45 34.24   +30 39 49.2   21.8V 612245    493  C~0PK7      
2011 10  23.32454  00 52 56.118  +30 54 44.04  21.5G 612245    F51  C~2r78      
2011 10  26.30964  00 52 41.621  +30 52 48.81  23.0G 612245    F51  C~2r78      
2015 12  05.21322  01 17 05.916  +30 58 00.19  22.7G 612245    F51  C~2r78      
2015 12  05.22425  01 17 05.896  +30 57 59.63  22.4G 612245    F51  C~2r78      
2015 12  05.23529  01 17 05.856  +30 57 59.13  22.9G 612245    F51  C~2r78      
2015 12  05.24642  01 17 05.829  +30 57 58.37  23.5G 612245    F51  C~2r78      
2015 12  06.20974  01 17 03.276  +30 57 17.01  22.6G 612245    F51  C~2r78      
2015 12  06.22236  01 17 03.250  +30 57 16.68  23.4G 612245    F51  C~2r78      
2015 12  06.23341  01 17 03.208  +30 57 16.03  22.6G 612245    F51  C~2r78      
2015 12  06.24453  01 17 03.173  +30 57 15.67  22.6G 612245    F51  C~2r78      
2017 08  26.39405  01 37 07.628  +31 46 19.37  22.4G 612245    F51  C~2r78      
2017 08  26.44379  01 37 07.509  +31 46 19.83  22.7G 612245    F51  C~2r78      
2017 08  27.46644  01 37 04.775  +31 46 27.01  23.2G 612245    F51  C~2r78      
2017 09  23.36485  01 35 26.33   +31 45 10.2   23.0R 612245    G37  C~2e91      
2017 09  23.42010  01 35 26.11   +31 45 09.6         612245    G37  C~2e91      
2017 09  23.45149  01 35 25.95   +31 45 09.1         612245    G37  C~2e91      
2017 10  27.32568  01 32 40.165  +31 31 58.63  22.5G 612245    F51  C~2r78      
2017 10  27.33670  01 32 40.097  +31 31 58.23  22.0G 612245    F51  C~2r78      
2017 10  27.34779  01 32 40.024  +31 31 57.86  21.7G 612245    F51  C~2r78      
2017 10  27.35891  01 32 39.987  +31 31 57.45  22.9G 612245    F51  C~2r78      
2021 12  01.111210 01 54 59.433  +31 13 01.86  23.0G 612245    G37  C~5J0y      
2021 12  01.162820 01 54 59.224  +31 13 00.10        612245    G37  C~5J0y      
2021 12  01.214690 01 54 59.044  +31 12 57.90        612245    G37  C~5J0y      

