Orbit Fit and Astrometric record for 612175

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: 612175    
# Created Fri Oct  7 01:08:59 2022
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     74 observations of     74
# Arc:  21.04y
# First observation: 2000/08/29
#  Last observation: 2021/09/12
# Chi-squared of fit:   146.25 DOF:    142 RMS:  0.25
# Min/Max residuals:    -1.60    0.53
# Exact a, adot, b, bdot, g, gdot:
  1.550119E-05  1.973864E-02  4.205698E-07 -3.150106E-04  2.203336E-02 -1.201120E-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
   -0.783341  -21.457842    0.047764   -0.013904   -1.005324  2451785.724523
# Heliocentric elements and errors
Epoch:              2451786.5000  =  2000/08/30
Mean Anomaly:          235.65384 +/-     0.000
Argument of Peri:      351.74205 +/-     0.000
Long of Asc Node:      118.46672 +/-     0.000
Inclination:             1.19144 +/-     0.000
Eccentricity:         0.08258653 +/-    0.0000
Semi-Major Axis:     44.14635526 +/-    0.0000
Time of Perihelion: 2488792.3669 +/-       0.0
Perihelion:          40.50046105 +/-    0.0000
Aphelion:            47.79224946 +/-    0.0000
Period (y)              293.3259 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           43.16006593 +/-    0.0000
Ecliptic Y          -17.00855277 +/-    0.0000
Ecliptic Z           -0.62048709 +/-    0.0000
Ecliptic XDOT         0.00075055 +/-    0.0000
Ecliptic YDOT         0.00234278 +/-    0.0000
Ecliptic ZDOT        -0.00003695 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.39473081 +/-    0.0000
Geocenter to KBO     45.38580132 +/-    0.0000
# Hcoef:  6.45

The following table shows the complete astrometric record for 612175. 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 (612175) followed by the observatory code and reference code for the source of the astrometry.