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 (   2.74)      0.00 (   1.11)
     2   0.0001      0.00     1.91       0.00    -0.17
     3   0.0002      0.00     1.47       0.00     0.16
     4   0.0003      0.00     1.29       0.00     0.19
     5   0.0005      0.00     1.25       0.00     0.58
     6   0.0029      0.00     1.62       0.00     0.72
     7   0.0029      0.00     1.86       0.00     1.03
     8   0.0029      0.00 (   1.94)      0.00 (   1.24)
     9   0.0029      0.00     0.98       0.00     0.46
    10   0.0030      0.00     0.75       0.00     0.44
    11   0.0083      0.00     1.07       0.00     0.43
    12   0.0084      0.00     1.01       0.00     0.36
    13   0.0086      0.00     0.43       0.00     0.59
    14   0.0087      0.00     0.82       0.00     0.83
    15   0.0110      0.00     0.05       0.00    -0.03
    16   0.0110      0.00     0.46       0.00    -0.15
    17   0.0111      0.00     0.63       0.00     0.26
    18   0.0112      0.00     0.35       0.00     0.40
    19   0.0114      0.00    -0.17       0.00    -0.22
    20   0.0115      0.00     0.35       0.00     0.35
    21   0.0139      0.00     0.25       0.00     0.25
    22   0.0139      0.00     0.21       0.00     0.40
    23   0.0139      0.00     0.32       0.00     0.54
    24   0.0164      0.00    -1.36       0.00    -0.68
    25   0.0165      0.00    -1.38       0.00    -0.57
    26   0.0166      0.00    -1.26       0.00    -0.49
    27   0.0192      0.00    -0.60       0.00    -0.43
    28   0.0193      0.00    -0.45       0.00    -0.11
    29   0.0193      0.00    -0.59       0.00    -0.19
    30   0.3098      0.00    -0.28       0.00    -0.54
    31   0.3101      0.00    -0.26       0.00    -0.53
    32   0.3373      0.00    -0.43       0.00    -0.41
    33   0.3375      0.00    -0.58       0.00     0.08
    34   0.3400      0.00    -0.54       0.00    -0.29
    35   0.8224      0.00    -1.97       0.00    -0.70
    36   0.8225      0.00    -1.81       0.00    -0.59
    37   0.8252      0.00 (  -2.20)      0.00 (  -0.85)
    38   1.1396      0.00    -0.72       0.00    -0.23
    39   1.1397      0.00    -0.94       0.00    -0.26
    40   1.1447      0.00    -0.25       0.00    -0.40
    41   1.1448      0.00    -0.75       0.00    -0.23
    42   2.1113      0.00    -1.18       0.00    -0.58
    43   2.1113      0.00    -1.11       0.00    -0.65
    44   2.1113      0.00    -1.07       0.00    -0.56
    45   5.3472      0.00    -1.14       0.00     0.15
    46   5.3474      0.00     0.25       0.00     0.30
    47   7.1818      0.00    -0.33       0.00    -0.15
    48   7.1821      0.00    -0.24       0.00    -0.23
    49   8.1598      0.00    -0.20       0.00    -0.68
    50   8.1598      0.00    -0.14       0.00    -0.65
    51   8.1598      0.00    -0.10       0.00    -0.66
    52   8.1649      0.00    -0.02       0.00    -0.54
    53   8.1649      0.00    -0.11       0.00    -0.51
    54   8.1649      0.00    -0.07       0.00    -0.42
    55   8.2443      0.00    -0.03       0.00    -0.35
    56   8.2443      0.00    -0.13       0.00    -0.31
    57   8.2443      0.00    -0.00       0.00    -0.29
    58   8.3993      0.00     0.45       0.00     0.30
    59   8.3993      0.00     0.36       0.00     0.37
    60   8.3994      0.00     0.40       0.00     0.31
    61   8.3994      0.00     0.46       0.00     0.38
    62   8.3995      0.00     0.28       0.00     0.73
    63   8.3995      0.00     0.39       0.00     0.69
    64   8.3996      0.00     0.53       0.00     0.68
    65   8.3996      0.00     0.49       0.00     0.73
    66   9.1903      0.00    -0.17       0.00     0.17
    67  10.1774      0.00     0.11       0.00    -0.35
    68  10.1855      0.00    -0.01       0.00    -0.02
    69  14.2948      0.00     0.48       0.00     0.15
    70  14.2948      0.00     0.64       0.00     0.07
    71  14.2949      0.00     0.51       0.00     0.04
    72  14.2949      0.00     0.57       0.00    -0.24
    73  14.2975      0.00     0.66       0.00     0.09
    74  14.2976      0.00     0.78       0.00     0.31
    75  14.2976      0.00     0.60       0.00     0.13
    76  14.2976      0.00     0.53       0.00     0.25
    77  16.0201      0.00    -0.69       0.00    -0.29
    78  16.0203      0.00    -0.48       0.00    -0.22
    79  16.0231      0.00    -0.68       0.00    -0.14
    80  16.0967      0.00    -0.75       0.00     0.10
    81  16.0969      0.00    -0.28       0.00     0.19
    82  16.0970      0.00    -0.55       0.00     0.09
    83  16.1897      0.00     0.20       0.00    -0.08
    84  16.1897      0.00     0.02       0.00    -0.12
    85  16.1898      0.00    -0.24       0.00    -0.13
    86  16.1898      0.00     0.05       0.00    -0.17
    87  20.2849      0.00     0.04       0.00     0.12
    88  20.2851      0.00    -0.18       0.00     0.32
    89  20.2852      0.00     0.04       0.00     0.10

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.

612245    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        58.811    58.811    58.810
ecceobj         0.394     0.394     0.394
incobj         28.507    28.507    28.507
qmin           34.750    34.756    34.734
qmax           82.607    82.760    82.739
amean          58.184    58.187    58.183
amin           57.536    57.557    57.549
amax           58.980    59.064    59.048
emean           0.382     0.382     0.382
emin            0.360     0.361     0.360
emax            0.401     0.402     0.401
imean          30.172    30.170    30.172
imin           29.555    29.557    29.561
imax           30.983    30.970    30.973
excite_mean     0.631     0.631     0.631
fracstop        1.000     1.000     1.000
cjmean          2.737     2.737     2.737

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       166.4     166.5     166.5
kozaiamp        179.9     180.0     180.0