2000 08  29.22378  22 41 51.89   -09 05 36.0         612175    809  Cb8401      
2000 08  30.10532  22 41 48.26   -09 05 57.9         612175    809  Cb8401      
2000 08  30.19597  22 41 47.86   -09 06 00.3         612175    809  Cb8401      
2000 08  30.27500  22 41 47.53   -09 06 02.0   22.5R 612175    809  Cb8401      
2000 08  30.32187  22 41 47.33   -09 06 03.3         612175    809  Cb8401      
2000 08  30.36952  22 41 47.14   -09 06 04.4         612175    809  Cb8401      
2000 11  27.12435  22 38 06.01   -09 27 19.5   22.9R 612175    695  Cc3790      
2000 11  28.15953  22 38 06.57   -09 27 13.1   22.4R 612175    695  Cc3790      
2000 11  29.15392  22 38 07.21   -09 27 08.4   22.9R 612175    695  Cc3790      
2005 08  08.11980  23 04 35.30   -06 51 58.2   21.7R 612175    807  Co3374      
2005 08  08.23607  23 04 34.89   -06 52 01.0         612175    807  Co3374      
2005 08  09.12496  23 04 31.76   -06 52 21.2         612175    807  Co3374      
2006 08  22.26237  23 07 59.80   -06 31 52.9   21.7R 612175    807  Cs2440      
2006 08  23.18631  23 07 56.18   -06 32 16.2         612175    807  Cs2440      
2006 08  23.25480  23 07 55.90   -06 32 18.0         612175    807  Cs2440      
2006 10  19.17414  23 04 17.94   -06 54 53.3   22.5R 612175    695  Ct0277      
2006 10  19.26624  23 04 17.67   -06 54 54.9         612175    695  Ct0277      
2006 10  20.16577  23 04 15.04   -06 55 10.5         612175    695  Ct0277      
2006 12  21.09338  23 03 36.79   -06 58 06.0   22.4R 612175    695  Ct5425      
2006 12  21.17556  23 03 36.92   -06 58 05.4         612175    695  Ct5425      
2010 07  20.60742  23 26 51.614  -04 35 51.03  21.4G 612175    F51  C~343g      
2010 09  16.30647  23 23 30.62   -04 57 57.4   22.6R 612175    688  C~0NFG      
2010 09  16.35513  23 23 30.45   -04 57 58.9         612175    688  C~0NFG      
2011 09  21.36646  23 27 30.410  -04 33 22.92  22.8G 612175    F51  C~343g      
2011 09  21.39457  23 27 30.301  -04 33 23.44  22.9G 612175    F51  C~343g      
2011 09  21.40862  23 27 30.236  -04 33 24.02  22.9G 612175    F51  C~343g      
2012 10  06.35353  23 30 47.273  -04 13 14.12  22.5G 612175    F51  C~343g      
2014 07  28.53911  23 43 44.564  -02 50 54.36  23.2G 612175    F51  C~343g      
2014 07  28.55054  23 43 44.541  -02 50 54.51  22.1G 612175    F51  C~343g      
2014 07  28.57331  23 43 44.484  -02 50 54.54  23.8G 612175    F51  C~343g      
2014 08  05.52194  23 43 23.788  -02 53 18.88  23.9G 612175    F51  C~343g      
2014 08  20.48120  23 42 35.572  -02 58 45.63  23.0G 612175    F51  C~343g      
2014 08  22.47844  23 42 28.388  -02 59 33.67  22.5G 612175    F51  C~343g      
2014 08  22.49068  23 42 28.327  -02 59 33.98  22.8G 612175    F51  C~343g      
2014 08  22.50296  23 42 28.270  -02 59 34.06  22.7G 612175    F51  C~343g      
2014 08  22.51523  23 42 28.233  -02 59 34.54  22.4G 612175    F51  C~343g      
2014 09  17.36258  23 40 45.506  -03 10 51.01  22.9G 612175    F51  C~343g      
2014 09  19.33339  23 40 37.324  -03 11 44.17  22.6G 612175    F51  C~343g      
2014 09  19.36903  23 40 37.167  -03 11 45.46  23.0G 612175    F51  C~343g      
2014 11  18.23718  23 37 23.789  -03 31 56.47  23.0G 612175    F51  C~343g      
2014 11  26.28988  23 37 13.725  -03 32 51.16  23.7G 612175    F51  C~343g      
2015 09  09.41754  23 45 39.709  -02 39 57.34  22.8G 612175    F51  C~343g      
2015 09  09.42969  23 45 39.646  -02 39 57.79  22.7G 612175    F51  C~343g      
2015 09  09.44186  23 45 39.599  -02 39 57.92  22.6G 612175    F51  C~343g      
2015 09  10.39349  23 45 35.711  -02 40 23.71  22.6G 612175    F51  C~343g      
2015 09  12.41868  23 45 27.386  -02 41 17.98  23.1G 612175    F51  C~343g      
2015 09  12.43045  23 45 27.338  -02 41 18.37  23.1G 612175    F51  C~343g      
2017 07  30.53307  23 56 36.302  -01 29 58.63  22.9G 612175    F51  C~343g      
2017 08  01.53329  23 56 31.593  -01 30 31.58  22.9G 612175    F51  C~343g      
2017 08  01.54515  23 56 31.556  -01 30 31.77  23.2G 612175    F51  C~343g      
2017 08  01.55704  23 56 31.515  -01 30 31.81  22.3G 612175    F51  C~343g      
2017 08  01.56895  23 56 31.494  -01 30 32.12  22.5G 612175    F51  C~343g      
2017 08  03.52437  23 56 26.690  -01 31 05.65  22.6G 612175    F51  C~343g      
2017 08  03.53513  23 56 26.646  -01 31 05.98  23.2G 612175    F51  C~343g      
2017 08  03.54593  23 56 26.626  -01 31 06.55  22.5G 612175    F51  C~343g      
2017 08  03.55668  23 56 26.586  -01 31 06.63  23.3G 612175    F51  C~343g      
2017 08  20.57232  23 55 35.362  -01 36 58.18  23.5G 612175    F51  C~343g      
2017 09  14.41468  23 53 59.622  -01 47 35.57  22.4G 612175    F51  C~343g      
2017 09  17.42122  23 53 47.168  -01 48 57.49  22.8G 612175    F51  C~343g      
2017 09  25.38210  23 53 14.051  -01 52 33.94  22.9G 612175    F51  C~343g      
2017 09  25.40332  23 53 13.943  -01 52 34.25  22.5G 612175    F51  C~343g      
2017 09  25.41391  23 53 13.879  -01 52 34.22  22.9G 612175    F51  C~343g      
2017 09  26.38949  23 53 09.841  -01 53 00.87  22.3G 612175    F51  C~343g      
2017 09  26.40129  23 53 09.782  -01 53 01.06  22.9G 612175    F51  C~343g      
2017 09  26.41309  23 53 09.749  -01 53 01.19  22.5G 612175    F51  C~343g      
2017 09  26.42490  23 53 09.692  -01 53 01.26  22.8G 612175    F51  C~343g      
2017 09  28.43034  23 53 01.370  -01 53 55.45  23.6G 612175    F51  C~343g      
2017 09  28.44211  23 53 01.347  -01 53 55.40  23.0G 612175    F51  C~343g      
2017 09  28.45385  23 53 01.278  -01 53 55.85  22.7G 612175    F51  C~343g      
2017 09  28.46562  23 53 01.260  -01 53 56.41  22.9G 612175    F51  C~343g      
2017 11  13.28053  23 50 26.760  -02 10 08.66  23.7G 612175    F51  C~343g      
2021 09  12.317360 00 11 44.783  +00 04 44.49  22.9G 612175    G37  C~552k      
2021 09  12.377460 00 11 44.540  +00 04 42.98        612175    G37  C~552k      
2021 09  12.437700 00 11 44.296  +00 04 41.30        612175    G37  C~552k      

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    -0.21       0.00    -0.23
     2   0.0024      0.00     0.02       0.00    -0.07
     3   0.0027      0.00    -0.26       0.00    -0.19
     4   0.0029      0.00    -0.21       0.00     0.08
     5   0.0030      0.00    -0.25       0.00    -0.05
     6   0.0031      0.00    -0.11       0.00     0.04
     7   0.2461      0.00     0.49       0.00    -1.60
     8   0.2490      0.00     0.33       0.00     0.43
     9   0.2517      0.00     0.38       0.00     0.42
    10   4.9415      0.00     0.08       0.00     0.21
    11   4.9419      0.00     0.14       0.00     0.05
    12   4.9443      0.00     0.08       0.00     0.06
    13   5.9796      0.00    -0.10       0.00     0.07
    14   5.9821      0.00     0.02       0.00     0.02
    15   5.9823      0.00    -0.06       0.00    -0.05
    16   6.1381      0.00     0.11       0.00     0.28
    17   6.1384      0.00     0.22       0.00     0.31
    18   6.1408      0.00     0.01       0.00     0.42
    19   6.3104      0.00     0.06       0.00     0.38
    20   6.3106      0.00    -0.27       0.00    -0.08
    21   9.8902      0.00    -0.09       0.00     0.40
    22  10.0481      0.00    -0.88       0.00    -0.39
    23  10.0483      0.00    -0.37       0.00    -0.61
    24  11.0613      0.00     0.08       0.00    -0.04
    25  11.0614      0.00     0.21       0.00     0.18
    26  11.0614      0.00     0.12       0.00    -0.03
    27  12.1044      0.00     0.01       0.00    -0.17
    28  13.9119      0.00     0.00       0.00     0.14
    29  13.9119      0.00     0.07       0.00     0.18
    30  13.9120      0.00     0.05       0.00     0.53
    31  13.9337      0.00     0.36       0.00    -0.10
    32  13.9747      0.00     0.02       0.00    -0.07
    33  13.9802      0.00     0.24       0.00     0.09
    34  13.9802      0.00     0.01       0.00     0.08
    35  13.9802      0.00    -0.16       0.00     0.30
    36  13.9803      0.00    -0.03       0.00     0.11
    37  14.0510      0.00     0.11       0.00     0.25
    38  14.0564      0.00     0.04       0.00     0.18
    39  14.0565      0.00    -0.06       0.00    -0.15
    40  14.2204      0.00     0.22       0.00    -0.01
    41  14.2425      0.00    -0.15       0.00     0.06
    42  15.0286      0.00     0.05       0.00    -0.03
    43  15.0286      0.00    -0.14       0.00    -0.15
    44  15.0287      0.00    -0.08       0.00     0.05
    45  15.0313      0.00    -0.09       0.00    -0.18
    46  15.0368      0.00    -0.12       0.00     0.12
    47  15.0368      0.00    -0.10       0.00     0.05
    48  16.9180      0.00     0.42       0.00    -0.26
    49  16.9235      0.00     0.08       0.00    -0.12
    50  16.9235      0.00    -0.03       0.00    -0.11
    51  16.9236      0.00    -0.20       0.00     0.05
    52  16.9236      0.00    -0.07       0.00    -0.06
    53  16.9290      0.00     0.26       0.00     0.31
    54  16.9290      0.00     0.02       0.00     0.17
    55  16.9290      0.00     0.15       0.00    -0.20
    56  16.9290      0.00    -0.03       0.00    -0.09
    57  16.9756      0.00    -0.03       0.00     0.03
    58  17.0436      0.00     0.08       0.00     0.17
    59  17.0519      0.00     0.15       0.00    -0.07
    60  17.0737      0.00     0.42       0.00    -0.49
    61  17.0737      0.00     0.14       0.00    -0.23
    62  17.0738      0.00    -0.15       0.00     0.08
    63  17.0764      0.00    -0.03       0.00    -0.30
    64  17.0765      0.00    -0.16       0.00    -0.17
    65  17.0765      0.00     0.09       0.00     0.02
    66  17.0765      0.00    -0.02       0.00     0.26
    67  17.0820      0.00    -0.43       0.00    -0.19
    68  17.0820      0.00    -0.03       0.00     0.17
    69  17.0821      0.00    -0.33       0.00     0.04
    70  17.0821      0.00     0.14       0.00    -0.21
    71  17.2075      0.00     0.03       0.00     0.01
    72  21.0379      0.00    -0.06       0.00    -0.06
    73  21.0381      0.00     0.01       0.00     0.04
    74  21.0382      0.00     0.06       0.00    -0.03

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.

612175    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.231    44.231    44.231
ecceobj         0.081     0.081     0.081
incobj          1.191     1.191     1.191
qmin           39.245    39.252    39.235
qmax           49.170    49.191    49.206
amean          44.057    44.057    44.057
amin           43.696    43.690    43.705
amax           44.439    44.445    44.446
emean           0.090     0.090     0.090
emin            0.072     0.073     0.072
emax            0.107     0.107     0.107
imean           1.047     1.047     1.047
imin            0.063     0.063     0.063
imax            1.756     1.757     1.756
excite_mean     0.092     0.092     0.092
fracstop        1.000     1.000     1.000
cjmean          3.092     3.092     3.092

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       188.2     188.3     188.2
kozaiamp        180.0     180.0     180.0